Hi -
I am using N5247A PNA-X, my problem is as follows:
In a Standard measurement, I perform the calibration as usual, once the calibration is done I proceed to change the frequency settings (the Cal was done for a wide-band frequency range) to apply the 2x multiplier (making sure all the frequencies ranges are correct and are covered by the performed cal). When I measure the received power into port 2 (port 1 is the source) this gives me the expected results; however, if I want to measure Gain, the measurement gives me unreasonable results. Any ideas why I can't measure gain, but I can measure the received power?
thanks :)
I am using N5247A PNA-X, my problem is as follows:
In a Standard measurement, I perform the calibration as usual, once the calibration is done I proceed to change the frequency settings (the Cal was done for a wide-band frequency range) to apply the 2x multiplier (making sure all the frequencies ranges are correct and are covered by the performed cal). When I measure the received power into port 2 (port 1 is the source) this gives me the expected results; however, if I want to measure Gain, the measurement gives me unreasonable results. Any ideas why I can't measure gain, but I can measure the received power?
thanks :)
if you just want to measure S21, then just copy the first channel into a new channel (this will make the new channel point to the same calibration as the original channel) and then turn off FOM and just add a S21 trace. if you had a 2-port calibration in the original channel, then your S21 will be corrected.