[TenTec] Some NR Performance Measurements on the O-II

Grant Youngman nq5t at comcast.net
Sun Mar 12 12:14:59 EST 2006


 
> NR works very well at this setting but as you reduce your RF 
> gain, the NR begins to distort. So, there appears to be a 
> direct relationship between these two settings.

I did redo the SNR tests on 20 today.  The result there with a much better
band noise profile to work with was on the order of 20dB improvement.  I ran
most of the tests at 1Khz BW.  I'm not trying to overstate the case and
erred on the conservative side judging the meter readings.

So 10-12+ dB improvement in really lousy noise conditions, and 20dB or so in
clearly better conditions.

Grant/NQ5T




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