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February 13, 1998
 
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Motorola MICOR High Band to 220 MHz Conversion
EXCITER MODIFICATION


Step 1: Remove Exciter PCB and change the following components to the new values shown:

 
 
C430 – 68pf 5% Silver-Mica C447 – 10pf NPO Disk 
C433 – 150pf 5% Silver-Mica C448 – 15pf NPO Disk
C434 – 120pf 5% Silver-Mica C451 – 4.7pf NPO Disk
C437 – 22pf 5% Silver-Mica C452 – 7.5pf NPO Disk
C439 – 22pf 5% Silver-Mica  C455 – 3.9pf NPO Disk 
C440 – 47pf 5% Silver-Mica  C456 – 4.7pf NPO Disk
C443 – 15pf 5% Silver-Mica  C458 – 1.5pf NPO Disk
C444 – 12pf 5% Silver-Mica  C460 – 75pf 5% Silver-Mica
R429 - 180 ohm 1/2 watt

  


Step 2: Reinstall Exciter PCB and tune in accordance with Motorola manual. Exciter should produce approximately 100mW.


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