{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074128,"usec":919995},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.147578,"noise_level":-15.606923,"freq_skew":-1.368772,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","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":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":467,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":3,"ack":3,"credit_offered":32,"credit_avail":4}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074129,"usec":696353},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.269447,"noise_level":-16.777176,"freq_skew":-1.430257,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":4}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074134,"usec":262005},"freq":136975000,"burst_len_octets":59,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.756927,"noise_level":-18.015808,"freq_skew":0.343638,"avlc":{"src":{"addr":"47A31A","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":4,"poll":false,"x25":{"err":false,"pkt_type":1,"pkt_type_name":"Receive Ready","chan_group":11,"chan_num":255,"rseq":2}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074134,"usec":262005},"freq":136975000,"burst_len_octets":59,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":1,"sig_level":-4.756927,"noise_level":-18.015808,"freq_skew":0.343638,"avlc":{"src":{"addr":"47A31A","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"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":68,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":550,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":10008,"credit":3,"rseq":4,"variable_part_params":[{"name":"flow_control","value":{"acked_tpdu_nr":3,"acked_subseq":0,"acked_credit":2}},{"name":"atn_checksum","value":[217,230,227,117]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074144,"usec":176128},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.676436,"noise_level":-19.096653,"freq_skew":1.088360,"avlc":{"src":{"addr":"76CCE1","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2B24B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":2}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074147,"usec":983865},"freq":136975000,"burst_len_octets":44,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.324363,"noise_level":-20.702612,"freq_skew":1.327051,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":4,"sseq":1,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":6,"rseq":1,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":651,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":9956,"credit":3,"rseq":7,"variable_part_params":[{"name":"flow_control","value":{"acked_tpdu_nr":6,"acked_subseq":0,"acked_credit":3}},{"name":"atn_checksum","value":[179,193,83,0]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074167,"usec":796291},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.138831,"noise_level":-18.153252,"freq_skew":-1.343580,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"sseq":6,"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":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":468,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":9915,"credit":3,"rseq":6,"variable_part_params":[{"name":"atn_checksum","value":[148,54,194,194]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074167,"usec":797180},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.972857,"noise_level":-18.471735,"freq_skew":-1.466580,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"sseq":6,"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":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":468,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":9915,"credit":3,"rseq":6,"variable_part_params":[{"name":"atn_checksum","value":[148,54,194,194]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074168,"usec":544728},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.987936,"noise_level":-18.550549,"freq_skew":-1.369329,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":0}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074176,"usec":941410},"freq":136975000,"burst_len_octets":103,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":0,"sig_level":-5.206449,"noise_level":-19.115883,"freq_skew":-1.406750,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":6,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":3,"rseq":2,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":471,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":9915,"sseq":5,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[253,97,20,205]}]}],"x227_apdu":{"acse_apdu":{"choice":"rlre","data":{"release_response":{"reason":{"value":0,"value_descr":"normal"}}}},"cpdlc":{"atc_downlink_message":{"header":{"msg_id":5,"msg_ref":5,"timestamp":{"date":{"year":2026,"month":6,"day":21},"time":{"hour":20,"min":36,"sec":15}},"logical_ack":"notRequired"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"WILCO","choice":"dM0NULL","data":{}}}]}}}}}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074176,"usec":941410},"freq":136975000,"burst_len_octets":103,"hdr_bits_fixed":0,"octets_corrected_by_fec":2,"idx":1,"sig_level":-5.206449,"noise_level":-19.115883,"freq_skew":-1.406750,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","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":4,"rseq":2,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":70,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":472,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":34962,"sseq":0,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[133,47,172,77]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":0,"timestamp":{"date":{"year":2026,"month":6,"day":21},"time":{"hour":20,"min":36,"sec":15}},"logical_ack":"required"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"CURRENT DATA AUTHORITY","choice":"dM99NULL","data":{}}}]}}}}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074177,"usec":709462},"freq":136975000,"burst_len_octets":17,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.063930,"noise_level":-19.338676,"freq_skew":-1.223220,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":1,"pkt_type_name":"Receive Ready","chan_group":11,"chan_num":255,"rseq":4}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074177,"usec":710464},"freq":136975000,"burst_len_octets":35,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-4.989250,"noise_level":-19.306540,"freq_skew":-1.413156,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","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":255,"sseq":5,"rseq":4,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":473,"cotp":{"pdu_list":[{"err":false,"tpdu_code":192,"tpdu_code_descr":"Disconnect Confirm","extended":false,"src_ref":51405,"dst_ref":9915,"variable_part_params":[{"name":"atn_checksum","value":[124,138,71,19]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074180,"usec":736276},"freq":136975000,"burst_len_octets":17,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.085592,"noise_level":-18.488237,"freq_skew":-1.534382,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":0,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":1,"pkt_type_name":"Receive Ready","chan_group":11,"chan_num":255,"rseq":4}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074181,"usec":507122},"freq":136975000,"burst_len_octets":35,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.159550,"noise_level":-18.788069,"freq_skew":-1.197753,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","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":255,"sseq":5,"rseq":4,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":473,"cotp":{"pdu_list":[{"err":false,"tpdu_code":192,"tpdu_code_descr":"Disconnect Confirm","extended":false,"src_ref":51405,"dst_ref":9915,"variable_part_params":[{"name":"atn_checksum","value":[124,138,71,19]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074181,"usec":511085},"freq":136975000,"burst_len_octets":49,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.083441,"noise_level":-18.675480,"freq_skew":-1.296685,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":5,"poll":false,"x25":{"err":false,"pkt_type":1,"pkt_type_name":"Receive Ready","chan_group":11,"chan_num":255,"rseq":6}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074181,"usec":511085},"freq":136975000,"burst_len_octets":49,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":1,"sig_level":-5.083441,"noise_level":-18.675480,"freq_skew":-1.296685,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","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":6,"rseq":6,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":70,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":474,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":34962,"credit":2,"rseq":1,"variable_part_params":[{"name":"atn_checksum","value":[134,239,249,217]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074182,"usec":263805},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.785672,"noise_level":-18.530106,"freq_skew":-1.351825,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":7}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074183,"usec":34250},"freq":136975000,"burst_len_octets":83,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.036726,"noise_level":-18.486214,"freq_skew":-1.388665,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","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":7,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":70,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":475,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":34962,"credit":2,"rseq":2,"variable_part_params":[{"name":"atn_checksum","value":[219,188,44,132]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074183,"usec":34250},"freq":136975000,"burst_len_octets":83,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":1,"sig_level":-5.036726,"noise_level":-18.486214,"freq_skew":-1.388665,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":5,"sseq":7,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":0,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":70,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":476,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":34962,"sseq":1,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[192,59,176,108]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":1,"msg_ref":2,"timestamp":{"date":{"year":2026,"month":6,"day":21},"time":{"hour":20,"min":36,"sec":21}},"logical_ack":"notRequired"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"LOGICAL ACKNOWLEDGMENT","choice":"dM100NULL","data":{}}}]}}}}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074183,"usec":785099},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.388965,"noise_level":-18.792385,"freq_skew":-1.323608,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":1}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074187,"usec":600921},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.407099,"noise_level":-18.084843,"freq_skew":-0.317325,"avlc":{"src":{"addr":"45AB50","type":"Aircraft","status":"On ground"},"dst":{"addr":"2405B7","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]}]}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074187,"usec":607014},"freq":136975000,"burst_len_octets":80,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.708532,"noise_level":-17.946602,"freq_skew":-0.228796,"avlc":{"src":{"addr":"45AB50","type":"Aircraft","status":"On ground"},"dst":{"addr":"2405B7","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":"21325520","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":[71,0,39,65,74,84,68,0,69,171,80,0,1,0,0,0,0,0,1,0]}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074189,"usec":131918},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.925548,"noise_level":-17.731865,"freq_skew":-0.442168,"avlc":{"src":{"addr":"45AB50","type":"Aircraft","status":"On ground"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":1}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074193,"usec":682019},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.357253,"noise_level":-17.813929,"freq_skew":0.501010,"avlc":{"src":{"addr":"47A31A","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":5}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074197,"usec":504422},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.652984,"noise_level":-17.522881,"freq_skew":1.043117,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":2}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074225,"usec":684599},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.553558,"noise_level":-16.529194,"freq_skew":-0.506833,"avlc":{"src":{"addr":"45AB50","type":"Aircraft","status":"On ground"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":2}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074234,"usec":827193},"freq":136975000,"burst_len_octets":44,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.641190,"noise_level":-16.973434,"freq_skew":0.195283,"avlc":{"src":{"addr":"47A31A","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":4,"sseq":6,"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":68,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":551,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":10008,"credit":3,"rseq":4,"variable_part_params":[{"name":"flow_control","value":{"acked_tpdu_nr":3,"acked_subseq":0,"acked_credit":2}},{"name":"atn_checksum","value":[217,230,227,117]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074237,"usec":880049},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.523337,"noise_level":-17.353104,"freq_skew":0.340757,"avlc":{"src":{"addr":"47A31A","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","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":64,"priority":14,"lifetime":20.000000,"flags":246,"pdu_id":552,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":3,"ack":3,"credit_offered":32,"credit_avail":4}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074238,"usec":631095},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.160614,"noise_level":-18.238777,"freq_skew":0.358071,"avlc":{"src":{"addr":"47A31A","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":7}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074242,"usec":449331},"freq":136975000,"burst_len_octets":17,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.190334,"noise_level":-18.833040,"freq_skew":-1.137539,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":6,"sseq":1,"poll":false,"x25":{"err":false,"pkt_type":1,"pkt_type_name":"Receive Ready","chan_group":11,"chan_num":255,"rseq":0}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074243,"usec":203754},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.216753,"noise_level":-19.493357,"freq_skew":-1.079229,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":2}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074247,"usec":796713},"freq":136975000,"burst_len_octets":17,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.017878,"noise_level":-20.974319,"freq_skew":1.164304,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":5,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":1,"pkt_type_name":"Receive Ready","chan_group":11,"chan_num":255,"rseq":3}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074247,"usec":798402},"freq":136975000,"burst_len_octets":44,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.873168,"noise_level":-21.170879,"freq_skew":0.950104,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":6,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":7,"rseq":3,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":652,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":9956,"credit":3,"rseq":7,"variable_part_params":[{"name":"flow_control","value":{"acked_tpdu_nr":6,"acked_subseq":0,"acked_credit":3}},{"name":"atn_checksum","value":[179,193,83,0]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074249,"usec":327086},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.831505,"noise_level":-20.650074,"freq_skew":1.160949,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":7,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":0,"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":653,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":4,"ack":3,"credit_offered":3,"credit_avail":4}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074252,"usec":373861},"freq":136975000,"burst_len_octets":53,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.792675,"noise_level":-21.619007,"freq_skew":1.341054,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":7,"sseq":3,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":0,"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":653,"idrp":{"err":false,"pdu_type":4,"pdu_type_name":"Keepalive","seq":4,"ack":3,"credit_offered":3,"credit_avail":4}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074253,"usec":893418},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.301952,"noise_level":-22.102060,"freq_skew":1.062849,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":4}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074274,"usec":460710},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.399186,"noise_level":-21.360287,"freq_skew":-1.241725,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":3}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074275,"usec":209757},"freq":136975000,"burst_len_octets":17,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.093832,"noise_level":-21.177986,"freq_skew":-1.210855,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":7,"sseq":4,"poll":false,"x25":{"err":false,"pkt_type":1,"pkt_type_name":"Receive Ready","chan_group":11,"chan_num":255,"rseq":2}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074275,"usec":212511},"freq":136975000,"burst_len_octets":44,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.198776,"noise_level":-21.631487,"freq_skew":-1.324930,"avlc":{"src":{"addr":"479EE7","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","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":1,"rseq":2,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":70,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":477,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":34962,"credit":2,"rseq":2,"variable_part_params":[{"name":"flow_control","value":{"acked_tpdu_nr":2,"acked_subseq":0,"acked_credit":15}},{"name":"atn_checksum","value":[24,143,252,244]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074279,"usec":781210},"freq":136975000,"burst_len_octets":62,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.071894,"noise_level":-20.407310,"freq_skew":1.168254,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","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":1,"rseq":4,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":654,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":9956,"credit":3,"rseq":8,"variable_part_params":[{"name":"atn_checksum","value":[124,235,79,183]}]},{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":9956,"sseq":6,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[62,214,193,109]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":6,"msg_ref":7,"timestamp":{"date":{"year":2026,"month":6,"day":21},"time":{"hour":20,"min":37,"sec":58}},"logical_ack":"notRequired"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"LOGICAL ACKNOWLEDGMENT","choice":"dM100NULL","data":{}}}]}}}}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074280,"usec":556645},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.699265,"noise_level":-20.374968,"freq_skew":1.180940,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":6}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074285,"usec":121579},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.372387,"noise_level":-19.354061,"freq_skew":-0.498864,"avlc":{"src":{"addr":"45AB50","type":"Aircraft","status":"On ground"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":3}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074285,"usec":123095},"freq":136975000,"burst_len_octets":51,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-5.281334,"noise_level":-19.898096,"freq_skew":1.232844,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":1,"sseq":6,"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":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":655,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":9956,"sseq":7,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[171,4,127,157]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":7,"msg_ref":7,"timestamp":{"date":{"year":2026,"month":6,"day":21},"time":{"hour":20,"min":38,"sec":3}},"logical_ack":"required"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"WILCO","choice":"dM0NULL","data":{}}}]}}}}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074288,"usec":168033},"freq":136975000,"burst_len_octets":51,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.344604,"noise_level":-20.011898,"freq_skew":1.190334,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":1,"sseq":6,"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":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":655,"cotp":{"pdu_list":[{"err":false,"tpdu_code":240,"tpdu_code_descr":"Data","extended":false,"dst_ref":9956,"sseq":7,"req_of_ack":0,"eot":1,"reasm_status":"skipped","variable_part_params":[{"name":"atn_checksum","value":[171,4,127,157]}]}],"cpdlc":{"atc_downlink_message":{"header":{"msg_id":7,"msg_ref":7,"timestamp":{"date":{"year":2026,"month":6,"day":21},"time":{"hour":20,"min":38,"sec":3}},"logical_ack":"required"},"msg_data":{"msg_elements":[{"msg_element":{"choice_label":"WILCO","choice":"dM0NULL","data":{}}}]}}}}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074288,"usec":924116},"freq":136975000,"burst_len_octets":17,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.611432,"noise_level":-20.500385,"freq_skew":1.175573,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":2,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":1,"pkt_type_name":"Receive Ready","chan_group":11,"chan_num":255,"rseq":7}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074289,"usec":702226},"freq":136975000,"burst_len_octets":34,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-5.532398,"noise_level":-20.104687,"freq_skew":1.035070,"avlc":{"src":{"addr":"45C86B","type":"Aircraft","status":"Airborne"},"dst":{"addr":"283F57","type":"Ground station"},"cr":"Command","frame_type":"I","rseq":3,"sseq":0,"poll":false,"x25":{"err":false,"pkt_type":0,"pkt_type_name":"Data","chan_group":11,"chan_num":255,"sseq":3,"rseq":7,"more":false,"reasm_status":"skipped","clnp":{"err":false,"compressed":true,"local_ref_a":69,"priority":11,"lifetime":20.000000,"flags":246,"pdu_id":656,"cotp":{"pdu_list":[{"err":false,"tpdu_code":96,"tpdu_code_descr":"Data Ack","extended":false,"dst_ref":9956,"credit":4,"rseq":9,"variable_part_params":[{"name":"atn_checksum","value":[239,139,74,167]}]}]}}}}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074321,"usec":705839},"freq":136975000,"burst_len_octets":14,"hdr_bits_fixed":0,"octets_corrected_by_fec":1,"idx":0,"sig_level":-6.274738,"noise_level":-17.802618,"freq_skew":2.174142,"avlc":{"src":{"addr":"407FC2","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2848F7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":5}}}
{"vdl2":{"app":{"name":"dumpvdl2","ver":"2.5.0"},"t":{"sec":1782074323,"usec":231646},"freq":136975000,"burst_len_octets":13,"hdr_bits_fixed":0,"octets_corrected_by_fec":0,"idx":0,"sig_level":-4.219590,"noise_level":-17.407089,"freq_skew":-0.287260,"avlc":{"src":{"addr":"47A31A","type":"Aircraft","status":"Airborne"},"dst":{"addr":"2405B7","type":"Ground station"},"cr":"Response","frame_type":"S","cmd":"Receive Ready","pf":false,"rseq":0}}}