[Hammarlund] HQ-129X, tuning LSB

[Todd Bigelow - PS]

John M. Trindle wrote:
<snip>

>However, I'm having a devil of a time tuning in ham traffic in the 75
>meter band.  I have good strong signals, but I can't get them clarified
>with the BFO.  It always sounds as if I'm on the wrong sideband.
>
>Any tips for tuning?  Am I out of alignment, and just unable to tune on
>the proper side of the signal?  Every so often, I *do* get oopyable
>voice... but no heterodyne so I'm pretty sure it's not AM.  I don't know
>if this is one of those "Single Wide Band" or DSB guys though.
>  
>
Back off the RF gain a bit, then proceed to the appropriate side of the 
signal to tune it. 40 m and below are generally LSB, 20 and up are 
generally USB. Takes a little getting used to and isn't something you'd 
want to to do get a signal tuned in quickly. With a bit of practice it's 
not too difficult. If I'm not sure I'll tune past the signal until it 
disappears, then tune back to it again, trying both sides until I find 
it. Riding the RF Gain control is key for moderate to strong signals.

Of course, this assumes you are indeed tuning in a SSB station. DSB 
isn't as picky to tune, either side works. Can't comment on the 'wide 
audio' SSB - they should just g to AM and do it right.

de Todd/'Boomer'  KA1KAQ