FT41R.4

From: KA8WPC@KF8OW.#NWOH.OH.USA.NA

KA8WPC/TPK 1.81 MSG #:736  DATE:12-24-93  TIME:1:35Z

         HI!
           I SENT OUT RECENTLY, THE MOD FOR THE YAESU FT-11R.
         I JUST RECEIVED MY NEW FT-41R (UHF).  IT IS JUST AS
         FANTASTIC AS THE FT-11R (VHF).  NO COMPLAINTS AT ALL.
         SO, AFTER PLAYING WITH IT, I ENCLOSE THE FOLLOWING:
  
  
  
           YAESU FT-41R MARS MODS!    -(UHF)-
  
            FIRST REMOVE THE SIX SCREWS HOLDING THE BACK COVER.
         (4 ON THE BACK CASE, AND 2 ON THE BOTTOM OF THE BATERY COMPARTMENT.)
         CAREFULLY SEPARATE THE FRONT AND BACK HALVES. (CAREFUL NOT TO DAMAGE
         THE FLEX CIRCUIT CONNECTING THE 2 HALVES.)
         WITH THE FRONT OF THE RADIO FACING DOWN, REMOVE THE 2 BRASS SCREWS
         HOLDING THE SECOND BOARD TO THE MICROPROCESSOR BOARD. (THIS IS THE
         BOARD CONNECTED TO THE FRONT CASE.)
         CAREFULLY PRY THE BOARD FROM THE MICROPROCESSOR BOARD, EXPOSING THE
         MICROPROCESSOR BOARD.
         YOU SHOULD NOW HAVE THE FRONT COVER WITH THE MICROPROCESSOR BOARD,
         AND THE OTHER 2 BOARDS SEPARATED BY THE FLEX CIRCUIT.
         LOOK AT THE MICROPROCESSOR BOARDS LOWER LEFT CORNER.
         THERE YOU WILL SEE SOLDER JUMPER PADS AS ILLUSTRATED BELOW WITH
         THE FOLLOWING PINS JUMPERED:
  
  
  
         
                    
               uP               PINS ,2,4,6, AND 7 ARE JUMPERED
                    
                                  REMOVE JUMPERS 2 AND 4
                                  FOR OUT OF BAND OPERATION.
          o o  o6o        
          o2o  o o        
          o o  o7o        
          o4o  o o        
         
  
         REASSEMBLE UNIT IN REVERSE ORDER, AND INSTALL SCREWS.
         INSTALL BATTERY PACK.
         HOLD DOWN (MR), (VFO), AND (2) AND TURN POWER ON.
         TURN POWER BACK OFF
         HOLD DOWN (UP ARROW), AND (DOWN ARROW) AND TURN POWER ON.
         NOW KEYBOARD ENTRY IS DIRECT, AND UNIT WILL TX/RX FROM
         APROX 430-470mhz.
         IT WILL ALSO RX 800 AND 900 MHZ. (AT A REDUCED SENSITIVITY)
  
         THIS MOD DOES WORK AND HAS BEEN TESTED. IT IS STILL ILLEGAL TO
         TRANSMIT OUT OF BAND UNLESS YOU HAVE A VALID MARS OR CAP PERMIT.
                                                73, -=MIKE=-
                                                     KA8WPC
  
  
         EOF DE KA8WPC@KF8OW.#NWOH.OH.USA.NA