[R-390] The OLE receiver sensitivity test revisited

[wb5uom at hughes.net]

 Ok Now that there are some awake from the PING Test:

 I know that there is the 'standard' +30 plus year old method(s) of
 measuring receiver sensitivity on the R-390.

But, since I took delivery of my AeroFlex 3920 service monitor, (primarily
 for working on P25 digital radios) and after a couple of firmware upgrades
 to get the SSB generate fuction on track with the correct readings, and
seeing as how it now goes down to -138DBm, I though I could put it to use at 
home as well.

 In SSB mode and with a 1000cycle tone, I can hear it all the way down 
to -138DBm on my
 R-390 (I get down to various levels on my other receivers,but not that far,
 which tells me I could copy a CW signal pretty much down in the mud (If I
 had headphones on)

 My idea is to make a test tape of sorts into a .wav file on the pc and play 
it
 back thru the external mod input on the service monitor
 to see how far down I can go with VOICE.
Actually,I thought about recording an actual broadcast of whatever (AM / 
SSB )
and play that back thru to give me more realism, and crank the level down 
and see how I can go.

What the heck Ive got over $50K in the machine, might as well put it to use!

 Thoughts?

 David / WB5UOM