[TenTec] Distortion SSB Omni VII

[Roger Wise]

Both the HC4 and HC5 were used with same results.  The whole station is 
grounded to a copper pipe at back of desk.   Then to a 3 inch copper ground 
strap to the grounding panel.  All short leads.  I will recheck the grounds 
some more.  That might be the problem.  Thanks for all of the replies  so 
far.
Rog
----- Original Message ----- 
From: "steve r" <n8isaham at yahoo.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Saturday, November 21, 2009 10:55 AM
Subject: Re: [TenTec] Distortion SSB Omni VII


What element is the Heil using?
do you have a single point to ground on all equipment including computer and 
micro keyer. I had a similar problem and I did the following.

Attatched ground leads on all equipment I have connected on the desk.

EVERYTHING goes to a 3/4 inch copper waterpipe attatched to my desk with 
stainless steet bolts bolted and solderd to the copper pipe , then from 
there is 2.5 inch flat copper strap going out the window to ground rod 
outside at the base of the house same floor as equipment.

this helped on other rf issues as well from computer and ground hum on 
external radio speaker.

may not help your situation but cant hurt either. Steve N8IS

'If you don't read the newspaper you are uninformed, if you do read the 
newspaper you are misinformed.'
-Mark Twain




________________________________
From: Roger Wise <jrwise at hbci.com>
To: tentec at contesting.com
Sent: Sat, November 21, 2009 11:46:25 AM
Subject: [TenTec] Distortion SSB Omni VII

I am using the Omni VII 588/AT. Firmware V 1027. Microham keyer. WriteLog
contest program. Here is the problem. When I send a contest voice message
from the WriteLog program the audio is perfect. I am monitoring it on a
separate receiver. When I transmit direct using a heil pro set/ plus
everything is distorted. I have broken everything down to just a dummy load
with same results. I can clean up the distortion by adjusting the TX
Equalizer to a minus 15 db. Used ddifferent mics and same results.I am
wondering if anyone else out there has this same problem. For the life of
me I don't know when this problem came about. I have run the experiment on
low power as well as high. I changed grounding cables and even taken them
off. No effect. Any help out there. I always had great signal reports
about the audio before.
Thanks Roger KI0F

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