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@yahoo.com>
To: <tentec@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
---------------------------------
Boardwalk for $500? In 2007? Ha!
Play Monopoly Here and Now (it's updated for today's economy) at Yahoo!
Games.
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