Sep 9
Since quite a while I am running a Softrock 6.1 RXTX on 40m in receive mode only. It works on 80m too, but I do not have an antenna. Now I want to get this little thing I have built more than two years ago transmitting too. I have the receiver it working fine with several programs (Winrad, KGKSDR, Rocky etc). With a so called Virtual Audio Cable (VAC) which simulates a soundcard, I can cascade two programs like Winrad and WSPR. This already works fine and is sensitive enough.
Using a IQ testsoftware from M0KGK I could already run it with about 31 dBm (1,3w) output on 40m.


This is my little Software Defined Radio, the Softrock 6.1. Output power is about 1,3 watts. I already received a 5 watts station from Australia with on 40m it and my low dipole for 40m.

I still have a kit for the SR6.1 RXTX 40m/30m version. But I do not think that I will finish it. If you are interested in the kit, ask me please. The German Funkamateur Magazine will publish a Kit with a tunable SDR RXTX. This sounds to be a very interesting for me and may be a next project for me.

Posted by Christoph Petermann


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© Christoph Petermann DF9CY - 2017