I've been looking through the PowerSDR code to see how the RX meter signal
strength is computed. Based on what I've observed it appears to based on
the maximum signal found within the currently selected bandwidth. So if I'm
receiving two CW signals within the current bandwidth, it will show the
strength of the stronger signal. Am I reading this correctly? If so, I'd
like to add a new RX meter option that displays the true RMS power for the
selected bandwidth and increases the display resolution to 0.1 dB. I think
this addition will allow PowerSDR to accurately display the noise floor of
the receiver when the antenna port is terminated with a 50 ohm load. The
current implementation seems to give close, but not totally accurate results
(my results seem to be off by about 1-2 dB)
I have Microsoft Visual Studio .net 2003 and can build the source, but would
appreciate it if one of the PowerSDR gurus could help point me in the
correct direction in the source code. I think I've found most of the code,
but I'm not sure where the average signal is computed.
Thanks & 73,
Clay W7CE
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