[600MRG] HF-MF band planning

[Edward R Cole]

Carl,

What are you talking about?  JT-65 is the same as CW, a single tone 
that changes audio frequency in steps.  No IMD.  In fact one can run 
a class-C amp with it, just like CW.  It does take up wider bandwidth 
but that is a separate issue from IMD.  If they are overdriving the 
amplifiers into clipping that would be bad.  You can do that with CW.

I have no idea how JT65 is being utilized on 160m, so there may be 
some turf battles going on.  On 630m JT-65 probably takes up too much 
spectrum and a NB mode like JT-9 may be more appropriate.

I would like to see a version or variant of psk-31 allowed for plain 
old "rag chew" texting.  RTTY may take too much bw.  Packet is certainly out.

CW should be included.  Is their enough room for WSPR?  Or should we 
develop a variant of WSJT that can do both communicating and 
propagation beaconing?  We need for Joe Taylor to be informed of this 
discussion.

73, Ed-KL7UW

At 11:55 AM 3/3/2014, Carl wrote:
>Id also suggest that JT-9 be used for all MF and lower HF bands as 
>it is far superior and the occupied bandwidth is much narrower than 
>JT-65 plus its attendent poor IMD from poorly adjusted equipment. It 
>has already ruined part of the 160M DX window on 1838.
>
>Carl
>KM1H
>
>
>----- Original Message ----- From: "Michael Mussler" <mmussler at wispertel.net>
>To: "Rudy Severns" <n6lf at epud.net>
>Cc: "600MRG" <600mrg at w7ekb.com>
>Sent: Monday, March 03, 2014 2:27 PM
>Subject: Re: [600MRG] HF-MF band planning
>
>
>>I made a similar response; including MF for their consideration.
>>
>>-Mike/12
>>
>>
>>
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73, Ed - KL7UW
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