[Hallicrafters] SX-110 sideband reception

[w5htw]

The receiver will receive SSB by using the BFO.  

Using the older receivers without a product detector to receive sideband 
did not result in great performance.  The idea is to learn the BFO set 
points for LSB and USB, first of all.  When I used to use it, first, I 
would tune with the BFO off first, till the signal was strongest.  Then 
turn the AVC off (it probably goes off anyway when you select CW) and 
reduce the RF gain (or Sensitivity control) to avoid overloading. 
 Position the BFO in the center of its operation.   Then slowly rotate 
the BFO control to either side of that until the speech becomes 
intelligible.   On the lower frequencies, 75, 160 and 40 meters, lower 
sideband is used, while on all other frequencies upper sideband is used. 
 So the BFO should tune to one side for LSB and to the other side of its 
center point for USB.   It is necessary to use the RF - to 'ride the 
gain ' -  gain control as a 'volume' control (after setting the AF gain 
to a comfortable level.)

Most of the older receivers were not sufficiently stable enough to 
handle sideband without the need for frequent retuning.  A lot of that 
can be accomplished with the BFO control but as the receiver wanders a 
bit more, return the BFO to its initial best setting and retune the dial 
slightly.   I have successfully operated sideband with several of the 
older receivers that did not have product detectors, over the years, but 
it does take practice!

Good luck and have fun with the radio!

Ed


John Brooks wrote:

>I appreciate all of you bearing with the new guy
>here!!
>
>I have been trying to use my new (to me) SX-110 to
>receive ham transmissions.  It seems most voice
>transmissions are now using sideband.  I have had a
>certain amount of luck making these intelligible by
>switching to CW and adjusting the BFO pitch control. 
>This has just been trial and error (mostly error!).  I
>have never been told exactly how to do this method and
>am able to clean up only a small percentage of
>transmissions.  Can someone give me specifics on using
>the BFO method reliably for sideband reception?  Or is
>this receiver going to be good for AM and CW only?
>
>Thanks again for your help,
>John
>KG4JZT
>
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