{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563329,"usec":734126},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.608178,"noise_level":-0.884766,"freq_skew":1.194913,"avlc":{"src":{"addr":"4CAC1F","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":7,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":254,"sseq":5,"rseq":6,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":64,"priority":14,"lifetime":50.000000,"flags":192,"pdu_id":3713,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":3,"ack":2,"credit_offered":5,"credit_avail":4}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563330,"usec":498067},"freq":136975000,"burst_len_octets":62,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.052686,"noise_level":-11.481792,"freq_skew":0.106307,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":4,"sseq":7,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":1,"rseq":4,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":0,"priority":11,"lifetime":32.000000,"flags":246,"pdu_id":706,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":52202,"credit":3,"rseq":4,"variable_part_params":[{"name":"atn_checksum","value":[121,226,148,71]}]},{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":52202,"sseq":3,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[200,247,40,52]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":3,"msg_ref":4,"timestamp":{"date":{"year":2025,"month":10,"day":27},"time":{"hour":11,"min":8,"sec":48}},"logical_ack":"notRequired"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"LOGICAL ACKNOWLEDGMENT","choice":"dM100NULL","data":{}}}]}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563330,"usec":499343},"freq":136975000,"burst_len_octets":51,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.554173,"noise_level":-11.562578,"freq_skew":-1.936180,"avlc":{"src":{"addr":"4CA281","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F63A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":5,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":0,"rseq":5,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":65,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":244,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":52193,"sseq":8,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[160,240,20,42]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":8,"msg_ref":8,"timestamp":{"date":{"year":2025,"month":10,"day":27},"time":{"hour":11,"min":8,"sec":48}},"logical_ack":"required"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"WILCO","choice":"dM0NULL","data":{}}}]}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563330,"usec":517547},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-4.980080,"noise_level":-13.471035,"freq_skew":-0.308268,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F68A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":2}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563331,"usec":282635},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.589445,"noise_level":-13.482947,"freq_skew":-2.001269,"avlc":{"src":{"addr":"4CA281","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F63A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":7}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563331,"usec":291259},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.103630,"noise_level":-13.595262,"freq_skew":0.277683,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":0}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563332,"usec":50835},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.660738,"noise_level":-14.892487,"freq_skew":-2.223302,"avlc":{"src":{"addr":"4CA281","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F63A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":0}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563332,"usec":65312},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.439373,"noise_level":-15.692389,"freq_skew":-2.146111,"avlc":{"src":{"addr":"4CA281","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F63A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":1,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":1,"rseq":0,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":65,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":245,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":52193,"credit":4,"rseq":9,"variable_part_params":[{"name":"atn_checksum","value":[183,100,21,25]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563332,"usec":821424},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.783375,"noise_level":-15.671254,"freq_skew":1.235195,"avlc":{"src":{"addr":"4CAC1F","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":1}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563335,"usec":96510},"freq":136975000,"burst_len_octets":47,"hdr_bits_fixed":1,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.252386,"noise_level":-16.165527,"freq_skew":-0.320499,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F68A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":6,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":2,"more":false,"reasm_status":"skipped","esis":{"err":false,"pdu_type":4,"pdu_type_name":"IS Hello","hold_time":30,"net":[71,0,39,65,69,88,83,0,64,113,124,0,1,0,0,0,0,0,1,0]}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563335,"usec":871606},"freq":136975000,"burst_len_octets":65,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.367854,"noise_level":-15.972190,"freq_skew":-0.519225,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109C2A","type":"Ground station"},"cr":"Response","frame_type":"U","cmd":"XID","pf":true,"xid":{"err":false,"type":"XID_RSP_HO","type_descr":"Handoff Response","pub_params":[{"name":"param_set_id","value":"8885:1993"},{"name":"procedure_classes","value":[0,1]},{"name":"hdlc_options","value":[32,164,136]}],"vdl_params":[{"name":"param_set_id","value":"V"},{"name":"conn_mgmt","value":5},{"name":"xid_sequencing","value":{"seq":1,"retry":0}},{"name":"avlc_specific_options","value":[37]},{"name":"dst_airport","value":"EGPH"},{"name":"ac_location","value":{"loc":{"lat":45.299999,"lon":7.800000},"alt":0}}]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563338,"usec":131297},"freq":136975000,"burst_len_octets":17,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.402076,"noise_level":-15.940915,"freq_skew":-0.374817,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109C2A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":true,"rseq":0,"unknown_proto":{"data":[32,64,97]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563338,"usec":893318},"freq":136975000,"burst_len_octets":47,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.111864,"noise_level":-16.626143,"freq_skew":-0.466253,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F68A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":6,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":2,"more":false,"reasm_status":"skipped","esis":{"err":false,"pdu_type":4,"pdu_type_name":"IS Hello","hold_time":30,"net":[71,0,39,65,69,88,83,0,64,113,124,0,1,0,0,0,0,0,1,0]}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563338,"usec":917648},"freq":136975000,"burst_len_octets":82,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.930559,"noise_level":-16.509130,"freq_skew":-2.965540,"avlc":{"src":{"addr":"4BCD63","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10943A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":4,"sseq":3,"poll":false,"acars":{"err":false,"crc_ok":true,"more":false,"reg":"..TCSKC","mode":"2","label":"83","blk_id":"1","ack":"!","flight":"ZD0001","msg_num":"M20","msg_num_seq":"A","msg_text":"001PR27110856N4857.1E00949.84495320309"}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563340,"usec":409354},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.246184,"noise_level":-16.726709,"freq_skew":-3.014536,"avlc":{"src":{"addr":"4BCD63","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10943A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":4}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563341,"usec":178821},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.717911,"noise_level":-16.710648,"freq_skew":-0.520121,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109C2A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":true,"rseq":4}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563341,"usec":182751},"freq":136975000,"burst_len_octets":85,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-5.391326,"noise_level":-16.686890,"freq_skew":-0.356775,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109C2A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":4,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":0,"rseq":2,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":64,"priority":14,"lifetime":20.000000,"flags":246,"pdu_id":346,"idrp":{"err":false,"pdu_type":1,"pdu_type_name":"Open","seq":1,"ack":1,"credit_offered":32,"credit_avail":4,"hold_time":900,"max_pdu_size":3000,"src_rdi":[71,0,39,65,69,88,83,0,64,113,124],"ribatts_set":[{"name":"ribatt","value":[{"name":"security","value":{"reg_id":[6,4,43,27,0,0]}}]}],"auth_mech":1,"auth_mech_name":"simple checksum"}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563342,"usec":719953},"freq":136975000,"burst_len_octets":129,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-5.366617,"noise_level":-16.673525,"freq_skew":-0.433328,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109C2A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"sseq":5,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":1,"rseq":3,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":64,"priority":14,"lifetime":20.000000,"flags":246,"pdu_id":347,"idrp":{"err":false,"pdu_type":2,"pdu_type_name":"Update","seq":2,"ack":1,"credit_offered":32,"credit_avail":3,"path_attributes":[{"name":"route","value":{"id":4,"localpref":0}},{"name":"security","value":{"reg_id":[6,4,43,27,0,0],"sec_info":[{"name":"supported_atsc_classes","value":["A","B","C","D","E","F","G","H"]}]}},{"name":"rd_path","value":[{"name":"rd_seq","value":[[71,0,39,65,69,88,83,0,64,113,124]]}]},{"name":"rd_hop_count","value":1},{"name":"capacity","value":13}],"nlri_list":[{"proto":"CLNP","prefix_len":88,"dst_prefix":[71,0,39,65,69,88,83,0,64,113,124]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563344,"usec":211292},"freq":136975000,"burst_len_octets":51,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.072937,"noise_level":-16.991011,"freq_skew":0.317505,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":5,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":5,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":0,"priority":11,"lifetime":32.000000,"flags":246,"pdu_id":707,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":52202,"sseq":4,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[87,87,234,198]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":4,"msg_ref":4,"timestamp":{"date":{"year":2025,"month":10,"day":27},"time":{"hour":11,"min":9,"sec":2}},"logical_ack":"required"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"WILCO","choice":"dM0NULL","data":{}}}]}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563344,"usec":984680},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.367844,"noise_level":-16.881138,"freq_skew":0.348121,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":false,"rseq":0,"unknown_proto":{"data":[33]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563344,"usec":996540},"freq":136975000,"burst_len_octets":16,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.691775,"noise_level":-16.778629,"freq_skew":0.239530,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":true,"rseq":0,"unknown_proto":{"data":[33,64,97]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563346,"usec":526713},"freq":136975000,"burst_len_octets":16,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.942794,"noise_level":-16.738455,"freq_skew":0.360057,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":false,"rseq":0,"unknown_proto":{"data":[33,65,97]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563346,"usec":535232},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.481143,"noise_level":-16.824116,"freq_skew":0.073958,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":4}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563346,"usec":535806},"freq":136975000,"burst_len_octets":17,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.630157,"noise_level":-16.818092,"freq_skew":0.221340,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":6,"sseq":4,"poll":false,"x25":{"err":false,"pkt_type":1,"pkt_type_name":"Receive Ready","chan_group":11,"chan_num":255,"rseq":1}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563346,"usec":537162},"freq":136975000,"burst_len_octets":15,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.127149,"noise_level":-16.806057,"freq_skew":0.676271,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2D4918","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":false,"rseq":6,"unknown_proto":{"data":[224,1]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563347,"usec":238252},"freq":136975000,"burst_len_octets":82,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-4.841969,"noise_level":-16.740158,"freq_skew":0.398363,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":7,"sseq":4,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":3,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":32.000000,"flags":246,"pdu_id":708,"cotp":{"pdu_list":[{"err":false,"tpdu_code":208,"tpdu_code_descr":"Connect Confirm","extended":false,"src_ref":84,"dst_ref":52378,"credit":1,"proto_class":4,"options":0,"use_extended_pdu_formats":false,"variable_part_params":[{"name":"tpdu_size","value":1024},{"name":"called_responding_transport_selector","value":[22,1]},{"name":"calling_transport_selector","value":[101,109]},{"name":"priority","value":3},{"name":"ack_time_ms","value":1000},{"name":"inactivity_timer_ms","value":360000},{"name":"additional_options","value":[0]},{"name":"atn_checksum","value":[91,180,71,56]}]}],"x225_spdu":{"spdu_id":240,"spdu_type":"Short Accept","x227_apdu":{"acse_apdu":{"choice":"aare","data":{"assoc_response":{"app_ctx_name":[1,3,27,3,1],"assoc_result":{"value":0,"value_descr":"accept"}}}},"cpdlc":{}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563347,"usec":249184},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.064835,"noise_level":-16.840736,"freq_skew":0.218588,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":4,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":4,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":0,"priority":11,"lifetime":32.000000,"flags":246,"pdu_id":709,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":52202,"credit":3,"rseq":5,"variable_part_params":[{"name":"atn_checksum","value":[206,175,198,241]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563348,"usec":23053},"freq":136975000,"burst_len_octets":16,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.970893,"noise_level":-16.738701,"freq_skew":-0.329949,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109C2A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":false,"rseq":5,"unknown_proto":{"data":[193,225]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563348,"usec":29350},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.833228,"noise_level":-16.685163,"freq_skew":0.142552,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":5}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563348,"usec":792116},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.949207,"noise_level":-16.590792,"freq_skew":0.148290,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":true,"rseq":5}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563348,"usec":800894},"freq":136975000,"burst_len_octets":15,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.109378,"noise_level":-17.981455,"freq_skew":0.746804,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2D4918","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":false,"rseq":7,"unknown_proto":{"data":[1]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563350,"usec":345685},"freq":136975000,"burst_len_octets":62,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-4.985392,"noise_level":-17.657112,"freq_skew":-0.919739,"avlc":{"src":{"addr":"4CA82E","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2625D7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":5,"sseq":5,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":0,"rseq":0,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":249,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":52185,"credit":3,"rseq":8,"variable_part_params":[{"name":"atn_checksum","value":[253,235,96,61]}]},{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":52185,"sseq":7,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[216,85,180,145]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":7,"msg_ref":8,"timestamp":{"date":{"year":2025,"month":10,"day":27},"time":{"hour":11,"min":9,"sec":8}},"logical_ack":"notRequired"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"LOGICAL ACKNOWLEDGMENT","choice":"dM100NULL","data":{}}}]}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563350,"usec":347138},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.650074,"noise_level":-18.098557,"freq_skew":0.597902,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2D4918","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":6,"sseq":7,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":7,"rseq":0,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":0,"priority":11,"lifetime":20.000000,"flags":254,"pdu_id":304,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":63436,"credit":3,"rseq":7,"variable_part_params":[{"name":"atn_checksum","value":[218,164,107,88]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563351,"usec":68172},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.581443,"noise_level":-18.185804,"freq_skew":-0.815481,"avlc":{"src":{"addr":"4CA82E","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2625D7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":6}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563351,"usec":823532},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-4.913894,"noise_level":-18.136604,"freq_skew":0.338987,"avlc":{"src":{"addr":"3C48EB","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1098FA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":false,"rseq":0,"unknown_proto":{"data":[33]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563351,"usec":832650},"freq":136975000,"burst_len_octets":47,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-5.213001,"noise_level":-18.101631,"freq_skew":-0.163760,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109C2A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":4,"sseq":5,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":3,"more":false,"reasm_status":"skipped","esis":{"err":false,"pdu_type":4,"pdu_type_name":"IS Hello","hold_time":65535,"net":[71,0,39,65,69,88,83,0,64,113,124,0,1,0,0,0,0,0,1,0]}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563354,"usec":147639},"freq":136975000,"burst_len_octets":44,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.681020,"noise_level":-17.786804,"freq_skew":1.459476,"avlc":{"src":{"addr":"3C6451","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":5,"sseq":6,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":3,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":0,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":61,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":52174,"credit":3,"rseq":5,"variable_part_params":[{"name":"flow_control","value":{"acked_tpdu_nr":5,"acked_subseq":0,"acked_credit":10}},{"name":"atn_checksum","value":[18,51,232,10]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563354,"usec":877544},"freq":136975000,"burst_len_octets":51,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.357184,"noise_level":-18.260416,"freq_skew":-1.073092,"avlc":{"src":{"addr":"4CA82E","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2625D7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":6,"sseq":6,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":1,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":250,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":52185,"sseq":8,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[66,186,253,120]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":8,"msg_ref":8,"timestamp":{"date":{"year":2025,"month":10,"day":27},"time":{"hour":11,"min":9,"sec":12}},"logical_ack":"required"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"WILCO","choice":"dM0NULL","data":{}}}]}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563355,"usec":658269},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.547315,"noise_level":-18.332550,"freq_skew":0.665026,"avlc":{"src":{"addr":"4D227D","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":254,"sseq":0,"rseq":0,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":0,"priority":14,"lifetime":50.000000,"flags":192,"pdu_id":2039,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":3,"ack":2,"credit_offered":5,"credit_avail":4}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563355,"usec":660861},"freq":136975000,"burst_len_octets":47,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.012883,"noise_level":-18.311071,"freq_skew":-0.389182,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F68A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":4,"rseq":2,"more":false,"reasm_status":"skipped","esis":{"err":false,"pdu_type":4,"pdu_type_name":"IS Hello","hold_time":30,"net":[71,0,39,65,69,88,83,0,64,113,124,0,1,0,0,0,0,0,1,0]}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563355,"usec":694839},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.226889,"noise_level":-18.349983,"freq_skew":-0.967794,"avlc":{"src":{"addr":"4CA82E","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2625D7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":0}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563356,"usec":431872},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":1,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.257458,"noise_level":-18.278444,"freq_skew":0.110127,"avlc":{"src":{"addr":"3C48EB","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1098FA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":2}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563356,"usec":434076},"freq":136975000,"burst_len_octets":59,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-5.572943,"noise_level":-18.271324,"freq_skew":-2.058801,"avlc":{"src":{"addr":"4B17FE","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Command","frame_type":"U","cmd":"XID","pf":true,"xid":{"err":false,"type":"XID_CMD_HO","type_descr":"Handoff Initiation","pub_params":[{"name":"param_set_id","value":"8885:1993"},{"name":"procedure_classes","value":[0,1]},{"name":"hdlc_options","value":[32,164,136]}],"vdl_params":[{"name":"param_set_id","value":"V"},{"name":"conn_mgmt","value":5},{"name":"xid_sequencing","value":{"seq":1,"retry":0}},{"name":"avlc_specific_options","value":[37]},{"name":"dst_airport","value":"LSZH"}]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563356,"usec":453986},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.387127,"noise_level":-18.172234,"freq_skew":-1.023934,"avlc":{"src":{"addr":"4CA82E","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2625D7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":7,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":3,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":251,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":52185,"credit":4,"rseq":9,"variable_part_params":[{"name":"atn_checksum","value":[113,139,91,45]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563357,"usec":201741},"freq":136975000,"burst_len_octets":15,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.006711,"noise_level":-18.109125,"freq_skew":-0.329474,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F68A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":false,"rseq":2,"unknown_proto":{"data":[97]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563357,"usec":207384},"freq":136975000,"burst_len_octets":42,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.568231,"noise_level":-18.053410,"freq_skew":1.035862,"avlc":{"src":{"addr":"4CAC1F","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":254,"sseq":6,"rseq":0,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":50.000000,"flags":192,"pdu_id":3714,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":79,"credit":1,"rseq":0,"variable_part_params":[{"name":"checksum","value":[144,81]},{"name":"flow_control","value":{"acked_tpdu_nr":0,"acked_subseq":0,"acked_credit":1}}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563357,"usec":211673},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.354533,"noise_level":-18.301859,"freq_skew":0.308482,"avlc":{"src":{"addr":"3C48EB","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1098FA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":3}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563357,"usec":953453},"freq":136975000,"burst_len_octets":47,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.303674,"noise_level":-18.878521,"freq_skew":-0.530297,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109C2A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":4,"sseq":5,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":3,"more":false,"reasm_status":"skipped","esis":{"err":false,"pdu_type":4,"pdu_type_name":"IS Hello","hold_time":65535,"net":[71,0,39,65,69,88,83,0,64,113,124,0,1,0,0,0,0,0,1,0]}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563357,"usec":973957},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.725315,"noise_level":-18.787395,"freq_skew":0.634932,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"23D837","type":"Ground station"},"cr":"Response","frame_type":"U","cmd":"XID","pf":true,"xid":{"err":false,"type":"XID_RSP_HO","type_descr":"Handoff Response","pub_params":[{"name":"param_set_id","value":"8885:1993"},{"name":"procedure_classes","value":[0,1]},{"name":"hdlc_options","value":[32,164,136]}],"vdl_params":[{"name":"param_set_id","value":"V"},{"name":"conn_mgmt","value":5},{"name":"xid_sequencing","value":{"seq":1,"retry":0}},{"name":"avlc_specific_options","value":[37]}]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563357,"usec":978065},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.785945,"noise_level":-18.749706,"freq_skew":-0.528494,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F68A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":4}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563357,"usec":979022},"freq":136975000,"burst_len_octets":80,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.774411,"noise_level":-18.749706,"freq_skew":0.536508,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"23D837","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":11,"pkt_type_name":"Call Request","chan_group":11,"chan_num":255,"calling_addr":"14005073","facilities":[{"name":"max_pkt_size","value":{"from_calling_dte":1024,"from_called_dte":1024}},{"name":"window_size","value":{"from_calling_dte":4,"from_called_dte":4}},{"name":"fast_select","value":true},{"name":"called_addr_extension","value":[140,83,73,84,0,0,1]}],"compression_options":19,"compression_algos":["LREF","LREF-CAN"],"esis":{"err":false,"pdu_type":4,"pdu_type_name":"IS Hello","hold_time":30,"net":[71,0,39,65,73,84,89,0,48,10,59,0,1,0,0,0,0,0,1,0]}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563357,"usec":984107},"freq":136975000,"burst_len_octets":44,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.843774,"noise_level":-18.704695,"freq_skew":0.584776,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"23D837","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":1,"sseq":0,"poll":false,"acars":{"err":false,"crc_ok":true,"more":false,"reg":"..IADVH","mode":"2","label":"Q0","blk_id":"0","ack":"!","flight":"AZ0000","msg_num":"S62","msg_num_seq":"A","msg_text":""}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563358,"usec":707248},"freq":136975000,"burst_len_octets":80,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.657827,"noise_level":-18.682787,"freq_skew":0.334830,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"23D837","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":11,"pkt_type_name":"Call Request","chan_group":11,"chan_num":255,"calling_addr":"14005073","facilities":[{"name":"max_pkt_size","value":{"from_calling_dte":1024,"from_called_dte":1024}},{"name":"window_size","value":{"from_calling_dte":4,"from_called_dte":4}},{"name":"fast_select","value":true},{"name":"called_addr_extension","value":[140,83,73,84,0,0,1]}],"compression_options":19,"compression_algos":["LREF","LREF-CAN"],"esis":{"err":false,"pdu_type":4,"pdu_type_name":"IS Hello","hold_time":30,"net":[71,0,39,65,73,84,89,0,48,10,59,0,1,0,0,0,0,0,1,0]}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563360,"usec":241880},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.016022,"noise_level":-19.222080,"freq_skew":0.467601,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"23D837","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":2}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563360,"usec":244796},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.309602,"noise_level":-19.198286,"freq_skew":-1.104079,"avlc":{"src":{"addr":"4CA82E","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2625D7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":7,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":3,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":251,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":52185,"credit":4,"rseq":9,"variable_part_params":[{"name":"atn_checksum","value":[113,139,91,45]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563362,"usec":495202},"freq":136975000,"burst_len_octets":47,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.319424,"noise_level":-18.765715,"freq_skew":-0.617145,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109C2A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":4,"sseq":5,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":3,"more":false,"reasm_status":"skipped","esis":{"err":false,"pdu_type":4,"pdu_type_name":"IS Hello","hold_time":65535,"net":[71,0,39,65,69,88,83,0,64,113,124,0,1,0,0,0,0,0,1,0]}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563362,"usec":498494},"freq":136975000,"burst_len_octets":44,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.609221,"noise_level":-18.750656,"freq_skew":1.285097,"avlc":{"src":{"addr":"3C6451","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":6,"sseq":7,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":3,"rseq":4,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":62,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":63471,"credit":1,"rseq":0,"variable_part_params":[{"name":"flow_control","value":{"acked_tpdu_nr":0,"acked_subseq":0,"acked_credit":10}},{"name":"atn_checksum","value":[103,226,167,27]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563365,"usec":538908},"freq":136975000,"burst_len_octets":47,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.449269,"noise_level":-18.888041,"freq_skew":-0.573605,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F68A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":1,"sseq":4,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":5,"rseq":3,"more":false,"reasm_status":"skipped","esis":{"err":false,"pdu_type":4,"pdu_type_name":"IS Hello","hold_time":30,"net":[71,0,39,65,69,88,83,0,64,113,124,0,1,0,0,0,0,0,1,0]}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563367,"usec":88050},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.490356,"noise_level":-18.942904,"freq_skew":0.833812,"avlc":{"src":{"addr":"4D227D","type":"Aircraft","status":"Airborne"},"dst":{"addr":"1090BA","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":3}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563368,"usec":621549},"freq":136975000,"burst_len_octets":42,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.734681,"noise_level":-19.195097,"freq_skew":0.974343,"avlc":{"src":{"addr":"4CAC1F","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":1,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":254,"sseq":7,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":65,"priority":11,"lifetime":50.000000,"flags":192,"pdu_id":3715,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":52167,"credit":5,"rseq":19,"variable_part_params":[{"name":"checksum","value":[145,223]},{"name":"flow_control","value":{"acked_tpdu_nr":18,"acked_subseq":0,"acked_credit":4}}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563369,"usec":357570},"freq":136975000,"burst_len_octets":15,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.267721,"noise_level":-19.318789,"freq_skew":-0.173749,"avlc":{"src":{"addr":"407569","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Selective Reject","pf":false,"rseq":0,"unknown_proto":{"data":[33]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563370,"usec":137900},"freq":136975000,"burst_len_octets":84,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-5.543033,"noise_level":-19.181629,"freq_skew":-0.416356,"avlc":{"src":{"addr":"407569","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":5,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":215,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":63475,"credit":2,"rseq":3,"variable_part_params":[{"name":"atn_checksum","value":[155,90,11,94]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563370,"usec":137900},"freq":136975000,"burst_len_octets":84,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":1,"sig_level":-5.543033,"noise_level":-19.181629,"freq_skew":-0.416356,"avlc":{"src":{"addr":"407569","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":1,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":6,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":216,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":63475,"sseq":1,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[73,237,244,218]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":1,"msg_ref":3,"timestamp":{"date":{"year":2025,"month":10,"day":27},"time":{"hour":11,"min":9,"sec":28}},"logical_ack":"notRequired"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"LOGICAL ACKNOWLEDGMENT","choice":"dM100NULL","data":{}}}]}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563370,"usec":895528},"freq":136975000,"burst_len_octets":51,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.507762,"noise_level":-19.056063,"freq_skew":-0.351558,"avlc":{"src":{"addr":"407569","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":7,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":217,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":63475,"sseq":2,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[204,0,169,79]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":2,"msg_ref":2,"timestamp":{"date":{"year":2025,"month":10,"day":27},"time":{"hour":11,"min":9,"sec":29}},"logical_ack":"notRequired"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"LOGICAL ACKNOWLEDGMENT","choice":"dM100NULL","data":{}}}]}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563370,"usec":897546},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.143200,"noise_level":-19.032721,"freq_skew":-0.152307,"avlc":{"src":{"addr":"493033","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2625D7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":7}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563372,"usec":453428},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.840460,"noise_level":-18.563833,"freq_skew":0.404253,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Response","frame_type":"U","cmd":"DM","pf":false,"unknown_proto":{}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563373,"usec":185612},"freq":136975000,"burst_len_octets":84,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-5.739255,"noise_level":-18.288481,"freq_skew":-0.510263,"avlc":{"src":{"addr":"407569","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":5,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":215,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":63475,"credit":2,"rseq":3,"variable_part_params":[{"name":"atn_checksum","value":[155,90,11,94]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563373,"usec":185612},"freq":136975000,"burst_len_octets":84,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":1,"sig_level":-5.739255,"noise_level":-18.288481,"freq_skew":-0.510263,"avlc":{"src":{"addr":"407569","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":1,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":6,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":216,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":63475,"sseq":1,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[73,237,244,218]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":1,"msg_ref":3,"timestamp":{"date":{"year":2025,"month":10,"day":27},"time":{"hour":11,"min":9,"sec":28}},"logical_ack":"notRequired"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"LOGICAL ACKNOWLEDGMENT","choice":"dM100NULL","data":{}}}]}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563373,"usec":935557},"freq":136975000,"burst_len_octets":51,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-5.619153,"noise_level":-18.274227,"freq_skew":-0.179322,"avlc":{"src":{"addr":"407569","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":7,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":66,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":217,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":63475,"sseq":2,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[204,0,169,79]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":2,"msg_ref":2,"timestamp":{"date":{"year":2025,"month":10,"day":27},"time":{"hour":11,"min":9,"sec":29}},"logical_ack":"notRequired"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"LOGICAL ACKNOWLEDGMENT","choice":"dM100NULL","data":{}}}]}}}}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563373,"usec":949001},"freq":136975000,"burst_len_octets":59,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.478435,"noise_level":-18.146990,"freq_skew":-2.207731,"avlc":{"src":{"addr":"4B17FE","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Command","frame_type":"U","cmd":"XID","pf":true,"xid":{"err":false,"type":"XID_CMD_HO","type_descr":"Handoff Initiation","pub_params":[{"name":"param_set_id","value":"8885:1993"},{"name":"procedure_classes","value":[0,1]},{"name":"hdlc_options","value":[32,164,136]}],"vdl_params":[{"name":"param_set_id","value":"V"},{"name":"conn_mgmt","value":5},{"name":"xid_sequencing","value":{"seq":1,"retry":2}},{"name":"avlc_specific_options","value":[37]},{"name":"dst_airport","value":"LSZH"}]}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563374,"usec":719659},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":1,"octets_corrected_by_fec":0,"idx":0,"sig_level":-6.163058,"noise_level":-17.973309,"freq_skew":-0.266249,"avlc":{"src":{"addr":"407569","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":4}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563376,"usec":987179},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.847585,"noise_level":-17.498177,"freq_skew":-0.392617,"avlc":{"src":{"addr":"40717C","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10F68A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":5}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563381,"usec":560848},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.668158,"noise_level":-16.590050,"freq_skew":0.506419,"avlc":{"src":{"addr":"7816B5","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA5A","type":"Ground station"},"cr":"Response","frame_type":"U","cmd":"DM","pf":false,"unknown_proto":{}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563388,"usec":412148},"freq":136975000,"burst_len_octets":44,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-4.813970,"noise_level":-17.078156,"freq_skew":0.728446,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"23D837","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":0,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":0,"priority":11,"lifetime":20.000000,"flags":254,"pdu_id":305,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":63436,"credit":3,"rseq":7,"variable_part_params":[{"name":"flow_control","value":{"acked_tpdu_nr":6,"acked_subseq":0,"acked_credit":10}},{"name":"atn_checksum","value":[218,44,206,190]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563389,"usec":185957},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.795341,"noise_level":-16.900055,"freq_skew":1.202898,"avlc":{"src":{"addr":"4BA8D0","type":"Aircraft","status":"Airborne"},"dst":{"addr":"26B117","type":"Ground station"},"cr":"Command","frame_type":"S","cmd":"Receive Ready","pf":true,"rseq":2}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563393,"usec":12084},"freq":136975000,"burst_len_octets":44,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.078228,"noise_level":-16.891363,"freq_skew":0.614520,"avlc":{"src":{"addr":"300A3B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"23D837","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":0,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":0,"priority":11,"lifetime":20.000000,"flags":254,"pdu_id":305,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":63436,"credit":3,"rseq":7,"variable_part_params":[{"name":"flow_control","value":{"acked_tpdu_nr":6,"acked_subseq":0,"acked_credit":10}},{"name":"atn_checksum","value":[218,44,206,190]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563395,"usec":264343},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.149022,"noise_level":-16.910221,"freq_skew":2.154575,"avlc":{"src":{"addr":"4D2300","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109ACA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":1,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":1,"priority":11,"lifetime":50.000000,"flags":192,"pdu_id":1806,"cotp":{"pdu_list":[{"err":false,"tpdu_code":128,"tpdu_code_descr":"Disconnect Request","extended":false,"src_ref":2,"dst_ref":89,"disc_reason_code":0,"disc_reason":"Reason not specified","variable_part_params":[{"name":"checksum","value":[76,8]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563399,"usec":848292},"freq":136975000,"burst_len_octets":96,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.732188,"noise_level":-16.406782,"freq_skew":1.298309,"avlc":{"src":{"addr":"4BA8D0","type":"Aircraft","status":"Airborne"},"dst":{"addr":"26B117","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":2,"poll":false,"acars":{"err":false,"crc_ok":true,"more":false,"reg":".TC-JFP","mode":"2","label":"24","blk_id":"9","ack":"!","flight":"TKJ80D","msg_num":"M79","msg_num_seq":"A","msg_text":" /252710/1109/J80D/28891/N 46.992/E 9.560/52/1138/"}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563399,"usec":854891},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.342181,"noise_level":-17.421267,"freq_skew":1.067454,"avlc":{"src":{"addr":"3C7428","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"sseq":2,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":7,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":64,"priority":14,"lifetime":20.000000,"flags":246,"pdu_id":230,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":3,"ack":4,"credit_offered":32,"credit_avail":4}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563400,"usec":634906},"freq":136975000,"burst_len_octets":42,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-5.238971,"noise_level":-17.248711,"freq_skew":1.162669,"avlc":{"src":{"addr":"4CAECA","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10FA7A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":7,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":0,"rseq":5,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":1,"priority":11,"lifetime":50.000000,"flags":192,"pdu_id":6633,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":52296,"credit":2,"rseq":2,"variable_part_params":[{"name":"checksum","value":[221,58]},{"name":"flow_control","value":{"acked_tpdu_nr":1,"acked_subseq":0,"acked_credit":1}}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563400,"usec":638300},"freq":136975000,"burst_len_octets":89,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.722661,"noise_level":-17.223436,"freq_skew":-0.042012,"avlc":{"src":{"addr":"896181","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10935A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"sseq":3,"poll":false,"acars":{"err":false,"crc_ok":true,"more":false,"reg":".A6-EEB","mode":"2","label":"B6","blk_id":"7","ack":"!","flight":"EK011M","msg_num":"J35","msg_num_seq":"A","msg_text":"/DXBEGEK.ADS.A6-EEB0721E22834DD832209581FC19F","arinc622":{"msg_type":"adsc_msg","crc_ok":true,"gs_addr":"DXBEGEK","air_addr":".A6-EEB","adsc":{"tags":[{"basic_report":{"lat":47.648563,"lon":9.292717,"alt":12832,"ts_sec":598.000000,"pos_accuracy_nm":0.050000,"nav_redundancy":true,"tcas_avail":true}}],"err":false}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563400,"usec":639444},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.447584,"noise_level":-18.180929,"freq_skew":1.184838,"avlc":{"src":{"addr":"3C7428","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":3}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563402,"usec":898833},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.657561,"noise_level":-17.727995,"freq_skew":-0.014247,"avlc":{"src":{"addr":"896181","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10935A","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":4}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563402,"usec":901654},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.316166,"noise_level":-18.413584,"freq_skew":1.409492,"avlc":{"src":{"addr":"3C7428","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":7,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":64,"priority":14,"lifetime":20.000000,"flags":246,"pdu_id":230,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":3,"ack":4,"credit_offered":32,"credit_avail":4}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563403,"usec":664422},"freq":136975000,"burst_len_octets":96,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.661642,"noise_level":-18.284304,"freq_skew":1.463305,"avlc":{"src":{"addr":"4BA8D0","type":"Aircraft","status":"Airborne"},"dst":{"addr":"26B117","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":2,"poll":false,"acars":{"err":false,"crc_ok":true,"more":false,"reg":".TC-JFP","mode":"2","label":"24","blk_id":"9","ack":"!","flight":"TKJ80D","msg_num":"M79","msg_num_seq":"A","msg_text":" /252710/1109/J80D/28891/N 46.992/E 9.560/52/1138/"}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563407,"usec":468991},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.314236,"noise_level":-17.815817,"freq_skew":2.235082,"avlc":{"src":{"addr":"4D2300","type":"Aircraft","status":"Airborne"},"dst":{"addr":"109ACA","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":4,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":2,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":1,"priority":11,"lifetime":50.000000,"flags":192,"pdu_id":1807,"cotp":{"pdu_list":[{"err":false,"tpdu_code":128,"tpdu_code_descr":"Disconnect Request","extended":false,"src_ref":2,"dst_ref":89,"disc_reason_code":0,"disc_reason":"Reason not specified","variable_part_params":[{"name":"checksum","value":[76,8]}]}]}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563407,"usec":484713},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.866078,"noise_level":-17.715080,"freq_skew":-2.874408,"avlc":{"src":{"addr":"4BCD63","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10943A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":5,"sseq":4,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":1,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":64,"priority":14,"lifetime":20.000000,"flags":246,"pdu_id":38,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":3,"ack":2,"credit_offered":32,"credit_avail":4}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563407,"usec":486754},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.193282,"noise_level":-17.695072,"freq_skew":1.246866,"avlc":{"src":{"addr":"3C7428","type":"Aircraft","status":"Airborne"},"dst":{"addr":"10910A","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":7,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":64,"priority":14,"lifetime":20.000000,"flags":246,"pdu_id":230,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":3,"ack":4,"credit_offered":32,"credit_avail":4}}}}}} {"vdl2":{"app":{"name":"dumpvdl2","ver":"2.3.0-967750b"},"t":{"sec":1761563408,"usec":248904},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.715579,"noise_level":-17.569416,"freq_skew":1.353150,"avlc":{"src":{"addr":"4BA8D0","type":"Aircraft","status":"Airborne"},"dst":{"addr":"26B117","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":3}}}