Re: my KPA1500 and 160M

Posted by Elecraft mailing list on Sep 02, 2020; 10:18am
URL: http://elecraft.85.s1.nabble.com/OT-WWV-Time-Transmissions-tp7664561p7664602.html

Perhaps it's more to do with the common mode impedance that these transformers/choke present.  Is the 4:1 a true Guanella or a Ruthroff or ?

David G3UNA

> On 02 September 2020 at 00:27 Rick NK7I <[hidden email]> wrote:
>
>
> If you model it accurately, you see that a 4:1 transformer will cause most (other than 160M) to have a closer match; while on a few the 1:1 device will work better.
>
> If convenient, try each.  They each offer (dis)advantages.
>
> Rick NK7I
>
> Email spiel Czech corruptions happen
>
> > On Sep 1, 2020, at 3:26 PM, Steve Hall <[hidden email]> wrote:
> >
> >  Additionally I find a 1:1 current balun
> > provides a better match than a 4:1.
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]