Icom IC-706 (Icom IC 706 MKIIG IC706) transceiver mods reviews software and diagrams

   
 
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Icom IC-706 (Icom IC 706 IC706)
Icom IC 706
Programming interface schematics for Icom:
Programming software for Icom IC-706 (Icom IC 706 IC706) :
PDF Service Menu for Icom IC-706 (Icom IC 706 IC706) :
PDF Service Manual with schematics for Icom IC-706 (Icom IC 706I IC706) :  Icom IC-706 (Icom IC 706 IC706) Operating manual
Schematics for Icom IC-706 (Icom IC 706 IC706) :

Mods for Icom IC-706 (Icom IC 706 IC706) :
    Icom IC-706 (Icom IC 706 IC706) Motorola Keypad Microphone
    Icom IC-706 (Icom IC 706 IC706) to codan 9350 auto antenna tuner interface
    Icom IC-706 (Icom IC 706 IC706) all version, modulation tweaks at ease
    Icom IC-706 (Icom IC 706 IC706) Mk1- Deaf on 144Mhz
    Icom IC-706 (Icom IC 706 IC706) Increased mic gain
    Icom IC-706 (Icom IC 706 IC706) Increased SSB modulation
    Icom IC-706 (Icom IC 706 IC706) e-z fix
    Icom IC-706 (Icom IC 706 IC706) NO RX Sensitivity
    Icom IC-706 (Icom IC 706 IC706) RF OUTPUT on 1 band only and low on others
    Icom IC-706 (Icom IC 706 IC706) Adding an extra RX-only port
    Icom IC-706 (Icom IC 706 IC706) Improved VHF receive mod (see also yellow wire mod)
    Icom IC-706 (Icom IC 706 IC706) To expand the band on the VHF portion
    Icom IC-706 (Icom IC 706 IC706) FM Transmit Fix
    Icom IC-706 (Icom IC 706 IC706) Microphone Audio Response Improvement
    Icom IC-706 (Icom IC 706 IC706) "Halbautomatik" fur manuelle Tuner
    Icom IC-706 (Icom IC 706 IC706) 10 watt tune modification/An Icom IC706 Tune Trigger
    Icom IC-706 (Icom IC 706 IC706) , MKII, MKIIG xmit mods - tip
    Icom IC-706 (Icom IC 706 IC706) Some tips.
    Icom IC-706 (Icom IC 706 IC706) MARS/CAP Modification
    Icom IC-706 (Icom IC 706 IC706) Review
    Icom IC-706 (Icom IC 706 IC706) Enables out-of-band transmit for 1.6 MHz to 54 MHz
    Icom IC-706 (Icom IC 706 IC706) More semsitive transmit for 2 meter
    Icom IC-706 (Icom IC 706 IC706) 60 MHz to 200 MHz bandpass filter
    Icom IC-706 (Icom IC 706 IC706) Extended RX mod
    Icom IC-706 (Icom IC 706 IC706) Info/mods
    Icom IC-706 (Icom IC 706 IC706) Expanded frequency
    Icom IC-706 (Icom IC 706 IC706) spare 0.3A

Icom IC-706 (Icom IC 706 IC706) technical specifications :  Icom IC-706 (Icom IC 706 IC706) technical specifications



Icom IC-706 (Icom IC 706 IC706) all version, modulation tweaks at ease

I recently got hold of another IC-706 MKII, ( my first love ) and i noticed the the modulation was not satisfactory, i mean low talk power on SSB and faint modulations on FM, after performing a complete check up of the rig using the Service Manual and adjusting the whole for peak performance what left to be desired was the modulation, still low expecially on FM compared to my Alinco DR 605 V-U rig.

Well if you are encountering my same request, just perform these simple changes on the original microphone.

Work on a wide table covered with a cloth ( jumping springs inside ;-) )

Open up the the microphone removing the 3 screw on the back. Carefully lift the two shells apart, watch out the the PTT spring does not jump out.

Remove the 2 screws that hold the small PCB holding the microphone capsule.

Unsolder the original capsule and change with any other commercially available or salvaged from older cordless phone, mobile phone etc.

Solder the new capsule ( make sure that polarity is correct, the ground of the capsule should be soldered in the pad close to the center of the PCB just in case you forgot where it was, and the positive towards the left side of the hole for the capsule.

TADA!! mods is over.

Reassemble the lot and i'am 100% sure that you will notice the new stronger modulation. Adjust with the Mic Gain to your taste.

For those with weak voice level, try also to open the metal lid inside the microphone and remove the rubber disk inside, that gives better response to high tones.

All feedback would be appreciated.


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