There’s a configuration choice to enable antennas based on band. See the KAT500 Utility , configuration, enabled antennas. Maybe the previous owner disabled some antenna connectors.
73 de Dick, K6KR > On Jun 21, 2025, at 09:08, Eckhart via Elecraft <[email protected]> > wrote: > > Hello > > I aquired a used KAT500 for use with ma K3S/KPA500. > Even after a software update the tuner will not allow a changing of the > antenna. It stays on ant1. > The same, when operating from the utility. > Any ideas what this may be? > > Eckhart Neumann > DK2LJ > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
