6 Nov 2011

The "Chirpy" 14 parts QRP 10m transceiver video

This is a short video showing "Chirpy" (XBM10-2), my 14 component 28MHz CW transceiver. More details can be found at my website http://sites.google.com/site/g3xbmqrp/Home/xbm10_2.  Best DX is still IT9QAU/QRP but I am hoping for further soon. This is a simple project and, as with all very simple radio projects, it is a compromise between cost, complexity and performance. Nonetheless it DOES work remarkably well for something so simple. AM breakthrough is almost non-existent too, which was a bonus. Couple the audio into a PC rather than a crystal earpiece and  as a bonus you have an SDR receiver capable of copying from about 28.040-28.080kHz. Why the name Chirpy will be evident when you hear the keying!


Bert, PA1B said...

Hello Roger, So little parts and so much fun. thanks for the interesting video. 73, Bert

Anonymous said...

Love you YouTube clip of Chirpy.
Sounds like some of my homebrew CW
Rigs. I remember them chirpy Russian
Signals. Takes you down memory lane.


Anonymous said...

Last night, I heard my mama singing a song
Ooh-We, Chirpy, Chirpy, Cheep, Cheep
Woke up this morning and my mama was gone
Ooh-We, Chirpy, Chirpy, Cheep, Cheep
Chirpy, Chirpy, Cheep, Cheep, Chirp