Hi Julius and Craig,
Ordinarilly, I have my KAT100 in line to flatten my antennas. During the
alignment and test phase on the bench it was not used. I just had a watt
meter and dummy load connected. I usually have the power set to 100 watts
out
I will experiment to see if there is a power-out point below which the
current draw seems normal (15-20 amps) and report back.
John, W2GW
----- Original Message -----
From: "J F" <[EMAIL PROTECTED]>
To: "John Reiser" <[EMAIL PROTECTED]>; "Elecraft Discussion List"
<[email protected]>
Sent: Thursday, December 07, 2006 10:49 AM
Subject: Re: [Elecraft] KPA100/KAT100 on 160 Hi Current
Hi John,
Do you use the KAT100 with yours? Or is it just
straight to the load?
I do see a lot of RF in the shack with my sniffer on
160. It seems like it is coming from the sides of the
KAT100. I'm going to experiment this weekend,
hopefully, taking the tuner out of the line altogether
and see if it makes a difference.
I'll post as soon as I can.
Cheers,
Julius
n2wn
--- John Reiser <[EMAIL PROTECTED]> wrote:
Hi Julius,
Both my K2/100s, #4970 and #5570 exhibit excessive
current draw on 160
meters, as indicated by the ammeter on my 30 watt
Astron PS. It gets up to
27 or 28 amps. I use a 30 amp fuse. In every other
respect, my two
K2/100's work perfectly. Current draw on all the
other bands is less than
20 amps.
I don't have an antenna for 160, so I never transmit
on that band anyway,
and this is not a big problem for me. Still, being
a bit of a
perfectionist, it bothers me that it exists.
I mentioned it on the reflector a while ago.
Someone said they had the same
experience, but had no solution. Someone else
suggested that I retune the
80 meter bandpass filter to represent a compromise
between 80 and 160. I
tried that, but the excessive current draw continued
regardless of the
bandpass tuning. (Could it be due to the KPA100
going into oscillation at
the 160 frequency?)
When I saw your post, I became hopeful that it might
evoke a response from
someone who had come up with the definitive
solution. But so far there
hasn't been any.
Good luck and 73,
John, W2GW
----- Original Message -----
From: "J F" <[EMAIL PROTECTED]>
To: "Elecraft Discussion List"
<[email protected]>
Sent: Wednesday, December 06, 2006 5:49 AM
Subject: [Elecraft] KPA100/KAT100 on 160 Hi Current
> Well ARRL 160 is history now.
>
> As usual, with the K2 I heard more than I could
get to
> hear me ;o) Evidently I heard and worked more than
> some of the local contesters with "other" brand
> equipment heheh.
>
> Anyway I have a problem... I use the KPA100 with
the
> KAT100, and there may be no connection between the
> two, to stretch the bandwith of my antenna. If I
set
> the K2 for 100 watts (or just twist the knob far
> clockwise), the ALC does not kick in. In a key
down
> situation, the current keeps climbing until the
fuse
> blows. If I set it for 99 watts (I realize this is
not
> that precise) the ALC does function somewhat. I've
not
> tried it with a dummy load. The antenna was fairly
> well matched (1.2:1 at it best point)and has a
current
> balun on it. So this really shouldn't be
happening. Do
> I have a problem with the KPA?
>
> Thanks,
>
> Julius
> n2wn
>
>
>
>
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