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2. Display Adjustment
2. Display Adjustment
Assembly
Adjusted
A2 controller
Al7 CRT driver
Related
Performance
Test
Sweep Time Accuracy (Sweep Times
<30
ms)
Description
Coarse adjustment of the deflection amplifiers, Z-axis amplifiers, and line generators is done
using the CRT adjust pattern. Fine adjustments use the graticule. The fast zero-span
amplitude adjustments correct for differences between analog and digital display modes. The
displayed sweep time accuracy is adjusted in the fast zero-span sweep adjustments.
SPECTRUM
ANALYZER
Figure 2-2. Display Adjustment Setup
Equipment
10 dB VHF step attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 355D
Adapters
Type N (m) to BNC (f) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1250-1476
Cables
BNC, 122 cm
(2
required)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 10503A
SK12
Adjustment Procedures 2-15