Motorola ASTRO 25 GTR 8000 User Manual

5.10.5.3
UHF Duplexer High Pass Resonators Tuning Set Up
Figure 72: Test Equipment Set Up for Tuning UHF Duplexer High Pass Resonator
5.10.5.3.1
Tuning UHF Duplexer High Pass Resonators
Procedure:
1 Set up test equipment as shown in Figure 72: Test Equipment Set Up for Tuning UHF Duplexer
High Pass Resonator on page 178.
2 Using a nut driver, adjust the pass adjustment screw for cavity #4 to obtain a PEAK reading on
the millivoltmeter.
3 Using an open-end wrench, carefully tighten the lock nut ensuring the pass adjustment screw
does not shift position.
4 Repeat steps 2 and 3 for cavities 5 and 6.
MN003286A01-E
Chapter 5: GTR 8000 Base Radio Optimization
178

Motorola ASTRO 25 GTR 8000 Specifications

General

Brand	Motorola
Model	ASTRO 25 GTR 8000
Category	Radio
Language	English