Figure 2-51 Sig Id At Mkr Performed On A True Signal - Agilent Technologies 8560E User Manual

Making Measurements
Example 8: External Millimeter Mixers (Unpreselected)
Figure 2-51
SIG ID AT MKR
Bias
The Agilent 11970A Series harmonic mixers mentioned in the previous
section do not require bias. Mixers requiring bias can also be used with
the 8560 E-Series and EC-Series. Bias minimizes the conversion loss of
these mixers; however, the bias must be adjusted for every frequency
where a measurement is made. Mixers requiring bias are connected as
shown in Figure 2-44 (with mixer bias supplied via the IF line).
To measure a signal, access a band as described above.
To activate the bias:
1. Press
2. Press the softkey corresponding to the bias polarity (positive or
3. Use the knob on the spectrum analyzer to adjust the bias and to
4. If your spectrum analyzer has Option 008 or a firmware revision
5. On most mixers, the optimum bias varies with frequency, so the bias
106
Performed on a True Signal
,
AUX CTRL EXTERNAL MIXER
negative) that your mixer requires.
peak the signal for maximum amplitude.
≤920528, activate the signal identification method that you desire.
should be adjusted for every signal measured.
, .
BIAS
Chapter 2