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April 25, 2015 23:29
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Sample parsing APRS Packets with Python
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| 2015-04-25 09:09:18 MST, 309 | |
| 2015-04-25 09:11:17 MST, 1089 | |
| 2015-04-25 09:13:16 MST, 1968 | |
| 2015-04-25 09:15:16 MST, 2855 | |
| 2015-04-25 09:17:16 MST, 3710 | |
| 2015-04-25 09:19:16 MST, 4588 | |
| 2015-04-25 09:21:15 MST, 5432 | |
| 2015-04-25 09:23:15 MST, 6317 | |
| 2015-04-25 09:25:15 MST, 7226 | |
| 2015-04-25 09:27:14 MST, 8148 | |
| 2015-04-25 09:27:15 MST, None | |
| 2015-04-25 09:29:14 MST, 9047 | |
| 2015-04-25 09:31:14 MST, 9940 | |
| 2015-04-25 09:33:14 MST, 10813 | |
| 2015-04-25 09:35:13 MST, 11674 | |
| 2015-04-25 09:37:14 MST, 12530 | |
| 2015-04-25 09:39:13 MST, 13271 | |
| 2015-04-25 09:41:14 MST, 14028 | |
| 2015-04-25 09:43:14 MST, 14682 | |
| 2015-04-25 09:45:14 MST, 15259 | |
| 2015-04-25 09:47:14 MST, 15894 | |
| 2015-04-25 09:49:14 MST, 16624 | |
| 2015-04-25 09:51:14 MST, 17314 | |
| 2015-04-25 09:53:15 MST, 18158 |
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| 2015-04-25 09:10:34 MST: W7ASU-2>S2TSXY,WIDE2-1,qAR,KE8DM:`*.FlfhO/'"<U}|!;!x||3 | |
| 2015-04-25 09:12:35 MST: W7ASU-2>S2TTPY,WIDE2-1,qAR,K7ACS:`*-qn\bO/'"Ej}|!<!x||3 | |
| 2015-04-25 09:16:35 MST: W7ASU-2>S2TTSR,WIDE2-1,qAR,K7ACS:`*,&m\jO/'"Y5}Byonics MT-1000|!>!x||3 | |
| 2015-04-25 09:18:35 MST: W7ASU-2>S2TTUR,WIDE2-1,qAR,KE8DM:`**|nHdO/'"bn}|!?!x||3 | |
| 2015-04-25 09:20:36 MST: W7ASU-2>S2TTVX,WIDE2-1,qAR,K7ACS:`*)mo*~O/'"l?}|!@!w||3 | |
| 2015-04-25 09:22:36 MST: W7ASU-2>S2TTWU,WIDE2-1,qAR,K7ACS:`*(No>yO/'"ul}|!A!w||3 | |
| 2015-04-25 09:22:37 MST: W7ASU-2>S2TTWU,CREBC-1*,WIDE2*,qAR,N6EAJ:`*(No>yO/'"ul}|!A!w||3<0xa9><0xdc> [Duplicate telemetry sequence, Delayed or out-of-order packet (sequence number)] | |
| 2015-04-25 09:24:36 MST: W7ASU-2>S2TUPU,WIDE2-1,qAR,K7ACS:`*'3o\gO/'#$z}Byonics MT-1000|!B!w||3 | |
| 2015-04-25 09:26:37 MST: W7ASU-2>S2TURV,WIDE2-1,qAR,KC0LL-10:`*arnR_O/'#/$}|!C!w||3 | |
| 2015-04-25 09:28:37 MST: W7ASU-2>S2TUVS,WIDE2-1,qAR,KD6GHX:`*`Pnz^O/'#92}|!D!v||3 | |
| 2015-04-25 09:30:37 MST: W7ASU-2>S2TUXQ,WIDE2-1,qAR,KB7KFC-1:`*^vp>iO/'#Bu}|!E!v||3 | |
| 2015-04-25 09:30:38 MST: W7ASU-2>S2TUXQ,CREBC-1*,WIDE2*,qAR,N6EAJ:`*^vp>iO/'#Bu}|!E!v||3R) [Duplicate telemetry sequence, Delayed or out-of-order packet (sequence number)] | |
| 2015-04-25 09:32:38 MST: W7ASU-2>S2TUYX,WIDE2-1,qAR,KE8DM:`*]/q\cO/'#M,}Byonics MT-1000|!F!v||3 | |
| 2015-04-25 09:32:39 MST: W7ASU-2>S2TUYX,CREBC-1*,WIDE2*,qAR,N6EAJ:`*]/q\cO/'#M,}Byonics MT-1000|!F!v||3<0xc2>0 [Duplicate telemetry sequence, Delayed or out-of-order packet (sequence number)] | |
| 2015-04-25 09:34:38 MST: W7ASU-2>S2TVVU,WIDE2-1,qAR,KC0LL-10:`*[0pzYO/'#V+}|!G!u||3 | |
| 2015-04-25 10:32:34 MST: W7ASU-2>S2TYRV,WIDE2-1,qAR,W7DXJ-3:`)@Zr mO/'#]]}|!H!p||3 | |
| 2015-04-25 10:34:35 MST: W7ASU-2>S2TYWX,WIDE2-1,qAR,KE8DM:`)>Pp\qO/'#EO}|!I!q||3 | |
| 2015-04-25 10:36:36 MST: W7ASU-2>S2UPQY,WIDE2-1,qAR,KE8DM:`)<wp*`O/'#/y}Byonics MT-1000|!J!q||3 | |
| 2015-04-25 10:40:37 MST: W7ASU-2>S2UPYS,WIDE2-1,qAR,KC0LL-10:`):6o4`O/'"eM}|!L!p||3 | |
| 2015-04-25 10:44:40 MST: W7ASU-2>S2UQUT,CHILDS,WIDE2*,qAR,KC0LL-10:`)8>m>KO/'"E6}Byonics MT-1000|!N!p||3 |
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| 2015-04-25 09:10:34 MST: W7ASU-2>S2TSXY,WIDE2-1,qAR,KE8DM:`*.FlfhO/'"<U}|!;!x||3 | |
| 2015-04-25 09:12:35 MST: W7ASU-2>S2TTPY,WIDE2-1,qAR,K7ACS:`*-qn\bO/'"Ej}|!<!x||3 | |
| 2015-04-25 09:16:35 MST: W7ASU-2>S2TTSR,WIDE2-1,qAR,K7ACS:`*,&m\jO/'"Y5}Byonics MT-1000|!>!x||3 | |
| 2015-04-25 09:18:35 MST: W7ASU-2>S2TTUR,WIDE2-1,qAR,KE8DM:`**|nHdO/'"bn}|!?!x||3 | |
| 2015-04-25 09:20:36 MST: W7ASU-2>S2TTVX,WIDE2-1,qAR,K7ACS:`*)mo*~O/'"l?}|!@!w||3 | |
| 2015-04-25 09:22:36 MST: W7ASU-2>S2TTWU,WIDE2-1,qAR,K7ACS:`*(No>yO/'"ul}|!A!w||3 | |
| 2015-04-25 09:24:36 MST: W7ASU-2>S2TUPU,WIDE2-1,qAR,K7ACS:`*'3o\gO/'#$z}Byonics MT-1000|!B!w||3 | |
| 2015-04-25 09:26:37 MST: W7ASU-2>S2TURV,WIDE2-1,qAR,KC0LL-10:`*arnR_O/'#/$}|!C!w||3 | |
| 2015-04-25 09:28:37 MST: W7ASU-2>S2TUVS,WIDE2-1,qAR,KD6GHX:`*`Pnz^O/'#92}|!D!v||3 | |
| 2015-04-25 09:30:37 MST: W7ASU-2>S2TUXQ,WIDE2-1,qAR,KB7KFC-1:`*^vp>iO/'#Bu}|!E!v||3 | |
| 2015-04-25 09:32:38 MST: W7ASU-2>S2TUYX,WIDE2-1,qAR,KE8DM:`*]/q\cO/'#M,}Byonics MT-1000|!F!v||3 | |
| 2015-04-25 09:34:38 MST: W7ASU-2>S2TVVU,WIDE2-1,qAR,KC0LL-10:`*[0pzYO/'#V+}|!G!u||3 | |
| 2015-04-25 10:32:34 MST: W7ASU-2>S2TYRV,WIDE2-1,qAR,W7DXJ-3:`)@Zr mO/'#]]}|!H!p||3 | |
| 2015-04-25 10:34:35 MST: W7ASU-2>S2TYWX,WIDE2-1,qAR,KE8DM:`)>Pp\qO/'#EO}|!I!q||3 | |
| 2015-04-25 10:36:36 MST: W7ASU-2>S2UPQY,WIDE2-1,qAR,KE8DM:`)<wp*`O/'#/y}Byonics MT-1000|!J!q||3 | |
| 2015-04-25 10:40:37 MST: W7ASU-2>S2UPYS,WIDE2-1,qAR,KC0LL-10:`):6o4`O/'"eM}|!L!p||3 | |
| 2015-04-25 10:44:40 MST: W7ASU-2>S2UQUT,CHILDS,WIDE2*,qAR,KC0LL-10:`)8>m>KO/'"E6}Byonics MT-1000|!N!p||3 |
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| 2015-04-25 09:10:34 MST, 790 | |
| 2015-04-25 09:12:35 MST, 1630 | |
| 2015-04-25 09:16:35 MST, 3397 | |
| 2015-04-25 09:18:35 MST, 4273 | |
| 2015-04-25 09:20:36 MST, 5136 | |
| 2015-04-25 09:22:36 MST, 6000 | |
| 2015-04-25 09:24:36 MST, 6924 | |
| 2015-04-25 09:26:37 MST, 7839 | |
| 2015-04-25 09:28:37 MST, 8763 | |
| 2015-04-25 09:30:37 MST, 9649 | |
| 2015-04-25 09:32:38 MST, 10577 | |
| 2015-04-25 09:34:38 MST, 11395 | |
| 2015-04-25 10:32:34 MST, 12082 | |
| 2015-04-25 10:34:35 MST, 9884 | |
| 2015-04-25 10:36:36 MST, 7924 | |
| 2015-04-25 10:40:37 MST, 4513 | |
| 2015-04-25 10:44:40 MST, 1578 |
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| import aprslib | |
| def main(infile): | |
| """docstring for main""" | |
| with open(infile) as f: | |
| for line in f: | |
| timestamp = line[:23] | |
| aprs_packet = line[24:].strip() | |
| try: | |
| aprs_data = aprslib.parse(aprs_packet) | |
| print "%s, %s" % (timestamp, aprs_data.get('altitude', None)) | |
| except (aprslib.ParseError, aprslib.UnknownFormat) as exp: | |
| #print aprs_packet | |
| pass | |
| if __name__ == '__main__': | |
| import sys | |
| main(sys.argv[1]) |
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I grabbed the raw packets from http://aprs.fi for both W7ASU-0 and W7ASU-2, cleaned up the duplicate and bad packets and saved them in the files:
w7asu-0-aprs-fi.txtandw7asu-2-aprs-fi.txt.Then I wrote the
w7asu-parse.py, which parses those files to generate thew7asu-2-decoded.txtandw7asu-2-decoded.txtoutput files, which are just timestamp followed by the altitude in meters. I will plot these at some point.