20 Mar 2015
472kHz WSPR
In the last 2 weeks I have been spotted by 27 unique stations on this band. G3YXM (148km) is, I think, a new reporter earlier today. I shall leave 472kHz running, but don't expect any real DX until this evening. Still, it was good to get a report from G3YXM. I think my 5mW ERP from the earth-electrodes is a good test for stations listening on the band. Generally, if you can copy me at any decent distance, it proves your receive system is probably good enough. I know my RX system is capable of further improvement. On RX my FT817 is a bit deaf on 472kHz and I really should add a decent, high dynamic range preamp. Another 3-4dB sensitivity is possible I think.
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