2- 35
Making Mixer Measurements
Phase or Group Delay Measurements
1. Set the LO source to the desired CW frequency of 1000 MHz and power level to 13 dBm.
2. Initialize the analyzer by pressing .
3. Set the analyzer’s LO frequency to match the frequency of the LO source by pressing:
4. From the front panel of the analyzer, set the desired receiver frequency and source output power by
pressing:
5. Connect the instruments as shown in Figure 2-24, placing a broadband "calibration" mixer (ZFM-4)
between PORT 1 and PORT 2.
CAUTION To prevent connector damage, use an adapter (part number 1250-1462) as a connector saver
for R CHANNEL IN.
Model Number Useful Frequency Range Group Delay
ANZAC MCD-123 0.03 to 3 GHz 0.5 ns
Mini-Circuits ZFM-4 dc to 1250 MHz 0.6 ns
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