Subject: ADI AT-201 Mod

Expanding the RECEIVE and TRANSMIT frequency range of the 
ADI AT-201 (for export only)    130-163.995 mHz	18 Jul 96

NOTE!  The first step is the microprocessor master reset and 
will erase ALL memories.

1)  Press F and CALL while turning radio on.  Display will 
show all digits.  Release F and CALL.  Display reads 145.00.  
Turn radio off.

2)  While pressing the(3)and the(CALL) button, turn the 
radio on.  Display will show a (3).

3)  Turn radio off and then on again.  Radio will now 
display between 100.000 and 179.995 mHz.  PLL will lock and 
receive between about 130-170 mHz.  It transmit between 144-
147.995 mHz only. Flashing display indicates unlock.

To transmit from 130-163.996 mHz, continue:

4)  Change step size to 5 kHz by pressing F and 3 and 
rotating dial knob one click to the left.  Display reads 05.

5)  Press F and 9.  Display reads 00.60.  Change it to read 
30.6350.  The last two digits look like a tiny [50].  It 
takes many turns of the dial knob to do this step.  Pressing 
the function button while turning the knob will speed up the 
process by incrementing in 100 kHz steps. 

6)  Change step size back to 10 by pressing F and 3 and 
rotating the dial knob one step to the right.  
Display reads 10.

7)  Press F and 0.

8)  Press 7.  Display reads   .   (period)

9)  Press the numbers 3 0 6 3
 
10) Press *.  Display reads 130.00

After modifying the radio, you may change the band limits.
Example: Set limits to 148-169.995 mHz

11) Press F and 0.  Press 7.

12) Press the numbers 4 8 6 9

13) Press *.  Tx/Rx range is now 148-169.995