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Re: Any way to automatically bypass K3 ATU when using KPA500?

Posted by AC6JA on Jun 15, 2012; 12:49am
URL: http://elecraft.85.s1.nabble.com/Any-way-to-automatically-bypass-K3-ATU-when-using-KPA500-tp7557636p7557657.html

Of course the KAT500 is on order!  I placed my order over the phone  the
first day it became available, hihi!
I just think the internal K3 ATU should not be tuned into the theoretical  
50 ohm input of the KPA500.  Aren't there internal losses through the ATU  
components that don't need to happen if the tuner is bypassed?
I "assume" a firmware change could allow the ATU status to follow the OPER  
and STBY modes like the different power levels?
Just wonder how everyone else has their K3/KPA500 set up?
 
Mike  AC6JA
 
 
 
In a message dated 6/14/2012 2:02:49 P.M. Pacific Daylight Time,  
[hidden email] writes:

Yes, I  was wondering how he was tuning with the amp on too...
Of course we just  need to sell him a KAT500!
Keith WE6R

On 6/14/2012 11:10 AM, iain  macdonnell - N6ML wrote:

> I think you're missing the point, Keith ...  or maybe I am. If you tune
> the KAT3 to match the amp, then it will not  match the antenna when the
> amp is out of line. Of course this somewhat  begs the question; how is
> the antenna being matched when the amp is  active? Maybe it's close to
> 2:1, which is still acceptable, but the  original poster wants to use
> the KAT3 to get a better match when  operating barefoot...
>
> 73,
>
>       ~iain / N6ML
>
>
>
> On Thu, Jun 14, 2012 at 10:42 AM,  Keith<[hidden email]>  wrote:
>> If you have the  optional Aux cable, set the K3 power set to "Per Band",
>> then you  can have different power levels depending on the OPerat or
>> Stndby  mode of the KPA500. You will just have to go thru once and set
>> the  levels to get 500 out (and whatever you want for Stndby).
>> The KAT3  is never really bypassed, it is just put into default settings
>>  that are matched for a dummy load.
>> I would tune the ATU into the  amp and leave it on.
>> Keith WE6R
>>
>> On  6/14/2012 10:00 AM, iain macdonnell - N6ML wrote:
>>> On Thu, Jun  14, 2012 at 7:51 AM, Don Putnick<[hidden email]>    
wrote:
>>>> Just out of curiosity, any particular reason you  want to bypass the
K3 ATU?

>>> Presumably because any stored match  settings would be impertinent when
>>> feeding the amp, vs.  feeding the antenna(e) directly.
>>>
>>> The real  question is; why would you ever want to operate without the
>>>  amp?? *grin*
>>>
>>>       ~iain /  N6ML
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