tag:blogger.com,1999:blog-9071048343455395511.post3078453629005978710..comments2024-03-24T22:03:31.205+00:00Comments on Roger G3XBM's (Mainly) Amateur Radio Blog: Second JT9-1 QSO todayRoger G3XBMhttp://www.blogger.com/profile/13673890140751539870noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-9071048343455395511.post-26129259353978116192014-07-27T22:52:01.527+01:002014-07-27T22:52:01.527+01:00Thanks Bas. May try 40m tomorrow.Thanks Bas. May try 40m tomorrow.Roger G3XBMhttps://www.blogger.com/profile/13673890140751539870noreply@blogger.comtag:blogger.com,1999:blog-9071048343455395511.post-32177015356969973982014-07-27T21:22:02.164+01:002014-07-27T21:22:02.164+01:00As far as I know the 40m freq. are correct for JT....As far as I know the 40m freq. are correct for JT. 73, BasPE4BAS, Bashttps://www.blogger.com/profile/12958141238330445285noreply@blogger.comtag:blogger.com,1999:blog-9071048343455395511.post-58385136039754166202014-07-27T20:59:53.508+01:002014-07-27T20:59:53.508+01:00I think 50MHz would be pushing the limits of JT9-1...I think 50MHz would be pushing the limits of JT9-1 here.<br />Roger G3XBMhttps://www.blogger.com/profile/13673890140751539870noreply@blogger.comtag:blogger.com,1999:blog-9071048343455395511.post-8746387202759057052014-07-27T20:58:50.985+01:002014-07-27T20:58:50.985+01:00I have used JT9-1 on 10m too in the past. Good poi...I have used JT9-1 on 10m too in the past. Good point about 1 min TX period too. Must give 10m a decent try again.Roger G3XBMhttps://www.blogger.com/profile/13673890140751539870noreply@blogger.comtag:blogger.com,1999:blog-9071048343455395511.post-86679822693914781492014-07-27T20:34:47.851+01:002014-07-27T20:34:47.851+01:00Roger,
The tone separation of JT9-1 is wider than ...Roger,<br />The tone separation of JT9-1 is wider than WSPR (1.736Hz vs. 1.4648Hz), and the shorter transmission lessens the effect of drift/doppler. I've had no problems at all operating on 10m when propagation allows.<br /><br />I've also had some success calling CQ on a 'dead' band (esp. 10m). There is only about 1dB difference between JT9-1 and WSPR so if there's WSPR activity then a QSO might be possible.<br />73, David G0LRDDavid (G0LRD)https://www.blogger.com/profile/11377879585873483008noreply@blogger.com