[time-nuts] Toy radiolocation and LORAN envelope

Brian Lloyd brian at lloyd.com
Tue May 27 16:35:09 EDT 2014


On Tuesday, May 27, 2014, Mark Sims <holrum at hotmail.com> wrote:

> I should mention that the circuit that I attached in the previous post
> does not output at 49.152 MHz   The output is the third (or fifth?)
> harmonic of the crystal frequency...
>

I have had very good luck with these 433 MHz TX modules. Easily received
with a ham 70cm SSB RX.


http://www.dx.com/p/433mhz-wireless-transmitter-module-superregeneration-for-arduino-green-149254?tc=USD&gclid=CM3Opqf4zL4CFVQFMgodPHEAlw#.U4T1YNq9KK1

Great because there is no need to tweak to make them operate and you can
easily do OOK to tx telemetry using a PIC or other uP.



-- 
Brian Lloyd
Lloyd Aviation
706 Flightline Drive
Spring Branch, TX 78070
brian at lloyd.com
+1.916.877.5067



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