IC32AT.13

This shows diodes as installed at the factory.

           TOP

    +--+          +--+
    |  |          |  |  D907
    +--+          +--+

    +--+   | /|   +--+
    |  |---|< |---|  |  D913  Removing this diode results in expanded UHF
    +--+   | \|   +--+        coverage.  Coverage is from about 430-460 Mhz.

    +--+          +--+
    |  |          |  |  D908
    +--+          +--+

    +--+   | /|   +--+  
    |  |---|< |---|  |  D912  Removing this diode results in enabling
    +--+   | \|   +--+        the unit as a cross-band repeater.

    +--+          +--+
    |  |          |  |  D???  Installing diode here (same direction as others) 
    +--+          +--+        permits direct entry entry of the 10Mhz digit.

         BOTTOM