Leveling Adjustment - HP 8340B Manual

5-19. EXTERNAL MODULE LEVELING ADJUSTMENT
Reference
Performance Test: None
Service Section:
RF
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.
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EXT
INPUT
ADAPTER
APC—3.5(f)
to APC—3.5(f)
(8340B ONLY)
Equipment
Digital Voltmeter (OVM)
Detector, Positive
Adapters:
APC 3.5 (f) to APC 3.5 (f)
(required for HP 8340B only)
APC 3.5 (f) to Type N
(required for HP 8341B only)
BNC (f) to Dual Banana
BNC Tee
HP 8340B/41B
Section
DUT
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(Th
0000
00
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CCC
BNC TEE
Figure 5-70. External Module Leveling Adjustment Setup
(in)
DIGITAL VOLTMETER
HP 3456A
HP 8473C Option 003
HP P/N 5061-5311
HP P/N 1250-1 744
HP P/N 1251-2227
HP P/N 1250-0781
Adjustments
5-129