Ya' make my drool, Jim, thinking that I'd have a yard nearly big enough to
stick up a 60 or 120 foot full-size vertical plus a bunch of 60 to 120 foot
radials around the base for 80 or 160 meters. I even have to dream of having
enough room to do that on 40 at some future date.
If an end fed wire i
maximum needed. More is always better as regards
radilas, but after 4 the returns increasingly diminish.
73,
Sandy W5TVW
- Original Message -
From: "John Rader" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "Elecraft Discussion List"
Sent: Monday, Augus
As others have noted two radials is a minimum. They should be used in
balanced numbers, pairs.
You also may benefit to have one radial in each direction you wish to work,
as that increases the signals from that direction when you have only one
radial in that direction. Pairing radials is suppose
lt;[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "Elecraft Discussion List"
Sent: Monday, August 02, 2004 10:03 AM
Subject: Re: [Elecraft] Long wire balun question
| Don,
| I currently have the antenna attached to a good earth ground and will add
| radials for each ban
John,
For your long wire situation, one set should be sufficient to provide
adequate RF grounding at your tuner loaction - or if you prefer you could
use an artificial ground instead (see recent discussion on the reflector).
The situation with a monopole antenna is quite different than feeding a l
Don,
I currently have the antenna attached to a good earth ground and will add
radials for each band per your suggestion. I understand that radials can
significantly improve the efficiency of monopole antennas. Should I try to
add more then one radial per band?
Thanks,
John K5XTX
John,
There is not much you can do about the antenna efficiency short of changing
the physical characteristics of the antenna itself - if it works, it works
and the voltage/current relationship at the feedpoint will determine its
impedance and how easily it can be matched.
A balun does not make s
I put up a 125' long wire antenna at 35' this weekend. It tunes up well
10m-80m running directly to the KAT2. I am wondering if I should ad an
unbalaced feedline and a 4:1 current balun between the tuner and antenna.
Would this reduce potential RF in the shack or change the antenna's
efficiency
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