K2 separation cable (front panel)

[Andrew Moore-4]

Any suggestions for cabling between a K2 front panel and the rest of its body
for distances of around 5 to 10 feet?  I suspect that many signals are such ow
frequency that I don't need to be too concerned, but what signals might need
special attention? (shielded twisted pair, coax, ...) -- any suggestions?


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[James Kern]

Perhaps some shielded scsi cable? Our main email server has about 30ft of it
between it's disk drives and the CPU.

James Kern
Network Administrator
Kurt S. Adler, Inc.
1107 Broadway
New York, NY 10010
212-924-0900 x222 (work)
212-807-0575 (fax)
908-451-6801 (cell)
800-209-7438 (pager)
[hidden email]


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Andrew Moore
Sent: Wednesday, August 10, 2005 3:02 PM
To: Elecraft
Subject: [BULK] - [Elecraft] K2 separation cable (front panel)


Any suggestions for cabling between a K2 front panel and the rest of its
body
for distances of around 5 to 10 feet?  I suspect that many signals are such
ow
frequency that I don't need to be too concerned, but what signals might need

special attention? (shielded twisted pair, coax, ...) -- any suggestions?


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[W6IZT]

I just performed the KPA100 cap mod to as I had a HiCur indication.
Replacing C80 and C81 did not correct the problem. After the mod I am seeing
the following indications as read on the K2 display.

KPA100 off 20 meters
12.8v 2.62a 13.7watts

KPA 100 on 20 meters
11.9v 4.04a 98 watts

The power supply is delivering 13.2v key down with the KPA100 as measured at
my DC distribution point.

I have checked all of the solder joints on the KPA100 input network. No
problems were found. Operation on other bands seems to be OK.

Any help is greatly appreciated

Gregg
W6IZT



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[Don Wilhelm-3]

Gregg,

The capacitors are not the problem - never were, that was a premature
conclusion (the cap change seemed to work at first).  The real problem is
that the manufacturer changed the 1.6 ohm 2 watt resistors to an inductive
design and did not notify Elecraft.

Give Scott a call or email [hidden email] to request 2 replacement
resistors.  You can likely leave the 5600 pf capacitors in place with no
problem, or you can change them back to the 4700 pf value if you prefer.

73,
Don W3FPR

> -----Original Message-----
>
> I just performed the KPA100 cap mod to as I had a HiCur indication.
> Replacing C80 and C81 did not correct the problem. After the mod
> I am seeing
> the following indications as read on the K2 display.
>
> KPA100 off 20 meters
> 12.8v 2.62a 13.7watts
>
> KPA 100 on 20 meters
> 11.9v 4.04a 98 watts
>
> The power supply is delivering 13.2v key down with the KPA100 as
> measured at
> my DC distribution point.
>
> I have checked all of the solder joints on the KPA100 input network. No
> problems were found. Operation on other bands seems to be OK.
>
>

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