After one more night, the total number of UNIQUE stations spotting my QRP ERP WSPR signals has reached 22 with reports last evening from PA0WMR (351km). I am now going to try the 15m spaced earth-electrodes on other bands.
Given more time I'd be assured of LOTS more spots especially from UK and Irish stations.
Showing posts with label pa0wmr. Show all posts
Showing posts with label pa0wmr. Show all posts
21 Jul 2012
472/500kHz transceive transverter
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| Rev C Transverter (one correction: o/p LPF cap 6n8, not 100n) |
Armed with the sensitivity data in the last post I have now modified my MF transverter to add the receive parts, without a preamp. I used the same scheme adopted in my old transverter to automatically switch through the 500kHz (or 472kHz) signal on receive directly to the FT817. Only 4 additional parts were needed to make it into a TX/RX transverter. As proof that the RX part is working I have just copied PA0WMR with a huge signal on OPERA Op4 with the signal passing through the transverter.
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