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Realistic Pro- 34 Mods
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PRO34.8
After using his Radio ShackO PRO-34 portable scanner for
a few months, Ron Smithberg, a radio hobbyist in Joliet,
was hampered by a "wandering birdie." Ron's scanner was
hearing itself on a few frequencies in the VHF-Hi range,
but the birdie disappeared when he tilted the radio or
squeezed the case. There had been no problem when the
scanner was purchased initially.
I suggested that a ground connection or a circuit board
in his PRO-34 might be loose. The thin PRO-34 plastic
case feels chintzy, and can flex easily by applying just
a gentle squeeze. After prolonged use, the case motion
can loosen screws which were once tight.
Ron disassembled his PRO-34. He unfastened the helical
antenna, knobs, and rear screws, then gingerly removed
the plastic case. After Ron tightened a PhillipsO screw
holding the Logic Board to the front of the case, the
birdie disappeared forever!
The operation took a steady hand. Although he didn't
have to remove any boards, Ron warned that accessing the
offending screw was a challenge. He used a very small
Phillips screwdriver, positioned through a hole in a
shield partition.
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Bob Parnass AJ9S, AT&T Bell Laboratories - att!ihuxz!parnass - (312)979-5414
RERUN...BY...GENE...N0KGX
Downloaded From P-80 International Information Systems 304-744-2253
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