[AMRadio] Phone band expansion

Jan Erik Holm sm2ekm at telia.com
Sun Oct 15 01:08:07 EDT 2006

W7CE wrote:
> 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).
Actually 3775-3800 according to IARU band plan, however I guess
nobody in the US would care.
> 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
By the way, I frequently during the winter hear lots of US AM traffic 
around 3850-3900, some stations are S-9+ and it wouldn´t be a problem to 
work them if I just could transmitt up there.
In any case I´ll be looking forward to work some of you on 80m AM,
might be easier now when everything will be changed around.

73 Jim SM2EKM

More information about the AMRadio mailing list

This page last updated 21 Feb 2018.