Low Power Srd Bias - Agilent Technologies 83620A Service Manual

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11. Low Power SRD Bias

Description and Procedure
he synthesizer is set to 10 GHz. hen the A9 pulse board MIN adjustment
sets the source voltage of the FE for the proper SRD bias level.
1. Connect the equipment as shown in Figure 3-21. Preset all instruments and
let them warm up for at least one hour.
Figure 3-21. Low Power RD Bias Adjustment etup
Equipment
DVM HP 3456A
2. On the synthesizer set:
.
CW 10 GHz
5 5 5
3. Set the DVM to measure DC volts.
0
4. Adjust A9R105 MIN (see Figure 3-22) for 0.54 V DC.
3-84 Adjustments HP 8360
Low Power RD Bias