I am a new member of this group and fairly new to amateur radio.
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My question involves settings I might check/change in the IC 7000 to
improve reception on the 52-54 MHz portion of the 6 meter band.? We are
installing about 30 IC 7000s in local emergency operations centers and in most
places we are using a triband 6/2/440 antenna either a Comet GP-15 or a
Diamond V2000A.??
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I realize these are compromise antennas that are less than ideal on the 6
meter band, but we only need a couple of frequencies on 6 meters to do some
short range simplex (10-15 miles in most cases).? SWR on 6 is about 1.6:1
at 52.390 MHz. When testing a newly installed station the other day I was full
quieting into a 6 meter repeater about 17 miles away over hilly terrain.?
But I could not hear anyone talking back to me, not even static, nor could I
hear the repeater¡¯s ID tone which the other station involved in the test could
hear clearly.? I checked the squelch and volume settings and they were
fine.? The reception on 2 and 440 is fine.???
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Are there settings I might
check or internal filters that might help with 6 meter reception?? Does
this radio have any record of poor sensitivity or poor reception on 6
meters?? Others believe the issue is related to the antenna, yet the
antenna seems to be functioning sufficiently well to reach a repeater 17 miles
away over hilly terrain.?
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I suspect there is some
sort of interference that is attenuating the received signal, yet there is no
background ¡°noise¡± showing on the S meter.??
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Any suggestions or thoughts
about what might be going on would be most appreciated.? In the meantime
we are going to find a couple of mobile units that have 6 meters to do some
further testing with.