[Mich VHF UHF Society] Need help with a 2m calibration

[David DeVos]

Hi Chuck,
I measure low levels of power with a HP 432A power meter.  But it will measure power down to only -20dBm.  That's useful for low transmit power.
But how about using another receiver to check your signal source?  The S meter on my Flex 6500 is supposedly very well calibrated, and it reads out directly in dBm.  An empty antenna port on the Flex reads -113 dBm.  That would at least verify your signal source.  Problem is, I live in Grand Rapids...
If you're not super concerned about accuracy, I'd just use any known good receiver to check your signal source.  I attached a typical S meter chart to dBm chart I copied from Wikipedia.
 

Dave DeVos - KF8QL
Retired guy cell is 616-278-8068


 

    On Friday, June 21, 2019, 05:18:08 PM EDT, Chuck MacCluer <maccluer13 at gmail.com> wrote:  
 
 Before I take a Teamviewer session from Moscow to diagnose my SunSDR2's lack of gain on 2m, I need to verify the output of my Elecraft XG3 signal source at 144 MHz. 
Does anyone near to me have the equipment to verify the three levels of -- 107, -- 73, and -- 33 dBm?
I am just east of Lansing and could drive a hour or so to you.
Chuck w8mqw_______________________________________________
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