[Yaesu] 8900

[danjr]

There is a service menu, where these adjustments can be made.  I have a 
couple of this rigs, and had to make a similar adjustment on both of 
them when I bought them.

Press & hold "left" band [VM] key and hyper memory [6] buttons while 
turning the radio on.  Release keys when radio is on.

Then perform following key sequence:

"left" band [LOW] -» "left" band [V/M] -» "left" band [HM] -»
"left" band [SCN] -» "right" band [LOW] -» "right" band [V/M] -»
"right" band [HM] -» "right" band [SCN]

You are now in alignment mode.

BE CAREFUL in this menu, as you can dramatically affect the radio with 
improper adjustments.  Once in the menu, look for A-4 DEV and make the 
appropriate adjustments.

FYI, you can also adjust the power settings, S meter calibration, and 
tone and DCS deviation settings in this service menu.

http://www.mods.dk/view.php?ArticleId=2736

73
Dan


> Can anyone tell me if there is an internal adjustment for the mic gain
> on the 8900 quad bander?  A friend of mine has one and the audio is 
way
> too hot.  Sounds right when he talks into the back of the mix.
> Appreciate any help,
> 
> 73, Dale kojxi
> 
> 
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