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Re: Topband: FT8 qrm

To: topband@contesting.com
Subject: Re: Topband: FT8 qrm
From: Wes Stewart <wes_n7ws@triconet.org>
Date: Wed, 29 Nov 2017 05:29:55 -0700
List-post: <mailto:topband@contesting.com>
My scenario had the CW man on the frequency FIRST.

On 11/29/2017 4:54 AM, Tim Shoppa wrote:
A typical CW guy will hear FT8 or JT65 as a kinda whiny wobbly intermittent carrier. And will 
probably think it’s just some neighborhood switching power supply noise. He 
won’t CQ right on top of it (because he wants to hear a DX respondent) but he will 
have no problem firing up 500 Hz away.

But the digital guys e.g. FT8 have 2khz wide filters. So there is a fundamental 
assymetry here.

Tim N3QE


Sent from my VAX-11/780

On Nov 28, 2017, at 10:50 PM, Wes Stewart <wes_n7ws@triconet.org> wrote:

So what's the protocol when a CW man checks a frequency, hears nothing, sends a 
couple of QRL? and hears nothing and begins to run stations.  Then sometime 
later a guy running an imaginary mode...oops...sorry, FT8 shows up and wants to 
park on the CW man's frequency?  Who is to blame?  I'll answer my own question: 
the FT8 guy who is QRMing an occupied frequency.

Besides the FT8 guys can always resort to JTAlert to QSO via text messaging as 
one west African station apparently tried to do with me.

Wes  N7WS


On 11/28/2017 10:45 AM, Bryon Paul Veal NØAH wrote:
There were ops all over the FT8 segments, refused to even try and work them and 
some were some pretty rare mults for CQWWCW...gentleman agreements are of the 
past.....sucks

PAUL. N0aH

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