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Re: Topband: DX Window

To: Roger Parsons <ve3zi@yahoo.com>
Subject: Re: Topband: DX Window
From: Ashton Lee <Ashton.R.Lee@hotmail.com>
Date: Mon, 9 Dec 2013 08:06:33 -0700
List-post: <topband@contesting.com">mailto:topband@contesting.com>
The issue I believe is that many people’s 160 antennas are limited in frequency 
breadth.

There is really just one SSB contest.


On Dec 9, 2013, at 7:55 AM, Roger Parsons <ve3zi@yahoo.com> wrote:

> I agree with the remarks made by others regarding the DX window in the ARRL 
> contest.
> 
> I have been more concerned for many years about the various phone contests 
> which take place on 160m. During those contests phone operation takes place 
> right down to the bottom of the band, effectively making any CW operation 
> impossible during those weekends. Last year one ssb contest coincided with a 
> Dxpedtion to 9U - an exceptionally rare country on 160m. Whilst it is true 
> that there are only a few phone contests on the calendar, it is also true 
> that there are only a few weekends where exceptional conditions happen, 
> particularly during sunspot maxima.
> 
> 
> Frequency allocations on top band vary from country to country, but it is 
> generally true to say that the 'prime real estate' for phone operation is 
> from 1830 - 1850 kHz, with the 1810 - 1830 kHz segment being next most 
> desirable. Very few countries allow phone (or any) operation below 1810 kHz. 
> A significant number of countries (particularly North America) also allow 
> operation all the way up to 2 MHz..
> 
> Even in the busiest contests it is rare to hear any operation above 1900 kHz.
> 
> It would be nice if the regulations were changed (particularly in NA) to 
> limit the permissible frequencies for ssb, but I think we all know that will 
> never happen.
> 
> However, contest organisers can very easily define the allowable frequency 
> bands for each individual contest, and as has been mentioned by others this 
> is already done for some (particularly European) contests.
> 
> I would like to propose that phone contests disallow the use on ssb of any 
> frequency below a dial frequency of 1820 kHz. That leaves 8 kHz of 
> international frequencies for CW operation whilst still giving the ssb 
> contesters 32 kHz of the 'prime real estate' - and 150 kHz of the apparently 
> less desirable frequencies above 150 kHz.
> 
> I did suggest this on the contest reflector last year and was immediately 
> flamed, but I honestly think this would be an attainable and reasonable 
> compromise.
> 
> 73 Roger
> VE3ZI
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