[Elecraft] Meaning of KAT500 flashing Auto light

[Gary Gregory]

Did anyone answer his query regarding the flashing LED?

If not:  it is awaiting a carrier to commence tuning.

Oh dear, here i go testing my memory again folks....i admit it can be a bit
iffy at times...

Gary
Vk1ZZ
K3, KX3, KPA500-FT, KAT500-FT,P3.
On 21/05/2014 7:24 AM, "Phil Wheeler" <w7ox at socal.rr.com> wrote:

> Don,
>
> By "latest firmware" do you mean latest released firmware or beta?  I ask
> because I may have seen that phenomenon, too, but have not been able to
> repeat it on a reliable basis.
>
> 73, Phil w7ox
>
> On 5/20/14, 7:11 AM, Don Wilhelm wrote:
>
>> Andy,
>>
>> There have been improvements in the firmware to address exactly that
>> re-tuning problem.  It has to do with the measurement of SWR - during SSB,
>> if the reflected power is sampled at a voice peak and the forward power is
>> sampled during a period of low RF, the resulting calculation will think the
>> SWR is high and re-tune. There have been changes made to the firmware to
>> attempt to smooth that measurement over a longer period of time.
>>
>> If you are not using the latest firmware, give it a try.
>>
>> After 'training' the tuner, you may want to run it in Manual mode rather
>> than letting it auto-tune 'on the fly'.
>>
>> 73,
>> Don W3FPR
>>
>> On 5/20/2014 8:44 AM, ANDY NEHAN wrote:
>>
>>> I am having some problems with my understanding of the KAT500.
>>>
>>> I have a K3 and an ACOM1000 linear. On 40m when I operate data modes or
>>> AM (purely for testing purposes) all is well the units work well together.
>>> I can happily run up to 400 watts and as is well. My 40m OCFD has an SWR of
>>> about 1.2:1.
>>>
>>> But when I operate SSB things go "odd". For no apparent reason the
>>> KAT500 starts to retune part way through and over and enters a fault
>>> condition (on the same frequency as I was using for data - so there is no
>>> frequency change involved) and the Auto button flashes. Now I have looked
>>> in the manual and cant find the meaning of the flashing Auto LED.
>>>
>>>
>>
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