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Re: Topband: Top Band and JT65

To: topband <>,, "Joe Taylor Ph.D." <>
Subject: Re: Topband: Top Band and JT65
From: Mike Waters <>
Date: Sun, 14 May 2017 22:36:17 -0500
List-post: <">>
Ok, what is the truth here? Is JT9 better than JT65 on 160m, or is it

On Sat, May 13, 2017 at 5:50 PM, Brian D G3VGZ <
> wrote:

> ... I find the better ability for JT65 to decode co-channel signals with
> its two pass decoding makes up for any 2dB improvement in decoding JT9. I
> also find a single static crash can take out JT9 decodes, more so than JT65.

That certainly got my attention! Has anyone else experienced this? *And if
so, what filter were you using: the wide SSB filter or a narrower CW
filter?? *I'm inclined to think that JT9 is superior to JT65 on 160m.

*But I have an open mind.*
I'm cc'ing this to K1JT himself, the Top Band Digital 160m Yahoo Group, and
the Topband reflector.

* Please share your experiences.*


73, Mike

> On 5/13/2017 3:27 PM, Mike Waters wrote:
> Why not JT9? It has a 2 dB improvement in S/N ratio on 160, while using
> only 1/10 of the bandwidth.
> I cannot understand why JT9 is used so little on 160 thru 20. JT65 is a
> VHF mode.
> [snip]
> --
> Brian D
> _________________
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