Bulletin: SM6420
Vendor:   Standard C528 / Heathkit HW-24-T
Subject:  Expand Frequency Range

If you have got a Standard C520 or C528 but dont have the other bands
then just follow the instruction:

                EXPANDING RANGE OF STANDARD C520/C528
                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

                   VHF  124.00-176.50Mhz  RX/TX
                   ~~~  327.00-399.99Mhz  RX

                   UHF  400.00-471.00Mhz  RX/TX
                   ~~~  820.00-899.99Mhz  RX
                        900.00-979.99Mhz  RX

1) TURN POWER ON.
2) PRESS VHF BUTTON.
3) PRESS FUNCTION THEN 0,D KEYS.
4) RELEASE FUNCTION.
5) PRESS UHF BUTTON.
6) PRESS AND  HOLD FUNCTION BUTTON  AND WHILE STILL  HOLDING FUNCTION
   PRESS THE FOLLOWING KEYS...0,D,L,B,3,0,3,0,3,L.

7) TO STEP THROUGH UHF BANDS REPEATEDLY. ie 363,433,863,933 Mhz.
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   PRESS FUNCTION BUTTON AND THEN 0,3 KEYS.