[TenTec] Omni VII first impressions....odd things i.e. SWRvalues

Bob McGraw - K4TAX RMcGraw at Blomand.net
Sat Dec 22 17:53:07 EST 2007


Mike:


OK you convinced me.  Yes, give Paul at Tentec a call maybe on Monday. 
Don't know if they are working Christmas Eve however.  May have to wait 
after Christmas.

One thing you didn't cover.  What's the output power as indicated on the 
Bird?  I ask, wondering if the SWR value seen by the internal bridge is 
causing any power foldback.  If it is not, then enjoy the operation and feel 
comfortable that it is only an indication issue, thus not affecting 
operation.

73
Merry Christmas

Bob, K4TAX
----- Original Message ----- 
From: "Mike Bryce" <prosolar at sssnet.com>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Friday, December 21, 2007 9:21 PM
Subject: Re: [TenTec] Omni VII first impressions....odd things i.e. 
SWRvalues


> bob and all..
>
> Here's the set up once again
>
> Radio running from a 14.0 volt supply
> one coax cable from the Omni VII to a bird wattmeter with correct slug.
> a second coax cable to a 50 Ohm dummy load
>
> Dummy load is within specifications
>
> Press "tune"
>
> Omni VII goes into low transmit
>
> SWR meter shows 9:9 to 1
>
> Bird wattmeter shows NO reflected power (ok, the meter's needle moves
> upward the width of the needle)
>
>
> Press "tune"
>
> Omni VII goes into low transmit
>
> SWR meter shows 4.5 to 1
>
> Bird wattmeter shows NO reflected power
>
> Press "Tune"
>
> Omni VII shows 2:1 to 1
>
> Bird wattmeter shows NO reflected power
>
> Press "Tune"
> Omni VII shows 9.9 to 1
>
> Bird wattmeter shows NO reflected power
>
> Press "tune"
>
> Omni VII shows 1.1 to 1
>
> Bird wattmeter shows NO reflected power
>
>
> same problem with either antenna port
> NO internal antenna tuner installed
>
> Same problem on all bands
>
> I could keep going but I hope you see what I am talking about
>
> The problem is NOT a coax connector or bad cable, the bird would have
> shown that.
>
> I'll have to give TT a call after the holidays..
>
>
> Mike, WB8VGE
> SunLight Energy Systems
> The Heathkit Shop
> http://www.theheathkitshop.com/




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