[600MRG] Receiver bandwidth for WSPR

[Kenneth G. Gordon]

On 21 Mar 2014 at 9:50, jrusgrove at comcast.net wrote:

> I don't know how Joe
> is making the calculation but I can tell you that bandwidth size does matter.

Most definitely true. Even in the very simple, and MOST annoying, case I am 
experiencing here: on 80 meters, my constant noise level at the moment is 
20db over S-9 when my receiver is in the "SSB bandwidth", about 2.6 Khz. 

When I drop the bandwidth to around 400 Hz, the noise level drops to S-7, a 
difference of almost 40 DB.

So, yes, bandwidth can make a HUGE difference in S/N ratio.

Ken W7EKB