Well, that seems about "half right". Yes you can tune in AM with SSB and
it works quite well. And yes if you tune off frequency you will get a
heterodyne from the carrier and the receiver "BFO" (carrier reinsertion)
beating against each other. But when you do that, the sidebands will be
out of tune, so having PBT does nothing to correct that. Stay tuned in
on frequency. PBT is ok to tune out an adjacent channel interferer. Or
of course you can select the opposite sideband.

David wrote:

On Fri, 3 Feb 2006 21:20:28 -0500, "Lenny"
wrote:



I have an R-75 with all the Kiwa mods.
Here's the scenario:
I'll tune to an international broadcast station on AM.
Then, if I switch to either USB or LSB and tune off the frequency either
way,
I'll hear a whine which gets higher in pitch as I move further away from the
center frequency.
Is this normal?
Can SSB only tune an AM station on it's exact frequency?
Thanks




Correct. That's why you have Dual PBT. These let you tune away from
dead center without creating beat frequencies.




--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."

"Follow The Money" ;-P