Uhf Duplexer High Notch Loop Assemblies Tuning Set Up; Figure 73: Test Equipment Set Up For Tuning Uhf Duplexer High Notch Loop Assemblies; Tuning Uhf Duplexer High Notch Loop Assemblies - Motorola ASTRO 25 GTR 8000 Manual

5.10.5.4

UHF Duplexer High Notch Loop Assemblies Tuning Set Up

Figure 73: Test Equipment Set Up for Tuning UHF Duplexer High Notch Loop Assemblies

5.10.5.4.1

Tuning UHF Duplexer High Notch Loop Assemblies

Procedure:
1 Set up test equipment as shown in
High Notch Loop Assemblies on page
2 Using a screwdriver, adjust the notch adjustment screw for cavity # 1 to obtain a minimum
reading on the millivoltmeter. (Reduce the range on the millivoltmeter as necessary to reach true
minimum reading.)
3 Using an open-end wrench, carefully tighten the lock nut ensuring the notch adjustment screw
does not shift position.
4 Repeat steps 2 and 3 for cavities 2 and 3.
Chapter 5: GTR 8000 Base Radio Optimization
Figure 73: Test Equipment Set Up for Tuning UHF Duplexer
179.
MN003286A01-E
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