?GENERAL COVERAGE TRANSMIT MOD FOR MARS OPERATION YAESU FT-990 REMOVE
TOP COVER LOCATE AND REMOVE CTRL BOARD (CTRL BD. IS THE FAR RIGHT
VERTICLE BD LOOKING AT THE TRANCEIVER FROM THE FRONT. REMOVE TWO
PHILLIPS HEAD SCREW AND LIFT OUT BOARD.) LOCATE JP5002 (JP5002 IS
LOCATED ON THE FAR RIGHT OF THE PC BOARD NEAR THE TOP OF CHIP Q5016.
Q5016 IS THE THIRD BIG CHIP LOCATED AT
THE FAR RIGHT OF THE PC BOARD.)
SOLDER JUMPER JP5002
RE-INSTALL BOARD
SET MODE TO CW
METER TO ALC
RF CTRL FULLY CLOCKWISE
ADJUST VR1003 AT 5.000 Mhz TO FULL ALC METER READING.
ADJUST VR1005 AT 8.000 Mhz TO FULL ALC METER READING. VR1003/1005 ARE
LOCATED ON THE FAR LEFT VERTICLE BOARD LOOKING AT THE TRANCEIVER FROM
THE FRONT. THE POT ARE ADJUSTABLE FROM THE TOP. THERE IS NO NEED TO
REMOVE THIS BOARD. RE-ASSEMNBLE THE RADIO AND YOU ARE READY TO GO.?
Does someone have done it? I need to go little bit
under amateurs band to check SWR on my antennas.
Thank You
Samir Popaja, SM7VZX
Lettlandsgattan 2B
SE-214 31 Malmö
Sweden
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