IC22S.1

I  have prepared information to modify the IC22S  sythesizer to  allow  it to
have 5 KHZ steps in lieu of the original 15  KHZ steps.  This will allow the
rig to go onto 145.01 MHZ for packet radio operation.

In short, the modification requires changing a crystal,  making some copper
path cuts,  adding some jumpers, and installing  a  new divide by N counter
which  consists  of  three CMOS  digital integrated circuits.

If you put it on a frequency as low as 145.01 you will also need to re-tune
the front end  and you  may need to re-tune the VCO free running frequency.   I have 
made the mod to my radio and am using it to up-load this file.  I re-tuned the
front end to increase sensitivity back to the normal although it did work
without re-tuning.  I did not have to adjust the  VCO.

If  you would like to receive the  information  which consists  of a schematic
of new counter,  old  and  new  block diagrams   and   instructions  to 
incorporate   and   test   the modifications, send an SASE (standard business
envelope, 22 cents postage) to:
     
                       Jon Reeves, WB9CNE
                        12125 Trolley Rd.
                    Oaklandon, In 46236-3056

NOTE:  The information which will be mailed is being prepared for publication.
It is requested that the information be used  only for  modification  of  your
personal radio and not be  passed  on without this note or placed on any
bulletin board system.   I  am releasing the information now to assist packet
radio operators in their  efforts  to  move  to  145.01  MHz  and  would
appreciate consideration of this request.