I don't know. I have used mine numerous times at various field days and
other contests on 6 with no problem. Mine has another problem though. On
432 it acts like the SWR is high on any antenna I have ever tried it with.
Works great into a 50 ohm load but put it on something that radiates (even
with a flat SWR) and the high SWR indicator comes on and it powers down to
just a watt or two out. I have been told to ground the rig well and use
toroids on the feedline at the rig to provide isolation but I haven't had a
need to use the rig much on 432 so I haven't bothered to troubleshoot the
problem much.
73
Jim, W4KXY
-----Original Message-----
From: vhfcontesting-bounces@contesting.com
[mailto:vhfcontesting-bounces@contesting.com] On Behalf Of Greg Chartrand
Sent: Thursday, November 27, 2008 10:41 PM
To: vhfcontesting@contesting.com
Subject: [VHFcontesting] rig recommendations for portable operation
I would NOT recommend a FT 857 or 897 for contesting. Both have
a problem with 6 meters that ultimately ends up with a trip for repair
associated with the final amp stage. This problem has been around for years,
starts with an oscillation and ends up with low output or blown finals.
Repaired radios seem to work just fine, I never heard of one to fail twice
but yeasu chooses not to fix it at the factory.
Mine has been repaired and I'm happy with it but I would not recommend it
particularly for contesting.
Greg
From:
kb7dqh@donobi.net
To:
"Tad Danley" <tdanley@verizon.net>
Cc:
ffma@yahoogroups.com, "VHF contesting list"
<vhfcontesting@contesting.com>
Obviously space is not a consideration if you were looking at a TS 2000:-)
The FT 857D is the smallest package of the three, and would no doubt run
cooler than the Icom 7000.
Only thing I don't like about the Icom 7000 is the way Icom laid out the
menu system.
Three or more times the price of the FT 857, but the RF performance
should be better with the IF DSP its got.
Really quiet RF deck, even without DSP NR cut in, if you hear noise, its
OUTSIDE the radio!!! The IF DSP noise reduction, when overly applied,
will remove weak signals along with the noise, but this was with one of
the early units! This may have been corrected in later ones. Sensitivity
is great, only use a REALLY GOOD, Low-noise preamp with this rig...
The early units had an issue with the driver transistor oscillating and
subsequent self-destruction. Newer units have been "fixed"... Only an
issue if buying used...
If cost is an issue, the '857 is nearly as good as the '7000, and almost
anything is better than a TS 2000... Yes, the TS2000 likely will hold
frequency better than any of the three... but that's about it.
Eric
KB7DQH
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