Re: Some calculations about GAIN, LNA, ATTENUATORS, COAX...
If you see no signs of overload with no LNA then leave it out. It saves power. You're greener or something like that. If you have nearby large signals from time to time the SAW filter in that LNA may help. You know your local conditions, I don't. So all I can do is conjecture and that's not what you want.toggle quoted messageShow quoted text
One caveat here - the S+N/N ratio you should test at is something on the order of 6 db to 9 dB to have the greatest sensitivity to overall sensitivity differences. Testing at 20 dB or 30 dB is not so good. Of course, testing at 50 dB is usually worthless.
On 2017-11-18 10:49, Ruben Navarro Huedo (EA5BZ) wrote: