Friday, November 7, 2014

APRS transponder now with 1W output

Did some more work on the minimalistic APRS transponder. Made a test circuit board that allowed for adjusting component values. It now output 1Watt at 7.2V
UPDATE: Some pins have changed so this schematic is NOT compatible with the code posted earlier
Updated code HERE
Added a voltage regulator for 2LiPo cell operation.
Here is a quick video of my test setup transmitting 1W.

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