Topband: FT8 qrm

[Tim Shoppa]

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 at 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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