Setup is Yaesu FTDX3000 xcvr --> Elecraft KPA500 amp --> LDG AT1000ProII tuner. I am using a cable between the FTDX3000 and KPA500 to transfer band data and the key line (KPA500 Aux Pin 10). I would like to use the open-collector interface on the AT1000 (which is pulled low during tuning) to pull the KPA500 Inhibit (Aux Pin 11) line low so that I am not running high power into the tuner during tuning. (Note: I will also at the same time use the open-collector output to pull the correct line of the FTDX3000 low to enter the low power CW key-down mode.)
Any "gotchas" with this scheme? The KPA500 will be keyed up via Aux pin 10 at the same time it will be inhibited via Aux pin 11. Is there a delay I have to be worried about? Is there an order of the pull-downs that matters? Am I going to get a few msec bump of high power? I realize that one normally interrupts the amp via the key line, but it seems a little more straightforward in my particular case to do it via the inhibit line. Jim, K2WU ______________________________________________________________ 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]
