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Re: Topband: Top Band and JT65

Subject: Re: Topband: Top Band and JT65
From: Brian Pease <>
Date: Sun, 14 May 2017 09:29:27 -0400
List-post: <">>
True enough, but time marches on. This is similar to the discussion about whether Columbus or Captain Cook would have used GPS if it had been available, or instead navigated without it just for the challenge. I have, in fact "navigated" once across the Atlantic using a sextant, but I made use of time signals and a programmable pocket calculator. I compared results to Satnav, the 1-satellite doppler predecessor to GPS. I guess this was the equivalent of using CW vs JT.

On 5/14/2017 8:25 AM, Mark K3MSB wrote:
Well said Victor.

I'm going to offend with this email no matter how nice I try to make it,
but I am trying to not be inflammatory. Here goes....

A human ear can not compete with a computer that extracts signals below the
noise level.

Being a software engineer my friends are somewhat amazed I have no interest
in RTTY or the JT modes. A few years ago they got me to do some RTTY
contests. Talk about boring. You set the computer up, spin the VFO to align
vertical cursor and push the correct buttons. Ditto with PSK31 only using a
waterfall display. Download the software, spin the VFO, and push the
buttons. As I told my friend “Even a caveman can do this”.

The JT modes certainly have their place as an advancement in communications
technology and capability. But from a competition perspective, machine and
human detected modes need to be strictly segregated.

My hat's off to those that get DXCC on 160 via CW and SSB. Sorry, but the
hat stays on for using digital to get “the last few”. Not crying over spilt
milk here; I have my TB DXCC and none of it is the JT modes.

The ARRL needs to address this, but I doubt they're going to. We've gotten
to the point where single band awards need to be split between human and
machine detected modes.

As posters in other threads have noted, the JT modes on TB will enable
those with limited real estate to work 160M DX easily. This is both a
blessing and a curse (as the saying goes). Yes, they may be able to use the
JT modes to “easily” work DX on 160, but compare them to the guys in the
same situation that work TB DX on CW / SSB and take years to do it.

73 Mark K3MSB

On Sun, May 14, 2017 at 4:39 AM, Victor Goncharsky via Topband <> wrote:

Both in SSB and AM cases the operator's skills and abilities are involved.
Even more of those are needed on CW.
On those JT modes an operator is just a computer accessory.

Воскресенье, 14 мая 2017, 5:41 +03:00 от Mike va3mw < >:
JT9 vs JT65 over CW

The same conversation happened when SSB started to gain strength over AM.


Mike va3mw

73, Victor Goncharsky US5WE/K1WE (UW5W in VHF contests, ex UB5WE), P.E.
UARL Technical and VHF Committies
DXCC Honor Roll #1 (Mixed, Phone), 9BDXCC, 8BWAS
DXCC card checker (160 meters).
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