piopawlu.net General Purpose Blog by Piotr Pawluczuk – software, hardware and other not always useful stuff!

SBS1 Utils – obsolete

I'm finally ready to publish my utilities for SBS1 receiver. Please note these are still beta versions and therefore there might be some bugs left around. Below you have a list of all the tools together with a short description and command line for each of them. These utilities are meant for open source, freeware and research projects only. You must not use it commercially without my approval.

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sbs1mpx - A multiplexer for both Etherned and USB based SBS-1 receiver. It allows you to connect more than one PC and/or other utility to one radar box. Please note that a decent network connection is required as it does not use a queue yet.. so if sending goes slow it might cause SBS1 connection drop outs. This is by far the most stable and tested tool. I've been using it non-stop for more than a month and I haven't encountered a single crash. This tool is available for UNIX based systems only. If you want to use it on Windows please purchase a copy of Multi-EM from JetVision.de.

Download current version (2008-09-18):

• Linux x86 2.6.x - sbs1mpx_080918.tar.gz
• Other platforms - on request only

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sbs1hex - A simple data feeder which serves RAW hex-encoded ICAO messages one per line with timestamp. Use this if you want to implement data decoding yourself.

Download current version (2008-09-18):

• Linux x86 2.6.x - sbs1hex_080918.tar.gz
• Other platforms - on request only

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sbs1emu - A simple emulator which can replay files recorded with sbs1tcp/sbs1rec. When operating it behaves just like SBS-1 but it playbacks the same data over and over again. This utility is quite useful for debugging and developing decoders.

Download current version (2008-09-18):

• Linux x86 2.6.x - sbs1emu_080918.tar.gz
• Other platforms - on request only

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sbs1tcp - A decoder of Mode S/ADS-B messages. This utility is supposed to replace BaseStation TCP30003 data port, but for now it uses a custom data format. In future there will be a compatibility switch which will produce TCP30003 compatible output. Each line of the output consists of a few comma separated fields. Not all of them are fully implemented and as mentioned before there might be some errors in the decoded stream. Also more fields will come, so please make sure you handle it properly to maintain compatibility with later releases. New fields will be added after the "On ground flag".

Example: 1219054588,,49d056,49.276016,18.190472,43400,1440,CSA922,0,97,442,0,5bb,408,LF

1. Unix time stamp
2. Placeholder for the SBS1 internal timer
3. Mode S address
4. Latitude
5. Longitude
6. Altitude
7. Squawk
8. Call sign
9. Vertical speed
10. Track/Heading
11. Ground speed
12. On ground flag
13. Available fields bit flags - explanation will be published later
14. Modified fields bit flags - explanation will be published later
15. LF - Last Field marker

Download current version (2008-09-18):

• Linux x86 2.6.x - sbs1tcp_080918.tar.gz
• Other platforms - on request only