[R-390] R-390A Operation Question

[Larry H]

Hi Tom,  The hissing noise that I heard from your recording sounds normal to me for a weak station (it increased when switching to 8kc and then more on 16kc).  
As for the distortion with the RF gain on max - that is normally an agc problem, especially receiving ssb.  Do you have the Dr. Langford '2 diode fix' installed for this?  If not, you could totally fix that with it and my correction to it.  I couldn't tell which agc speed you were using from the video, sometimes medium or fast works better.  Try all 3.
Good work on the R-390A.  Regards, Larry