I wish to interface my KX3 to my portable 10GHz transporter system. I have the transporter’s PTT sequencer configured to output a +ve TX Inhibit signal which I have been using to prevent my current I/F rig from transmitting until all relays have changed over to transmit. The current rig is a Yaesu FT-817.
I want to be able to simply switchover the PTT/TXInh cable between the two rigs, so that I can continue using the ‘817 as a backup in the event of some problem with the KX3, and so was intending to us the KX3’s ACC2 GPIO TX Inh +ve input just as I do the 817. However, it seems that the KX3 actually has some bias applied that requires to be pulled low to enable the transmitter, rather than looking for removal of the +ve signal. This will mean that I need more than to simple switch over the physical connectors on the umbilical cable. Although not insurmountable, it’s not exactly ideal. Anyone else done this or similar and, if so, what was your solution? 73 Chris Chris Cox, N0UK chr...@chris.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
