[Elecraft] KAT500 - Blinking Mode Light

[Clay Autery]

We did that, and it was an instant 1:1.... 

Finally figured it out... this particular KAT500 spent its life hooked
to a basic K3...  It was behind on firmware updates by ELEVEN versions...

Updated to current and it immediately started working...  The version it
had was PRE-K3s by several years.  :)

Problem solved!  Thanks to all who took the time to try and help!

73,

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

On 8/8/2017 8:26 PM, Bill Johnson wrote:
> Put a dummy load on output of KAT500 and if that doesn't give 1:1 then you have a cable issue.
>
> 73,
> Bill
> K9YEQ
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Clay Autery
> Sent: Tuesday, August 8, 2017 12:17 PM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] KAT500 - Blinking Mode Light
>
> 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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>> Nabble.com.
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