Sounds like the classic "clean the connectors behind the front panel"
problem to me. There's a few connectors that over more than 100
connections and because Tentec did not use gold pins, they need to be
cleaned once in a while. Because there are so many connections, almost
any symptom is possible. But the key is the problem starts out
intermittent.
Remove the front panel, get some good contact spray, unplug the
connectors, spray them, then plug them in and out about 10 times to
clean them.
Carl Moreschi N4PY
58 Hogwood Rd
Louisburg, NC 27549
www.n4py.com
On 10/16/2014 3:25 PM, art N4UC wrote:
I have been experiencing the exact same problem for months with my Orion 565.
It started out mostly only on 20M and would clear up if either changed bands or
cycled the power. Then it progressed to other bands as well and now does not
clear up regardless of what I try. It affected only the main rcvr, the sub was
fine. Listen on a separate radio to see if it also affects the transmitted
signal. In my case the transmitted CW signal sounds just like the received
signal audio, warbly and buzzing almost like a spark gap signal!. So I'm
guessing it's somewhere in the local oscillator/IF chain. I've talked to TT a
few times and there's no way to diagnose my symptoms without getting it on the
bench.
Currently it's sitting on the shelf unusable while I decide how much I want to
spend on it. Good luck. If you think of it, drop me a note if you resolve the
problem.
Art/N4UC
From: Doug.Speer@FairbanksMorse.com
To: tentec@contesting.com
Date: Thu, 16 Oct 2014 13:37:22 +0000
Subject: [TenTec] Orion II Problem
I am starting to believe my Orion II has developed a problem. On the main
receiver I am hearing distorted, buzzing sounding signals that are well outside
the DSP and roofing filter bandwidth. I am not hearing signals outside the
filter bandwidth on the RX-366 sub-receiver. The problem is most notable on
160m but to some extent present on 80m. I don't really notice it above 80m. I
have tried a master reset which did not resolve the problem.
Do any of you have any immediate thoughts or does the rig need to visit
Sevierville?
Doug, W9PN
Janesville, WI
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