[mailto:guyk...@gmail.com] På vegne af Guy Olinger K2AV
Sendt: 26. maj 2011 19:32
Til: Poul Erik Karlshøj (PKA)
Cc: David Cutter; drewko; Elecraft@mailman.qth.net
Emne: Re: [Elecraft] K3 antenna tuner question
Having a lot of water around means that the antenna impedance changes with the
power level. I have
FRed, I agree with everything you wrote, except I think you'll find CONFIG:TUN
PWR control the power used when you HOLD TUNE - it controls the power used for
'key down' to tune an external ATU.
The KAT3 will use a much lower power than that for it's internal tuner I
believe.
73 de M0XDF, K3
Ferrington, M0XDF
Sendt: 26. maj 2011 08:28
Til: k6...@foothill.net
Cc: Elecraft Reflector
Emne: Re: [Elecraft] K3 antenna tuner question
FRed, I agree with everything you wrote, except I think you'll find CONFIG:TUN
PWR control the power used when you HOLD TUNE - it controls the power used for
'key
As I recall, the K3 uses a combination of 5w and 10w during the auto tune
routine. This is independent of the TUN:PWR setting. From observation, there is
a fair amount of difference in measured SWR at lower power levels which begins
to stabilize around the 5w level.
73,
Chuck, AA3CS
Sent from
A quick way to find the best LC combinations manually is to tune them
for maximum receiver noise. You can refine this further by using the
K3's AFV meter to measure the noise level of the different promising
LC combinations.
I have done this on some problem frequencies to improve the match over
On 'problem' frequencies, re-doing the tune soon after the first try has
always brought a better swr for me, but I have no wires amongst branches
which I think means you may be getting hit and miss good tunes.
David
G3UNA
A quick way to find the best LC combinations manually is to tune them
...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net]
På vegne af David Cutter
Sendt: 26. maj 2011 14:54
Til: drewko; Elecraft@mailman.qth.net
Emne: Re: [Elecraft] K3 antenna tuner question
On 'problem' frequencies, re-doing the tune soon after the first try has always
brought a better swr
antenna tuner question
On 'problem' frequencies, re-doing the tune soon after the first try has
always brought a better swr for me, but I have no wires amongst branches
which I think means you may be getting hit and miss good tunes.
David
G3UNA
A quick way to find the best LC combinations
I have a K3/100 with the internal antenna tuner. The config is set to AUTO
but it seems that I still have to press the ATU tune button to get the ATU
to properly tune when I change bands. Is it supposed to be automatic or not?
--
View this message in context:
On Mon, May 23, 2011 at 7:45 PM, Bill Swindell - K1LED
bill.swind...@att.net wrote:
I have a K3/100 with the internal antenna tuner. The config is set to AUTO
but it seems that I still have to press the ATU tune button to get the ATU
to properly tune when I change bands. Is it supposed to be
Automatic is a word with lots of meanings. When it is in AUTO and
you tap ATU TUNE, it will automatically find a match using the power
you have set in CONFIG:TUN PWR. Mine is set to 5W. It then remembers
the L/C settings for that band segment for the ANT selection you are
using [1 or 2].
It is also engaged/bypassed per band per antenna according to the
remembered setting on that band/antenna combination. 73, Guy.
On Wed, May 25, 2011 at 6:38 PM, Fred Jensen k6...@foothill.net wrote:
Automatic is a word with lots of meanings. When it is in AUTO and
you tap ATU TUNE, it will
On 5/25/2011 3:20 PM, Alexander Sack wrote:
I'm confused, are their radios that in real-time tune a LC network to
whatever band/frequency you are on?
If you mean they tune for a match every time you press the key, I don't
think so. Most ATU's remember settings as the KAT3 does so they don't
The tuner works great, but tunes at just 5 watts. I have the 100 watt amp.
Should it tune at say around 20 watts?
Lee - K0WA
In our day and age it seems that Common Sense is in short supply. If you don't
have any Common Sense - get some Common Sense and use it. If you can't find
any
Ladies and Gents
What is the sound level of the K3 automatic antenna tuner? The KAT-100 is
rather loudsounds like the grinding of gears in my old 57 Chevy, just
before it blew. So, I am wonder what the sound level is for the K3 auto tuner.
Lee - K0WA
In our day and age it seems
Noticeable, but not excessive.
Not like the castanet sounds of the KAT100 !
73
Stewart G3RXQ
On Wed, 30 Jan 2008 06:33:11 -0800 (PST), Lee Buller wrote:
Ladies and Gents
What is the sound level of the K3 automatic antenna tuner? The
KAT-100 is rather
loudsounds like the grinding of
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