[Elecraft] K3/KPA500/KAT500 SWR Problem

[Richard Thorne]

That would be very slick, the tuner and amp would be ready to go after a 
frequency change.

Rich - N5ZC

On 12/30/2013 6:30 PM, Wayne Burdick wrote:
> At present the KAT500 gets only band number, not VFO frequency, from the K3. We're looking at possible firmware changes that would give the KAT500 VFO info or otherwise prepare it better for the next transmission at the new in-band frequency. Details later.
>
> Wayne
> N6KR
>
> On Dec 30, 2013, at 4:15 PM, "Cady, Fred" <fcady at ece.montana.edu> wrote:
>
>> With the 15-pin network (I like it!), the KAT500 knows the band and selects the last used antenna and L-C for that band.  It doesn't know the frequency until you transmit when it can select the ant and L-C from the segment memory (which could be different than the last used on the band, if you were on the bottom of the band and come back on and transmit on the top of the band).
>>
>> -----Original Message-----
>> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Fred Jensen
>> Sent: Monday, December 30, 2013 3:58 PM
>> To: Elecraft Reflector
>> Subject: Re: [Elecraft] K3/KPA500/KAT500 SWR Problem
>>
>> My K-line is all connected via the "Elecraft 15-pin Network."  If I remember correctly, it's:
>>
>> computer-->P3-->K3-->KAT500-->KPA500
>>
>> or something like that.  I was under the impression that the KAT500 already knows what frequency I'm about to transmit on and is ready for me, even before it senses RF?
>>
>> 73,
>>
>> Fred K6DGW
>> - Northern California Contest Club
>> - CU in the 2014 Cal QSO Party 4-5 Oct 2014
>> - www.cqp.org
>>
>> On 12/30/2013 1:45 PM, Cady, Fred wrote:
>>> Hi Fred et al, I think CW operators have not had the same level of
>>> problems as SSB operators, unless they are using high speed CW.  The
>>> tuner seems to get all the information it needs in about a dits worth
>>> of RF.  But I think it has to be pretty constant RF and the varying
>>> SSB waveform may be causing the problem. I think training (using a
>>> steady CW carrier) and then operating in MAN mode is the key, given
>>> there aren't other things going on such as RF that others have
>>> suggested.
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