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IC-3220 Modifications | Radioaficion Ham Radio

IC-3220 Modifications

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ICOM IC-3220

EXPANDED RF & Air Craft AM

1. Remove power and antenna.

2. Remove screws open case.

3. Locate and Cut Diode D4 on the LOGIC board. (VHF 118-135 Mhz)

4. Locate and Cut Diode D5 on the LOGIC board. (UHF)

5. Install a jumper at "land" point. (VHF) Located right of D9.

6. Install a diode (1SS181) at Location D9 on the LOGIC board.

7. Reassemble the radio

8. Reset the microprocessor. (Press and hold [SET] & [MW] and turn radio on)

ICOM IC-3220  mods EXPANDED RF & Air Craft AM

CROSS BAND REPEATER PROCEDURES

TURN ON - Set VHF & UHF Frequencies in DUAL WATCH mode. Press and hold [BAND] and press [SET]. Memory channel will show a flashing "L"

TURN OFF - Press [SET] key. Turning off the radio will not disable repeater mode. Note: The Mic PTT will still operate the radio in repeater model!!

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