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World of Ham Radio 1997
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WOHR97_AmSoft_(1997-02-01).iso
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tm231a_0.doc
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1997-02-01
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979b
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20 lines
TM231A
From : N4YJC @ N4LDG.#MIAFL.FL.USA.NA
OUT OF BAND MODIFCATIONS TO KENWOOD TM-231A
CONDENSED FROM INFO BY:PAUL SAFFREN --- N6NHH
THIS MODIFICATION WILL ALLOW TRANSMIT THROUGHOUT THE 136 TO 173 MHZ
RANGE. FIRST OF ALL YOU SHOULD BE AWARE THAT THIS MODIFICATION DISABLES THE
AUTOMATIC ARRL TRANSMIT OFFSET FEATURE.
YOU WILL NEED A 1N914, OR SIMILIAR GLASS DIODE (NOTE: IF YOU HAVE A CHIP
DIODE OF SIMILIAR RATING, ALL THE BETTER!).
IT WOULD BE A GOOD IDEA TO WRITE DOWN THE MEMORIES ON A PIECE OF PAPER, AS
DOING THE MOD ERASES THE MEMORIES.
REMOVE THE 4 BLACK PHILLIPS HEAD SCREWS FROM THE TOP AND BOTTOM BLACK
METAL SHIELDS.REMOVE THE TWO METAL COVERS.
NOTE: IF YOU JUST WANT TO MOD THE RADIO FOR MARS/CAP, JUST REMOVE THE
TOP COVER AND CLIP THE GREEN WIRE JUST ABOVE THE VFO,MR,MHZ SWITCHES,
AND REPLACE THE TOP COVER. THIS EXTENDS TRANSMIT ABOUT 3 MHZ ON EITHER
SIDE OF THE HAM BAND.
CONTINUED IN FILE TM231A.4