[Boatanchors] 160 and 75 AM Freqs

[manualman at juno.com]

If 90% of all U.S. activity really was on these four frequencies, then
you might just as well kiss great AM activity goodbye and just operate
SSB. 3880, 3885, 3890 are each only separated by 5 KHz.  Given a nominal
6 KHz AM bandwidth (some run even more) heterodyne interference can be
horrible. Many of us learned this a long time ago, and invested in a VFO
and a tunable receiver to operate anywhere in the band our license class
allows us. Just like in the "good old days" tuning for a signal is not
that difficult. Limiting yourself to just four frequencies is just plain
silly and counterproductive. If running a net or an informal daily or
weekly gathering, it's not rocket science to define alternate frequencies
if the one you normally use is busy. For all classes, there is even tons
of vacant space above 3900 KHz to operate AM. 75 meters doesn't start at
3900 KHz. AM'ers have whined about the imaginary AM window frequencies
and adjacent interference for years. There ain't no such place. The
Antique Wireless Association has run a net on 3838 KHz for years. Many
Canadian amateurs operate AM around 3725 KHz. Many of use have
participated in some great AM QSO's between 3705 and 3715 KHz. I've even
heard some frequent QSO's below 3700 KHz. Obviously many of these AM
operators have found the usefulness of a VFO (or several additional
crystals), and a tunable receiver.

Pete, wa2cwa

On Thu, 31 Mar 2016 08:50:05 -0500 "David Stinson" <arc5 at ix.netcom.com>
writes:
> IIRC, 3870, 3880, 3885 and 3890 cover about 
> 90% of all U.S. AM activity on 75 meters 
> (when the SSSOBs aren't being... themselves).
> 
> On 160, there's 1885 KC.  Are there other 160 AM
> freqs that are widely used across the U.S.?