Caution To prevent connector damage, use an adapter (HP part number 1250-1462) as a connector saver for R CHANNEL IN.

NETWORK ANALYZER

IO dB

MIXER

UNDER TEST

3 dB

EXTERNAL

LO SOURCE

pg635e

Figure 3-21.

Connections for the Second Portion of Conversion Compression Measurement

8.To set the frequency offset mode Lo frequency, press:

9.To select the converter type, press:

10.‘Ib select a low-side Lo measurement conflguration, press:

In this low-side Lo, up converter measurement, the analyzer source frequency is offset lower than the receiver frequency. The analyzer source frequency can be determined from the following equation:

receiver frequency (800 MHz) - Lo frequency (600 MHz) = 200 MHz

330 Making Mixer Measurements

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Image 172
HP 8753E manual Mixer Under Test External LO Source