I meant OFF and not ON for the internal preamp. I don't use internal preamp
ON.
The issue is most internal preamps are not designed for 160m, they need to
cover up to 50 MHz Even the ICOM Norton preamp does not have the muscle to
handle the signals level on 160m. If you turn << OFF >> you
>>
A 0.5 dB noise figure front end amplifier with NO other losses would produce
-149.5 dB MDS. That is the absolute maximum MDS sensitivity obtainable with
250 Hz BW and 0.5dB total input noise figure.
<<
Correct agree
>>
If we include the receiver's noise figure, 14.5 dBm gain would result is a
