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10
Assembly Adjusted
A15 RF assembly
Related Performance Test
There is no related performance test for this adjustment.
Description
A voltmeter is connected to the spectrum analyzer IF INPUT with the
external mixer bias set to off. The bias is adjusted for a 0 Vdc output.
Figure 3-20
External Mixer Bias Adjustment Setup
Equipment
Chapter 3
. External Mixer Bias Adjustment
DVM ...................................................................................... 3456A
Adapters
Type BNC (f) to SMA (m) .............................................. 1250-1200
Type BNC (f) to dual banana plug ............................... 1251-2816
Cables
BNC, 122 cm (48 in) ........................................................... 10503A
Manual Adjustment Procedures
10 . External Mixer Bias Adjustment
145
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