[Elecraft] KAT500 problem

[Tom H Childers]

In your original post you say that you turned on the KPA100 in the
K3.  You should have the KPA100 turned off when using the KAT500. The
KAT100 is not needed when using the KAT500.

Make sure that when you are tuning with the KAT500 the TUNE POWER is
set to 25W.  Below 20W will not give an accurate tune-up.
Instructions for adjusting the TUNE POWER are in the K3 manual.

Also, you should tune the KAT500 by using the TUNE button on the K3.
Instructions for using the TUNE button are also in the K3 manual.

My recommendation is that you check all of your KAT500 and KPA500
connections carefully by referring to the manuals for each one and
then read the tuning procedure for the KAT500 in the manual,
following each step carefully.

Good luck!

73,
Tom
Amateur Radio Operator N5GE
ARRL Lifetime Member
QCWA Lifetime Member 

On Sun, 13 Jan 2013 11:37:53 -0500, Hunsdon Cary III
<h3cary at gmail.com> wrote:

>Following up on my High SWR problems (no response from Elecraft Support on Friday to my email):
>I disconnected the KAT500 and KPA500 and connected A4S feed-line directly to the K3.  It loaded beautifully and the internal tuner read 1.0-1.  Good, not the feed line or the K3

>Next I connected the KPA 500 (without the KAT500) and turned the K3 on
.the display "froze" a few characters into the "welcome K4TM"  message and the power button would not turn the K3 off - I had to turn the Astron 35M off to cut power to the K3.  When I turned the K3 on again, I get a blank screen and must shut the power supply off to turn the K3.
>I've had a Kenwood 520SE and a 570D and a TenTec Omni Vii - Drake TR-4 before all that and I know the K3 is smarter than I am but I have never encountered issues like this before!  Any ideas?
>Thanks for listening and any help that is directed my way!
>And I guess I won't be checking into the Elecraft net today as a result.
>73,
>Cary, K4TM
>On Jan 11, 2013, at 2:30 PM, Hunsdon Cary III <h3cary at gmail.com> wrote:
>
>> FYI
.H
>> 
>> Begin forwarded message:
>> 
>>> From: Hunsdon Cary III <h3cary at gmail.com>
>>> Subject: Fwd: KAT500 problem
>>> Date: January 11, 2013 2:23:22 PM EST
>>> To: "k3support at elecraft.com" <K3support at elecraft.com>
>>> Bcc: Ralston Gober <rbglsg at yahoo.com>, Barry + Mary Rounds <barry.rounds at yahoo.com>
>>> 
>>> More info on my problem.  I bypassed the KPA500 and KAT500, turned them both off, along with the K3
>>> I turned the K3-100 on and activated the internal auto tuner and it worked its magic and said SWR was 1.1
>>> I then keyed the mic and made a call and within 5 seconds the K3 shut down
the display blinked a few times and no ERR message showed before it shut down.
>>> Perplexed, you bet!
>>> 73,
>>> Cary, K4TM
>>> 
>>> Begin forwarded message:
>>> 
>>>> From: Hunsdon Cary III <h3cary at gmail.com>
>>>> Subject: KAT500 problem
>>>> Date: January 11, 2013 2:15:37 PM EST
>>>> To: k3support at elecraft.com
>>>> 
>>>> HELP, please.
>>>> 	I have the K3-100, KPA-500, and KAT-100 (factory built tuner).  I know to activate the tuner before turning the K3 on (it does make a difference).
>>>> 	When I turned everything on for a schedule today, I am experiencing high SWR and the K3 shuts down
also, when I go to tune the KAT500 and tap the TUNE button, the AUTO begins to flash but when I key the mic (HEIL MD-2) with audio it clicks and clacks for awhile and SWR drops to 1.2
>>>> 	When I then put the KPA-500  in operate, I get red lights for high SWR and the amp goes to STBY with the FAULT light lit and the K3 shows FAULT 9 which the manual is "excessive reflected power (high SWR).  Well, the KAT500 says otherwise and I am at a loss to figure it out.
>>>>        My antenna is a Cushcraft A4S with 110 feet of high quality RG-8 and everything was working just fine a week or so ago.
>>>>        Last Sunday, I did turn the K3 on and my Vibroplex keyer was connected.  I came in about 30" later and noticed an ERROR message: ERR KEY  Apparently the Viproplex was keyed when I turned power on and I have disconnected it - could this have anything to do with it?
>>>>       Appreciate any help you can give.
>>>> 	73,
>>>> 	Cary, K4TM
>>>> 
>>>> H. Cary III
>>>> h3cary at gmail.com
>>>> 
>>>> 
>>>> 
>>> 
>>> H. Cary III
>>> h3cary at gmail.com
>>> 
>>> 
>>> 
>> 
>> H. Cary III
>> h3cary at gmail.com
>> 
>> 
>> 
>
>H. Cary III
>h3cary at gmail.com
>
>
>
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