Andy, Kenwood rigs have master/slave menu options designed to enable one Kenwood rig to follow the frequency of another. The KAT500 manual recommends enabling these options, but I cannot confirm if they affect the frequency reported by the FA; command. If you have a null modem cable, can you please connect it to the TS-590 COM port when these options are enabled, and report what gets output when SPLIT is ON?
TS-590S: Set *Menu 58* TRANSFER SPLIT FREQUENCY DATA TO ANOTHER TRANSCEIVER to *ON* Set *Menu 59* COPY SPLIT FREQUENCY DATA TO VFO to *ON* TS-590SG: Set *Menu 64* TRANSFER SPLIT FREQUENCY DATA TO ANOTHER TRANSCEIVER to *ON* Set *Menu 65* COPY SPLIT FREQUENCY DATA TO VFO to *ON* TS-890S: Set *Menu 7-04* Quick Data Transfer to *A (TX/RX)* Set *Menu 7-05 *Overwrite Location (Quick Data Transfer) to *VFO* TS-990S: Set *Menu 7-02* Quick Data Transfer to *ON* Set *Menu 7-03 *Overwrite Location (Quick Data Transfer) to *VFO* 73, Bob, N6TV On Mon, May 10, 2021 at 9:48 AM Andy Durbin <[email protected]> wrote: > "You can only connect a maximum of three antennas to a KAT500." > > Any time you use a KAT500 with multiple antennas connected, and you also > use a KPA500, you run the risk that the band change RF blip will fault the > tuner, or the amplifier, or both. This happens because the RF pulse gets > to the amplifier before the antenna is changed. This problem is not seen > if the antenna is switched by an automatic antenna switch separate from the > KAT500. > > The problem can be easily avoided by having KAT500 and KPA500 follow the > TX VFO when the transceiver is in receive mode. > > Kenwood (at least the TS-590) does not restrict which VFO is used for TX > or RX. In simplex operation either VFO can be in use. For split operation > either VFO can be the RX VFO and the other is the TX VFO. Kenwood also > allows memory channels to define TX and RX frequency. Memory channel > frequencies do not influence FA or FB. They only change IF. Following > Kenwood VFO A is, as I said before, a weak solution. Elecraft has known > for years how to use Kenwood IF, FA, and FB to extract the TX frequency > regardless of which VFO is in use. It's done in KPA500 and KPA1500. > > I still hold onto some fading hope that, when K4 demands less development > attention, Elecraft will release a firmware update for the KAT500. > > 73, > Andy, k3wyc > > > > > > > > > > > ______________________________________________________________ > 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]
