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[aprssig] 434 MHz tracker

Andrew Rich vk4tec at tech-software.net
Fri Dec 19 13:48:02 UTC 2008


I revisited an old project tonight.

434 MHz TX and GPS, easy radio module.

19k2 data rate

Sending "No lock" takes 9.6 ms on the busy pin, or 4.6 ms of actual data.

Sending 

VK4TEC-12>APRS,WIDE: <<UI>>:=2734.45S/15306.21E'SATS 03
RAW,27344551,S,153062152,E

Takes 76 ms on busy pin, or 44 ms of actual data.

The down side is the power out is only low, mW

Andrew VK4TEC

http://www.tech-software.net/glider_tx.php
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