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Remove diode D14
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Replace diode D13 with a MA132HK (icom part#1790000830)
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Replace diode D15 with a MA132WK (icom part#1790000850)
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Reset Radio
After mod, you get:
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118-136 MHz AM RX
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136-174 MHz RX/TX
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350-470 MHz RX/TX
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800-950 MHz RX
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1240-1300 MHz RX/TX
IC-Delta1A Logic Unit:
/---------|
| \___________________________
| D D D D D | <-Matrix D14 D13 D15 Q21 Q22
| D D D R | D11 D12 D10 R78 R79
| |
| |
| |
\_____________________________________/
____
Replacement of D13 - =| | MA132HK
| /|=k
a=|/_|
Replacement of D15 - ____ MA132WK
a=| |
| >|=k
a=|/_|
1N916 or 1N914 can be used too.
Reset The Radio When Finished
Cool radio, too bad its so big and doesn't tx on 800mhz...
|
