Icom IC-718 (IC 718 IC718) user and service manual, modifications

   
 
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20 November 2024, 2:41 UTC 


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Icom IC-718 (IC 718 IC718)
IC-718
Programming interface schematics for Icom:
Programming software for Icom IC-718 (IC 718 IC718) :
PDF User Manual for Icom IC-718 (IC 718 IC718) : Icom IC-718 Instruction Manual
PDF Adjusments Procedures Manual with schematics for Icom IC-718 (IC 718 IC718) :
Schematics for Icom IC-718 (IC 718 IC718) :

Mods for Icom IC-718 (IC 718 IC718) :
    Icom IC-718 (IC 718 IC718) Tune controller mod
    Icom IC-718 (IC 718 IC718) D48 to D55 Role informations
    Icom IC-718 (IC 718 IC718) Balancing the first RX-mixer of the receiver (MAIN UNIT board)
    Icom IC-718 (IC 718 IC718) Decreasing of superfluous amp in second IF-stage, (MAIN UNIT board)
    Icom IC-718 (IC 718 IC718) Better original mike audio MH-36, IC-718 and other
    Icom IC-718 (IC 718 IC718) 200w SSB
    Icom IC-718 (IC 718 IC718) AGC setting
    Icom IC-718 (IC 718 IC718) AGC time delay cure
    Icom IC-718 (IC 718 IC718) Extended TX and RX
    Icom IC-718 (IC 718 IC718) Modify IC-718#04 to IC-718#03
    Icom IC-718 (IC 718 IC718) TX 1.8 - 30 MHz

Icom IC-718 (IC 718 IC718) technical specifications :  Icom IC-718 (IC 718 IC718) technical specifications



Icom IC-718 (IC 718 IC718) Better original mike audio MH-36, IC-718 and other

If you look inside the stock hand mic there is a thick felt plug, about the size of a small aspirin tablet, in the front of the electret element. It is a very dense material, unlike plastic foam, and the one in my mic is almost 1/4" thick!

I thought that this must surely restrict middle to high audio frequencies so I removed it and replaced it with a small piece of open cell foam.