[Premium-Rx] Coommon problem in SSB RX Quality

[Doug Millar]

Dear Members,
	Nice discussion on receiver quality. I thought I'd throw in a bit of info.
	I did some research a while back on diode ring detectors used for SSB. Any 
of them that use point contact diodes (1N60's) will generally give pretty 
good distortion readings above 1khz. However, below that, the distortion 
goes up dramatically to 30% at 400hz. Replacing them with shottkey diodes 
such as 4082-2900's or any others used in radar detection smooths out the 
distortion nicely to below 1%. I think only the Heath SB104 and one or two 
others used shottkey's  in the detector. Of course a tube detector or IC 
type should be better. I haven't done any testing other than on SSB.
		Doug K6JEY