Sorry to pick you up on this Bill, but you've been rather misleading on
your description. A current choke (common mode choke) is not even 1:1 as
in a transformer, there is no ratio, primary to secondary. You rightly
say that you're using a CHOKE which is NOT a balun "balanced to
unbalanced transformer".
In the light of that, I apologise. My information regarding a balun is
useless to you. Sorry to have wasted your time.
BTW I also don't understand where the 1KW rating came from.
73,
Alan. G4GNX
------ Original Message ------
From: "Bill Coleman" <[email protected]>
To: "Alan - G4GNX" <[email protected]>
Cc: "Elecraft" <[email protected]>
Sent: 14/10/2020 18:45:11
Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m
It’s a current (choke) 1:1 balun. Ferrite beads over coax. There are no turns,
there is no primary.
On Oct 14, 2020, at 9:19 AM, Alan - G4GNX <[email protected]> wrote:
I presume that you disconnected the feeder from the balun when you did the DC
Ohms test? If not, there is something wrong because you should see almost a
dead (DC) short through the primary of the balun.
I must admit I put off replacing my antenna until I was forced to. Might be
the way to go. :-)
73,
Alan. G4GNX
------ Original Message ------
From: "Bill Coleman" <[email protected]>
To: "Alan - G4GNX" <[email protected]>
Cc: "Elecraft" <[email protected]>
Sent: 14/10/2020 13:39:06
Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m
I was not seeing any SWR shifts on this antenna. A check with an ohmmeter
shows no shorts.
This antenna is currently on the ground due to other work on the tower. I’m
considering replacing the antenna entirely. It’s been up over 10 years, and the
traps could use re-work.
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Bill Coleman, AA4LR, PP-ASEL Mail: [email protected]
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Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901
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