|[AMRadio] Phone band expansion|
Jan Erik Holm
sm2ekm at telia.com
Sun Oct 15 01:08:07 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).
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.
> 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
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