29 Jun 2015

JT9-1 on 20m and 10m

As 10m and 6m were doing nothing much, I had another outing on JT9-1 on 20m QRP.  There were several stations active.  A look on PSK reporter showed that my CQ signals were crossing Europe (see map), but sadly no-one wanted a QSO. With QRP, I think the best strategy is to call others calling CQ. There seems plenty of space on JT9-1 on 20m.

A CQ call on 10m JT9-1 was not successful, although I have used this mode on 10m in the past. Unlike WSPR, JT9-1 is a true 2-way digital mode, with QSOs taking about 6 minutes to complete. WSPR works with weaker signals but needs 2 minute periods, whereas JT9-1 overs are just 1 minute.

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