[TenTec] Built in SWR meter bannans [common mode UNUN location ]

[K7TXO]

Bob -
For the sake of discussion;  for a 1:1 UNUN at the "shack" end of an antenna 
cable, is there an optimal location for Jim to put this UNUN?
I mean, will placing it right at the back of his amplifier out connector be 
appropriate or outdoors, just outside of the shack?

Gene  /  K7TXO

----- Original Message ----- 
From: "Bob McGraw - K4TAX" <RMcGraw at Blomand.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Sunday, April 21, 2013 3:57 PM
Subject: Re: [TenTec] Built in SWR meter bannans


> Sounds like RF current on the shield when on the antenna and not on the 
> dummy load.  I suggest a 1:1 UNUN balun between the amp and the antenna. 
> I've had good success with a product from The Wireman being model #8232. 
> Certainly worth a try.
>
> 73
> Bob, K4TAX
>
>
>
>
> ----- Original Message ----- 
> From: "Jim GM" <jim.gmforum at gmail.com>
> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
> Sent: Sunday, April 21, 2013 11:13 AM
> Subject: [TenTec] Built in SWR meter bannans
>
>
>>I have a Tec Tec Auto Coupler that is turned off and a Ten Tec Hercules II
>> at full power. The SWR bridges in side the equipment reads well over SWR
>> over 3:1 on certain bands while my BIRD Watt meter read 2:1.
>>
>> ALL SWR meters is at 1:1 into a dummy load so that rules out the BIRD is
>> whacked.
>>
>> This problem seams to mainly happen on 160M however I have seen it do 
>> this
>> on different bands with other antennas in the past.
>>
>> Are the diodes going into saturation?  I am going BANNAS with this issue.
>>
>> -- 
>> Jim K9TF
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>
>
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