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I was introduced to a useful facility yesterday by Bob Smith of YachtCom for testing SSB sets. You need to have a Windows computer connected to the internet. It involves the use of SDR (software determined radio). There are dozens of SDR "listening" stations around the world which a user can tune to a particular frequency and mode from a laptop. You can select a station location, tune it to a suitable frequency, then tune your SSB to the same frequency and transmit a test message whilst at the same time listening to your transmission being received by the remote station on your laptop.
Procedure: 1. select www.sdr.hu and review the stations available. Each one will show the number of users allowed (usually 3 or 4) and the number currently using the station 2. select a station within the distance you expect to be able to transmit 3. in the panel on the right side of the screen, enter the frequency on which you want to transmit (example 6227.0 kHz) and select the mode (example USB) 4. Tune you SSB to the same transmit frequency and mode (example 6227.0, USB) 5. Transmit a test message on your SSB and listen for the message being received via the SDR station on your laptop.
Yesterday we tested Al Shaheen's SSB very successfully on 6 and 8 Mhz bands talking to SDR stations in Switzerland, Holland and Sweden and hearing good reception on the laptop.
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