On Fri, Sep 26, 2014 at 10:07:56AM +0100, Dr. David Kirkby (Kirkby Microwave Ltd) wrote:
> I don't understand the units of signal strength > > "The L1 carrier is spread over a 2 MHz bandwidth and its strength at the > Earth's surface is -130 dBm. Thermal noise power in the same bandwidth is > -111 dBm" > > Then goes on to talk about the signal being 20 dB below the noise. Hello David. It could be because there is a "process gain" associated in demodulating a spread spectrum signal. Best regards, Andrea Baldoni _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.