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Re: Topband: Top Band and JT65

To: topband <>
Subject: Re: Topband: Top Band and JT65
From: DXer <>
Date: Sat, 20 May 2017 15:10:25 -0400
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I'm most interested in hearing more about your conversation with K1JT about JT9. I've been away from the WSJTGroup for some time, and may have missed any new info about the mode.

In theory, JT9 should be the chosen LF mode. A couple of dBs more sensitve, and about 10% the BW of JT65. But the real performance, in real conditions, may not have followed.

JTDX is new, it's not incorporated into WSJT-X, it's a WSJT-X fork (I think this is the programming term) based on version 1.7 release 6462.

It does give some headaches to the WSJT-X developers, when people ask about JTDX in the WSJT group. There is a Yahoo group for JTDX only, and it should be used for support. There are enough differences between WSJT-X and JTDX now, that one cannot automatically transfer the experience of one to the other.

JTDX is also now introducing/testing a new mode called JT10.

73 de Vince, VA3VF

On 2017-05-20 2:48 PM, Mike Waters wrote:
I haven't even listened for anything digital in several years. But I need
to share some things soon --that K1JT himself told me via email--
concerning JT65 vs JT9 on 160. To make a long story short, I'm no longer
'preaching' against using JT65 in favor of JT9, as I have been in the past.
More later; I need to ask and reply to Joe Taylor's last email first.

My main interest in JT* is *occasionally* trying to work DX when the QRN is
bad here; perhaps calling CQ using several hundred watts when there's no JT
activity in North America. I tried that once or twice 2-3 years ago when I
saw JT activity in Australia, and no reply. (Maybe a sked would be better.)

I've never heard of JTDX until today. A Google search seems to imply it's
fairly new. One person talked about having JTDX incorporated into WSJT-X,
but I didn't read it.

Personally, I am not at all interested in using digital modes for
contesting, WAS, DXCC, or anything like that.

73, Mike
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