[TenTec] Does this happen to you on transmit...OMNI V ??

[Bob McGraw - K4TAX]

Make sure the ground screw on the rear is very tight.  The DC negative from 
the 4 pin power connector on the rear gets its connection to chassis and 
system ground under this screw on the inside.

I doubt that any shielding of the logic board will be of any value.  Likely 
something is loose on the inside, cable not secerely plugged in or one just 
might need to clean and excercise connectors.  Or the DC power switching 
relay on the power distribution board might be defective causing excessive 
voltage drop under load.

If it happens on a dummy load, I doubt that any grounding  would improve 
things.

73
Bob, K4TAX


----- Original Message ----- 
From: "Scott Shepard" <scottsheppard at videotron.ca>
To: <tentec at contesting.com>
Sent: Monday, February 24, 2014 6:41 PM
Subject: Re: [TenTec] Does this happen to you on transmit...OMNI V ??


>I have a run of LMR 400 out to the hex beam over 140 feet away. PWRs supply 
>is 32 amp switching but it does same on TT supply as well...cw key down or 
>ssb voice peaks...same effect. I will play around with some grounding ideas 
>and see what happens. May have to build a shield for the logic board...if 
>memory serves me it had similar issues into a dummy load but will verify...
>
> Thanks
> Scott
>
> Sent from my iPad
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