x-Axis vs peak-blobs vs rx-meter

[oe3ide]

Hi,

maybe it is a silly question, but which values are represented on the x-axis and the peak-blobs. It seems to be not related to the rx-meter.
See yellow marked areas in the screenshot (right click => open picture in new tab for full-image)

Thanks & 73 Ernst

[I4LEC]

Hi Ernst,
it is refered to the bin bandwidth, which given the 26dB difference, should be set at 7.4Hz

10 log (2960/7.4) = 26

73, Clay

[NC3Z]

Great post by Scott a while ago with explanation.

https://apache-labs.com/community/viewt ... =itu#p2999

[oe3ide]

Thanks for the explanation !

73 Ernst

[NC3Z]

Just as an aside, since I reset my database and built it by hand again with the fast and furious pace of Ritchie's updates, I like to calibrate my S-Meter using the built in Cal tools. I use a Rohde & Schwarz sig gen and found that the stock S-meter and Spectrum call was off by .6 dB @ -73dB. Pretty damn good for no cal, but I still calibrated to be nuts on

Freq cal was off tad also, but WWV is always handy.