[TenTec] Built in SWR meter bannans

[Kim Elmore]

By definition, no. You almost certainly are enjoying an unbalanced 
current on your feed line, likely a current on the outside of the coax 
shield causing an erroneous reading. You'll need to alleviate that to 
avoid the problems you're seeing. A good 1:1 current-type balun is the 
key to fixing such problems. Something like either a good choke balun or 
a W2DU-sort of balun.

73,

Kim N5OP


On 4/21/2013 3:54 PM, jack wrote:
> would an unun help to keep common mode current from flowing?
> jack
> ak7o
>
>
> -----Original Message----- From: Jim GM Sent: Sunday, April 21, 2013 
> 10:13 AM To: Discussion of Ten-Tec Equipment 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.
>