Icom IC-7400 (IC 7400 IC7400) transceiver mods reviews software and diagrams
   
 
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04 November 2025, 4:53 UTC 


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Icom IC-7400 (IC 7400 IC7400)
IC-7400
Programming interface schematics for Icom:
Programming software for Icom IC-7400 (IC 7400 IC7400) :
PDF User Manual for Icom IC-7400 (IC 7400 IC7400) : Icom IC-7400 Instruction Manual
PDF Adjusments Procedures Manual with schematics for Icom IC-7400 (IC 7400 IC7400) :
Schematics for Icom IC-7400 (IC 7400 IC7400) :

Mods for Icom IC-7400 (IC 7400 IC7400) :
    Icom IC-7400 (IC 7400 IC7400) Expand the RX & TX

Icom IC-7400 (IC 7400 IC7400) technical specifications :  Icom IC-7400 (IC 7400 IC7400) technical specifications




Icom IC-7400 (IC 7400 IC7400) Expand the RX & TX

See the picture on this modification:
IC-7400

IC-7400

Please note, that you have to remove all 0 Ohm resitors (7 pieces), wich are currently not shown on the upper picture.

After the remove, your RX/TX modification is ready to run on the german version of the IC-7400. 

RX: 30 kHz -  60 MHz
   108 MHz - 174 MHz 

TX: 1,6 MHz -  60 MHz durchgängig
    108 MHz - 174 MHz durchgängig

The main unit will be accessable from the bottom.



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