[Elecraft] KAT500 follows K3 RX freq

Robert Cunnings nw8l at whitemesa.com
Wed Aug 21 20:48:13 EDT 2019


Yes, I don't like the way the KAT500 follows RIT changes. Sometimes I 
cross a stored band slice boundary, the relays click and I know that if I 
transmit I'll be using the wrong tuning solution. I reported this as a bug 
back in 2014 [1] but I doubt it will ever get fixed.

Bob NW8L

[1] https://www.mail-archive.com/[email protected]/msg173968.html

On Wed, 21 Aug 2019, Andy Durbin wrote:

> " All I do is change RX frequency on the K3S and every thing else follows.  No RF required to switch things to the correct configuration for band, frequency and antenna."
>
> I think that having the KAT500 follow the K3 RX frequency is a really poor system design.  The tuner, and the tuner's frequency dependent antenna selection, should follow the transceiver transmit frequency.  Why does it matter? Well one day you will transmit with a large difference between TX and RX frequencies into the wrong antenna and with the wrong tuning solution.  This will fault the KAT500 and/or the KPA500 and could possibly cause damage.
>
> It actually works a lot better if the KAT500 and KPA500 follow the rig TX frequency and are properly configured before the transmission starts.
>
> 73,
> Andy, k3wyc
>


More information about the Elecraft mailing list