User`s guide

Agilent E6432A Microwave Synthesizer Users Guide 3-147
Soft Front Panel Help
IF Calibration (Option 300 Only)
To perform an IF calibration
1. Connect a 300 MHz signal to the front panel IF input connector.
2. Turn on the RF Output power of the synthesizer.
3. Set the frequency that a calibration is to performed at by adjusting
the IF Upconverter Calibration Frequency.
4. Set the amount of attenuation that is to be applied to the incoming
signal by adjusting the IF Input Calibration Attenuator to reduce
the incoming signal level to 0 dBm.
Any power level near 0 dBm (–8 dBm to + 16 dBm) can be calibrated so
that the synthesizer’s RF output is 0 dBm.
If a 300 MHz signal is too low or the level of the IF Upconverter
Calibration Attenuator is too high, an error is generated.
(IF calibration signal is too low. Check the input and output
connections and the level of the IF Upconverter Calibration
Attenuator.)
If a 300 MHz signal is too high or > 20 dBm, an error is also
generated. (IF calibration signal is too high. Reduce the input
power level or increase the the level of the IF Upconverter
Calibration Attenuator.)
To optimize IF input intermodulation products
After performing an IF Upconverter Calibration, adjust the IF Input
Calibration Attenuator to add an additional 14 dB of attenuation.
Adjust the ALC power up 14 dB to compensate. The result should be
the original desired output power with improved intermodulation
performance. For frequencies below 2 GHz, this attenuator adjustment
can be performed after a Power Search.
Related Topics
I/Q Calibration (Option UNG Only)