Here's the fix per Nick Grubbs in 1993

ATS-803A and DX-440 Mod

This mod gets rid of the "chuff" when tuning the radio that
becomes very annoying. This Mod also enables the speaker while you
are scanning. You will be surprised on how much you have missed.
I have done the mod and it is real easy. If you don't like it
change it back. I got the mod from a unknown source, so it has not
yet been tested. I have heard of no complaint or problems.
The Mod is so easy all you need is a Phillips screwdriver and
5min's. It's that easy. Ok here it is:

1) Remove the batteries from the unit and turn it upside
down so the antenna is facing away from you.

2) Remove the six screws and remove the cover (be careful
that you don't break the antenna wire)

3) Okay so far so good. Now locate the 8-pin cable.

4) Remove it carefully. Bend the second lead from the left
to a 90'.

5) Replace the cable and make sure the lead is not touching
anything.

6) Wa la [sic] it's done. Not so bad now huh?



"Rob R." wrote in message
ink.net...
Does anyone familiar with this radio know if it is uncommon to have a very
slight wobble when turning the tuning knob...and a very slight noise
also...like it's churning or something...

It also has the clicks which I believe is normal "chuffing" for this
radio.
Thanks for the info...

I just got one of these literally NIB, unopened for 13 years, with a 1991
bill of sale from CCrane Co.

RR