I don't have a linear amplifier. I do have a transverter, and I use the KEY OUT jack to put it into TX. Trouble is, it puts the transverter into TX whatever band I'm using. For LO stability reasons (not to mention that I can never remember to switch the transverter off when I'm not using it) I'd prefer to be able to leave the transverter switched on but only receive a PTT signal when the VHF band is selected. I think that means I'd need a circuit that combines the state of DIGOUT0 with KEYOUT-LP, such that it grounds the transverter PTT input when DIGOUT0 is 0V and KEYOUT-LP is grounded. Has anyone made something like that?
----- Julian, G4ILO. K2 #392 K3 #222. * G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html -- View this message in context: http://n2.nabble.com/KEYOUT-PTT-only-when-transverter-band-selected-tp3246434p3246434.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
