[Elecraft] P3 query

[Jim Brown]

On 10/13/2012 10:32 PM, Ross Biggar wrote:
> I use my P3 for weak signal work.
> Is it possible to expand the scale, so say 150 to 120db is what I want to see,

You want exactly the opposite to see weak signals. The scale setting is 
the DIFFERENCE between the top and bottom of the display. 150-180 dB is 
very INSENSITIVE. You want a very SENSITIVE setting, but no so sensitive 
that it gets blown away by big signals and noise. I usually set my scale 
at 42 dB for contests, where there are a lot of very strong signals, and 
at 24 dB for routine operation.  I find that 24dB shows weak signals 
that I can't hear  It's VERY important that AVERAGING be ON, and set for 
it's highest setting.

A scale of perhaps 12-18 dB is about as low as I would go for showing 
very weak signals.

73, Jim K9YC