Back in the very old days of SSB, which was before even I got my license,
by generating an SSB signal at 9 MHz and using a VFO covering 5.0 to 5.5,
one could take the upper mixing product to cover 20 meters (14.0 to 14.5),
and the lower mixing product to cover 75 meters (4.0 to 3.5).
As more modern radios evolved they kept the convention of using the lower
sideband below 9 MHz and the upper sideband above 9 MHz.
The USB on 40 meters idea does make sense. That's while it will be
adopted about the same time that the USA adopts the metric system.
73 - Jim K8MR
In a message dated 11/5/2009 10:16:58 A.M. Eastern Standard Time,
n2icarrl@gmail.com writes:
Not a bad idea, at all.
Where did this business about high bands being USB, and low bands being
LSB come
from, anyway ?
Are there any technical or legal reasons why we shouldn't switch to USB on
40
meters ?
73,
Steve, N2IC
kr2q@optimum.net wrote:
> Recently, there has been some comment (privately and otherwise) about
USA guys being
> "out of the band" on 40 SSB. Namely, how close to 7125 can you get, not
the "ooops"
> type of split event where you end up using the "wrong" VFO.
>
> Call me stupid (nevermind, that's been done before), but why are we
still using LSB on 40m?
>
> If we would all agree to use USB on 40 SSB, then we could snuggle up
against the bottom
> edge. Yes, this would cause the "reverse" problem at the top end, but
really, who is trying
> to run guys from up there? For most of us, our antennas aren't that
broad any way.
>
> In theory (or on paper, if you prefer), this would allow us to fit
stations in (well, maybe 2 more)
> in the valuable "lower half" of the phone band. And just think...one
less item to complain about.
>
> Using USB on 40...wow...talk about extreme "out of the box" thinking. I
wonder if that would
> qualify for the XTREME category in CQWW?
>
> de Doug KR2Q
>
> PS...this is actually a REAL suggestion.
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