[Elecraft] Tuning Random-Length Wire Antenna with K3 Internal Tuner??
donovanf at erols.com
donovanf at erols.com
Sun Dec 13 00:19:09 EST 2020
Hi Mike,
You do have an alternative:
Rather than using a random wire length, chose a wire length that
produces well under 10:1 VSWR on the frequencies you intend to use.
For end fed random wires, avoiding wire lengths close to multiples
of 1/2 wavelength should be safe with the K3 tuner.
73
Frank
W3LPL
----- Original Message -----
From: "Mister Mike" <w1rc at near-fest.com>
To: donovanf at erols.com
Cc: elecraft at mailman.qth.net
Sent: Sunday, December 13, 2020 1:04:26 AM
Subject: Re: [Elecraft] Tuning Random-Length Wire Antenna with K3 Internal Tuner??
That is pretty much what I thought. I will have to read the fine manual and see how the automatic tuner works. Picked up this K3 in a swap deal a while back but I am still pretty much stuck ( happily) in the Collins KWM-2/S-Line “Stone Age” so I need time and patience (lots) to figure how to use these marvelous appliance radios.
In any event I have a MAC-200 made by SGC who make pretty darn good tuners which I can use but that is another box to take along if I do a road trop.
73 to all....
Michael, W1RC
On Dec 12, 2020, at 6:37 PM, donovanf at erols.com wrote:
<blockquote>
Hi Mike,
</blockquote>
<blockquote>
Its not wise to use the K3 antenna tuner to tune a random wire.
A truly random wire can easily produce VSWR greater than 10:1
which is likely to damage the K3 tuner when running at full
K3 output power.
Its much wiser to use an external tuner with a random wire
73
Frank
W3LPL
-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On Behalf Of Mister Mike
Sent: Saturday, December 12, 2020 9:42 AM
To: elecraft at mailman.qth.net
Subject: [Elecraft] Tuning Random-Length Wire Antenna with K3 Internal Tuner??
What is the best way to do this? I am not familiar with automatic tuners.
</blockquote>
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