[TowerTalk] Fwd: Fwd: Fwd: Fwd: Fwd: OWAs or Fans?

Hans Hammarquist hanslg at aol.com
Tue Jun 21 16:56:17 EDT 2016


Could be true. I also should have added that the 14 awg wire has some insulation and, I don't know if this matter, is twister multiwire. I don't remember what the wire is called but it is used as "hook-up" wire in equipment. The "unbalanced network analyzer" is probably of stronger influence but I just made it to see roughly where it was. It really was not of importance for me as I didn't know the exact feedpoint impedance and was planning to use a tuner anyhow.


I didn't think the balanced to unbalanced could be of that much importance as the feeder was several (~10) d - d distances above ground when tested.


Hans - N2JFS



-----Original Message-----
From: Richard (Rick) Karlquist <richard at karlquist.com>
To: Hans Hammarquist <hanslg at aol.com>; towertalk <towertalk at contesting.com>
Sent: Tue, Jun 21, 2016 2:45 pm
Subject: Re: [TowerTalk] Fwd: Fwd: Fwd: Fwd: OWAs or Fans?

My calculation of that line works out to 579 ohms.
Something doesn't add up here.  Probably explained
by trying to measure a balanced line with an
unbalanced network analyzer.  Or using a balun
you haven't calibrated out.

Rick N6RK

On 6/21/2016 10:44 AM, Hans Hammarquist via TowerTalk wrote:
> Sorry Ed,
>
>
> My feed line is an open wire, 14 AWG with a 4" spacing. I believe it have a Zo of about 400 ohm (I tested it by putting a 390 ohm resistor at the end and watching the SWR as a function of the frequency.) I made the line myself.
>
>
> Hans - N2JFS
>
>
>
> -----Original Message-----
> From: Edward McCann <edwmccann at yahoo.com>
> To: Hans Hammarquist <hanslg at aol.com>
> Sent: Mon, Jun 20, 2016 11:36 pm
> Subject: Re: [TowerTalk] Fwd:  Fwd:  Fwd: OWAs or Fans?
>
> And Hans,
>
> Your feedline is not described in your response. While I am assuming it is ladder or open wire feed, wound you mind being a bit more specific: maker, model number, impedance, etc.
>
> Thanks,
> AG6CX
>
>
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