Re: [wsjt-devel] dB report and actual bandwidth

2021-04-12 Thread Gary McDuffie
> On Apr 11, 2021, at 8:30 PM, Andy Durbin wrote: > > This seems to imply that the noise being considered is the noise in the > actual receiver passband and not the total noise in a 2.5 kHz bandwidth. Andy - How is the program going to consider a frequency that isn’t being passed to it from

Re: [wsjt-devel] dB report and actual bandwidth

2021-04-12 Thread Bill Somerville
On 12/04/2021 03:30, Andy Durbin wrote: Would someone please point me to an explanation of how the dB report of a received FT8 signal is derived.  My recollection was that it was independent of the actual receiver bandwidth but simple experimentation shows that's not true.  Simply narrowing

[wsjt-devel] dB report and actual bandwidth

2021-04-11 Thread Andy Durbin
Would someone please point me to an explanation of how the dB report of a received FT8 signal is derived. My recollection was that it was independent of the actual receiver bandwidth but simple experimentation shows that's not true. Simply narrowing the receiver bandwidth on a signal of