[Elecraft] KAT1 impedance range?

Sat Jan 17 02:42:01 2004

Kevin, you can download the KAT1 manual and from the available values of  L
and C you can determine from L-network design the values of load impedance
that can be transformed to 50+j0 ohms for the transmitter. Similarly, you
can determine the SWR represented by complex loads.

Relative to the K2, the internal tuner for the K1 is rather limited but
useful.

73, George W5YR
[email protected]

----- Original Message ----- 
From: "Kevin Danks" <[email protected]>
To: "Elecraft Reflector" <[email protected]>
Sent: Saturday, January 17, 2004 1:32 AM
Subject: RE: [Elecraft] KAT1 impedance range?

> Thanks Phil. I'm thinking of ordering a K1 kit and I don't know whether to
> get the KAT1 with it. Given that the pound is so strong against the dollar
> it almost doesn't matter, because it will work out pretty cheap, but I'm
> conscious that many internal ATUs only work on a limited range of
> impedances. For example, the one in my IC756ProII does anything up to a
3:1
> SWR. My HF antennas are all doublets, fed through a 4:1 balun, and so I
use
> an outboard manual ATU. The KAT1 would be convenient though, if it can
> manage up to say a 6:1 SWR. Are there no published specifications for the
> current model and firmware?
>
> 73,
>
> Kevin Danks
> G0DBI
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of Phil Wheeler
> Sent: 17 January 2004 02:01
> To: Kevin Danks
> Cc: Elecraft Reflector
> Subject: Re: [Elecraft] KAT1 impedance range?
>
>
> Likely no easy answer, Kevin -- since the capability of the KAT1 has
> changed/improved with newer versions of the firmware.  It is a very
> effective ATU.
>
> 73, Phil
>
> Kevin Danks wrote:
>
> >I can't see the answer to this question on the website, so can someone
tell
> >me what range of antenna impedances the KAT1 will cover, or alternatively
> >the maximum SWR that it can handle?
> >
> >
> >
>
>
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be subscribed to post to the list.
> To subscribe or unsubscribe see:
> http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com
> Also see: http://www.elecraft.com/elecraft_list_guidelines.htm
>
> _______________________________________________
> Elecraft mailing list: [email protected]
> You must be subscribed to post to the list.
> To subscribe or unsubscribe see:
http://mailman.qth.net/mailman/listinfo/elecraft
> Elecraft Web Page: http://www.elecraft.com
> Also see: http://www.elecraft.com/elecraft_list_guidelines.htm