5-19.
EXTERNAL MODULE LEVELING ADJUSTMENT
Reference
Performance Test:
None
Service Section:
RF
Section
Description
In this procedure, the OUT’s RF output is connected to an external detector and the detector’s output
is then connected to the OUT’s XTAL LEVELING input and a DVM. The OUT is then set to external
module leveling, 0 dBm and 10 dBin. At both levels, the OUT’s Cal Constants are adjusted for the
correct OVM reading and the correct POWER dBm DISPLAY reading.
DUT
DIGITAL VOLTMETER
Equipment
Digital Voltmeter (OVM)
HP 3456A
Detector, Positive
HP 8473C Option 003
Adapters:
APC 3.5 (f)
to APC
3.5 (f)
HP P/N 5061-5311
(required for HP 8340B only)
APC 3.5 (f) to Type N
(in)
HP P/N 1250-1 744
(required for HP 8341B only)
BNC (f) to Dual Banana
HP P/N 1251-2227
BNC Tee
HP P/N 1250-0781
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EXT
INPUT
ADAPTER
APC—3.5(f)
to APC—3.5(f)
(8340B ONLY)
BNC TEE
Figure 5-70.
External Module Leveling Adjustment Setup
HP 8340B/41B
Adjustments
5-129