March 21, 2015
Low cost APRS !!
I had no transmitter module, to test my new Arduino sketch except the low
cost JMR-TX1 module. For my surprise it works like a charm and succeeded
to transmit packet frames without missing any, just like a robust FM transmitter
module !!! .
On spectrum analyzer I noticed a lot of noise, but a simple output filter can
boost using of this cheap low power module for more lab and field experiments.