Is your Power Supply a switching type. These are notorius for creating
noise. Can you try another power supply, preferably the one you use with
the Kenwood. Are your neighbours on a common TV distribution system ?
This is the first time I have heard of an Orion causing TVI ! Go back
again with the Kenwood and see if the TVI has disappeared. Or it could be
that something has changed in the TV distribution amplifier, including a bad
coax connector from the TV antenna to the distributor. Check the coax
antenna connector to the Orion; maybe the shield is intermittent and failed
while moving it when you changed equipment. Let us know how you do.
Ken, WA4RPH (I have an OMNI VI+ and lKW Centurion, tribander beam and Zepp
all band ant and no TVI on any band)
-----Original Message-----From: tentec-bounces@contesting.com
[mailto:tentec-bounces@contesting.com]On Behalf Of Giuseppe Crosta
Sent: Thursday, April 28, 2005 4:03 AM
To: tentec@contesting.com
Subject: [TenTec] Orion and TVI
Dear friends,
I would like to submit this question to the group.
I have used for several years a Kenwood TS940 transceiver and I never cause
TVI problems to my neighbour apartments.
Now since I start to use a new TT Orion rtx all my neighbours note strong
TVI during the operation.
All other equipment are the same: 3 el yagi antenna, power lines, coaxial
line and so on.
No changes in radio shack. I have added only an external DC power supply for
the new rig.
Why TVI starts? What are the possible reasons and the corrections? Have any
other ham the same troubles using the Orion rig?
Thank for your suggestions and help.
Beppe IZ2ABU
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AGUSTA S.p.A.
An Agusta-Westland Company
Giuseppe CROSTA
c/o Politecnico di Milano
Galleria del Vento - Wind tunnel facility
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20158 Milano - Italy
Phone +39-02-2399.8057
Fax +39-02-2399.8274
E-mail crosta@aero.polimi.it
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