Everything You Ever Wanted To Know About the JRC NRD 545
As near as I can tell, USB and LSB modes behave the same.
(But Were Afraid To Ask)
The following measurements are USB mode, at various bandwidth settings:
USB Mode on HF:
All the results look fairly resonable so far. Now let's turn on sharp filtering
(set user option 32 to 0 instead of 1) and see what happens:
4.50 kHz Sharp:
2.70 kHz Sharp:
1.80 kHz Sharp:
Yep, much sharper response. Probably more ringing and phase delay as well. But it could be
useful in some conditions I am sure.
Now how about USB mode when tuning VHF.
2.40 kHz VHF:
Again, some higher frequency noise and not as nice of a rolloff, the same situation with