[TenTec] RFI Solution

[Bob McGraw - K4TAX]

Jim:

Glad you found a solution.

Mine is to use a balanced feed on one of the antennas and a 1:1 current 
balun at the feed point on the other.  My station, Omni VI Plus, Centurion 
amp, and 238 tuner.  I'm on the 2nd floor in about the center of a wood 
frame house.  No RF ground available.  I have each piece of equipment fitted 
with a #10x30 stranded copper wire with a lug that is crimped AND soldered 
on each end.  Each goes to the lug on the back of the 961 power supply.  The 
supply picks up 3rd pin ground.  The amp is also fed direct from the house 
breaker panel with a piece of 4-10 AWG copper. That gives me L1, L2, 
Neutral, and Ground.

All lightning protection is done before the feed lines and rotor cable 
enters the house at the point they leave the tower.

Again, glad you found the solution.

73
Bob, K4TAX


----- Original Message ----- 
From: "Jim WA9YSD" <wa9ysd at yahoo.com>
To: <tentec at contesting.com>
Sent: Sunday, July 22, 2007 4:14 PM
Subject: [TenTec] RFI Solution


> Here is an RFI solution.  On my antennas I have not been able to get the 
> SWR on the Omni VI plus xcvr, Hercules II amp and the 253 Automatic 
> Antenna Tuner  down to 1:1 all at the same time.  The solution is 
> RadioWavz ISOX in line RF Isolation Transformer UNUN seen at 
> http://www.radiowavz.com/
>
>  I put the Grounding band towards the tuner at the output one since I only 
> use one output.  In moved my station shielded ground and attached it to 
> the grounding band.  Straightened every thing out.
>
>  RFI in the shack has also dropped off more.
>
>
> Keep The Faith, Jim K9TF/WA9YSD
>
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