[Elecraft] KAT500 - Blinking Mode Light

Clay Autery KY5G at montac.com
Tue Aug 8 13:16:35 EDT 2017


Did not include that in original post, but I AM holding the XMIT/TUNE
button in to send the RF sig to KAT500.

See just prior response.

Also, K3s power set at ABOVE 7 watts,,,, both 10 Watts and above 12-13
to engage K3 PA...

Trying to tune using the KAT500 causes the blinking mode light and an
obvious break in the rf signal path to the antenna...
What is key is that KAT500 in Bypass, K3s in Bypass, TUNE gives 3.6:1...
Put KAT500 in Manual and TUNE on K3s gives 12.6:1 or higher.

Do it in AUTO and the KAT500 kicks out, blinking mode, 99.9:1 SWR...
obvious signal path disco.

73,

______________________
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389

On 8/8/2017 11:37 AM, ab2tc wrote:
> Hi Clay,
>
> I could easily reproduce your problem. Note: I do not have the AUX cable
> connected. Apparently you just pressed TUNE on the tuner. That will not
> start the K3 sending a tuning tone. Thus the blinking LED (MAN led if in
> manual mode, AUTO LED if in in AUTO mode). You must press and hold the TUNE
> button on the K3 to send the tuning power you have selected. The KAT500 will
> then instantly tune and the mode LED goes back to steady on.
>
> I don't know if this behavior is also present if the AUX cable is connected.
>
> AB2TC - Knut
>
>
> Clay Autery-2 wrote
>> Situation:  Tuner inline between K3s and known good dummy load.
>>
>> 1) Tuner off - K3s tunes 1:1 instantly
>> 2) Tuner on in bypass - K3s tunes 1:1 instantly
>> 3) Tuner on, and in Manual OR Auto Mode, tuner clicks and then Mode
>> light starts blinking.
>>
>> All components in signal path obviously AND tested known good.
>>
>> Any ideas where to start troubleshooting the malfunction?
>>
>> -- 
>> ______________________
>> Clay Autery, KY5G
>> <snip>
>
>
>
>
> --
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