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Correcting generator level error above 1 GHz

 

Hello Erik
The level error of the output generator is +3dB at 1.5GHz, +6.5 dB at 4 GHz, +8dB at 5GHz. No error? reference is output level -30dBm at 3 GHz.
Is it possible to correct the flatness(10 points from 1 to 5.4 GHz)with a software update or by usb serial command?
 

What FW are you using?
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For more info on the tinySA go to https://tinysa.org/wiki/
 

What output mode where you using?
--
For more info on the tinySA go to https://tinysa.org/wiki/
 

FW 1.4028
mode highest accuracy
 

How do you measure the power?
Using a broadband power meter?
--
For more info on the tinySA go to https://tinysa.org/wiki/
 

Yes, I see, the spurious are higher than the output frequency and the power meter reads the level sum,
so will use a Ytf (Yig tuned filter) preselector to avoid this.
Anyway, using a calibrated spectrum analyzer with direct connection sma-sma there are? level errors.
Reference from 3 to 4 GHz -30dBm no errors(0dB),? from 4.5 GHz? to 5.4 GHz? are -2dB.
Tinysa is a very good test instrument ,? I ask if may be improved this frequency flatness by software.
 

Yes, using the "correction" command via serial over USB you can fully correct all frequency dependent input or output levels
You can experiment with the command but I still need to write good documentation on how to use this correction command

--
For more info on the tinySA go to https://tinysa.org/wiki/

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