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TH-77A modifications | Radioaficion Ham Radio

TH-77A modifications

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KENWOOD TH-77A

EXPANDED RF CROSS BAND REPEATER AM RECEIVE ON 118-136 MHz

1 Disconnect the battery and antenna.

2. Remove the three case screws and two battery plate screws.

3. Lift front panel from radio. Do not disconnect flex cables.

4. Remove chip resistor R128 and R129. Capacitor C124 may be glued down

over these Resistors. You may wish to unsolder the capacitor to avoid tearing the

flex board foil traces.

5. Reassemble the radio.

6. RESET the CPU.

KENWOOD TH-77A EXPANDED RF CROSS BAND REPEATER AM RECEIVE ON 118-136 MHz

AM sensitivity is typically less than 1uV for 10db S+N/N. CROSS BAND OPERATING PROCEDURES

Turn on /off the Repeater mode : Press and hold the [SUB UP] key and turn the power on.

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