Icom IC-756 (IC 756 IC756) transceiver mods reviews software and diagrams

   
 
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29 March 2024, 1:53 UTC 


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Propagation:
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Icom IC-756 (IC 756 IC756)
IC-756
Programming interface schematics for Icom:
Programming software for Icom IC-756 (IC 756 IC756) :
PDF User Manual for Icom IC-756 (IC 756 IC756) :Icom IC-756 Instruction Manual
PDF Adjusments Procedures Manual with schematics for Icom IC-756 (IC 756 IC756) :
Schematics for Icom IC-756 (IC 756 IC756) :

Mods for Icom IC-756 (IC 756 IC756) :
    Icom IC-756 (IC 756 IC756) filter modification
    Icom IC-756 (IC 756 IC756) wide band modulation
    Icom IC-756 (IC 756 IC756) Spectrum Scope Adjustments
    Icom IC-756 (IC 756 IC756) ACC1 Audio Output Increase
    Icom IC-756 (IC 756 IC756) General Coverage H.F. TX Mod (1.6 - 30.0MHz)
    Icom IC-756 (IC 756 IC756) Expand TX Frequency

Icom IC-756 (IC 756 IC756) technical specifications :  Icom IC-756 (IC 756 IC756) technical specifications



Icom IC-756 (IC 756 IC756) wide band modulation

In order to improve the transmitted audio from a IC-756 most off these radios have a tiny switch next to the 455kc wideband x-tal filter.

Open de bottom side off the radio and turn it so you can read the text on de 455kc standard wide ssb filter. Next to te right down side off the filter you will find a tiny smd switch with W-N printed on de pcb. Change the switch position to wide.

Make sure you use a good mike! A bad one will sound even wourse!

And be carefull not overload the ALC. Otherwise you might splatter!!!

BTW Early numbers (below 01900) do not have this secret option!

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