20682Re: [perseus_SDR] Perseus SDR architecture
- Jul 2, 2013Thanks Roelof. You said > (I have been a teacher for 35 years, so I couldn't resist!) <Well, I have been a LEARNER for 72 years and I can’t resist trying to understand something...even when it overturns my original conceptions <g> I take no pride in asking dumb questions...nor am I embarrassed.Carl Sagan said “The first step to understanding is to ask the RIGHT questions.” I’m working on that. Thanks for your patience!Mark Durenberger
On the Road
I believe that you are mixing up the internal noise of a receiver and
reception of weak signals.
Without antenna connected, you observe the internal noise of the PERSEUS
The lower the internal noise is, the better the capability to receive weak
So, when you switch the attenuator off, the internal noise and noise floor
drops and received signals will be enhanced by the amount of attenuation.
Roelof Bakker, pa0rdt
(I have been a teacher for 35 years, so I couldn't resist!)
- << Previous post in topic Next post in topic >>