A4 Limiter Phase Adjustment - Agilent Technologies 8564EC Service Manual

Figure 3a-4 DC Log Adjustment Locations
Adjustments should be made with all of the shields on and only after
NOTE
allowing at least a 20 minute warmup.

A4 Limiter Phase Adjustment

1. Press
2. Connect the E4421B RF output to the spectrum analyzer 50Ω input.
3. Set the spectrum analyzer controls as follows:
Chapter 3
to turn the spectrum analyzer off. Remove the spectrum
LINE
analyzer cover and place the spectrum analyzer in the service
position as illustrated in
location.
Press to turn the spectrum analyzer on.
LINE
Center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 MHz
Span . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 Hz
Reference level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −10 dBm
dB/division . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 dB/DIV
Resolution bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . 300 kHz
IF ADJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF
Manual Adjustment Procedures: 3335A Source not Available
3a . DC Log Amplifier Adjustments
Figure 3a-3. See Figure 3a-4 for adjustment
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