[TenTec] Eagle problem?

[Bob McGraw - K4TAX]

My 256 ft center fed wire shows a 1.0 amp current in one leg and a 1.1 amp 
current in the other leg.  One leg goes through the top of a tree while the 
other is over grass.  Depending on season, leaves or no leaves there is a 
noticed difference in balance/unbalance but no so as to cause a problem. 
These measurements were done with a single Weston RF Ammeter, 0 - 2A F.S., 
with internal thermocouple. Measure one leg and note the current and then 
measure the other leg.  Pretty easy  What were the currents you measured?  .

The balanced feed systems are much more forgiving than many realize.

73
Bob, K4TAX




----- Original Message ----- 
From: "Carter" <k8vt at ameritech.net>
To: <tentec at contesting.com>
Sent: Thursday, May 15, 2014 2:24 PM
Subject: Re: [TenTec] Eagle problem?


> On 5/14/2014 7:38 PM, Bob McGraw - K4TAX wrote:
>
>> If the line is operating  anywhere near a balanced
> > condition there will be little to no radiation from the feed line.
>
> Well, I guess it depends on your definition of "little" radiation. In my 
> case, I have measured greater current in one leg of the ladder line than 
> the other. This does not surprise me in that the antenna itself (132 foot 
> dipole at 25 feet above ground) is anything but physically balanced. The 
> dipole is not in a straight line (bent at about 70 degrees), half of the 
> antenna is over grass, the other half passes over the house, different 
> halves are closer or further from trees, etc, etc all due to the lay of 
> the land and available mounting points (trees) -- 
> so, anything but "balanced". Unless you are very fortunate or have your 
> antenna in hypothetical free space, unequal currents i.e. feed line 
> radiation, is virtually unavoidable.
>
> 73,
> Carter   K8VT
>
>
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