[AMRadio] Phone band expansion


W7CE w7ce at curtiss.net
Sat Oct 14 17:44:20 EDT 2006


No problem Brian.  In fact I need to order another crystal from you.  My 
purpose was to make sure members of the group are aware of the 
long-established DX window from 3789 to 3800.  It is officially 3790 to 
3800, but has drifted down an extra kHz in the past few years (those DXers 
are are real bandwidth hogs -- a whopping 11 kHz for all of them).

For those interested, the window exists because for many years countries 
like Australia had limited phone capability in the U.S. phone band.  In 
Australia's case, I believe it was only from 3795 to 3800.  With the 
expansion of the U.S. phone band, that may eventually start changing. 
However, since a lot of DX on 80M is right at the noise level, it is nice to 
have a small window that is relatively free of rag-chewing and other non-DX 
related activity.  Also,  as we all know, the amount of force required to 
move a group of hams is very large.

I have heard talk of attempting NA to Eu AM QSOs in the window.  I don't 
have any problem with this.  DX is DX, no matter what mode is used.  I 
believe N7UA, with his 80M, 6 element wire yagi, is planning on trying AM 
with some Eu stations later this winter.  I hope to either have my Johnson 
Kilowatt fixed or my 20V-2 conversion completed by then so that I can join 
in.

73,
Clay  W7CE

----- Original Message ----- 
From: "Brian Carling" <bcarling at cfl.rr.com>
To: <amradio at mailman.qth.net>
Sent: Saturday, October 14, 2006 2:18 PM
Subject: Re: [AMRadio] Phone band expansion


> Sorry Clay - I cannot grant your wish.
>
> DX stations all ove rthe world buy crystals from me.
> Besides I only have ONE crystal on 3790 kHz.
> Perhaps sanctions would work? (grin!)
>
>> Brian,
>> As an active AMer and 75M DXer, I request that you please not offer 
>> crystals
>> within 10 KHz of the 75M DX window which is from 3789 to 3800.  Its a 
>> very
>> small window and many of the signals there are very weak.  We know how 
>> much
>> we hate it when SSB QSOs start up on top of our QSOs.  Let's not do the 
>> same
>> to the one portion of 75M where most of the operators are gentlemen who 
>> will
>> actually stand by so someone else can work a new country.
>>
>> 73,
>> Clay  W7CE
>>
>> ----- Original Message ----- 
>> From: "Brian Carling" <bcarling at cfl.rr.com>
>> To: "Discussion of AM Radio in the Amateur Service"
>> <amradio at mailman.qth.net>
>> Sent: Thursday, October 12, 2006 5:08 AM
>> Subject: Re: [AMRadio] Phone band expansion
>>
>>
>> > From:           Donald Chester <k4kyv at hotmail.com>
>> >
>> >> Once the expansion goes into effect, we should immediately commence AM
>> >> activity on the new frequencies, including the 3600-3700 kc/s Extra
>> >> segment.
>> >
>> > For those who would like them, I can offer FT243 crystals
>> > on the following lower frequencies:
>> >
>> > 3615, 3645, 3655, 3686, 3700 kHz
>> > 3702, 3703, 3705, 3721, 3790 kHz
>> > 3800, 3805, 3810, 3816.8, 3820 kHz
>> > 3825, 3830, 3837, 3840 kHz
>> >
>> > Brian, AF4K
>> >
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>
>
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