I've not checked in detail what PTT inhibit the KX3 has, but I have tripped it up on one occasion in the past, but I forget how how I un-tripped it!
Certainly in some circumstances an external "interlock loop" could be useful to have, or a key switch on the front! On my TS870s, Menu 27 set to ON, utterly disables the front panel TX and Tune buttons, and both the Mic PTT, Aux TX line, VOX and the CAT TX command! It's state is remembered when powered Off too, so is useful if you have kids (or cats) in the house and when developing custom software that will use the radio. (The Aux port TX line needs to be used, so as to route digi-mode audio from that port to air, and mute the Mic.) Many Kenwoods also have a "feature" that if the Mic PTT is active when they are powered up, they will not TX, but locks out the transmit ability. Many have been caught out by a faulty Mic that way! I don't know, but maybe Elecraft have implemented that last one, I've not tried that on the KX3. If I remember, I'll try later. I do know that if you momentarily feed the KX3's Mic jack's PTT line a +ve voltage (I forget exactly, but somewhere greater than +3V) it will power up the radio from the OFF state! Very useful for a QRP remote. Once "awake" the PTT line works as normal. A CAT command is used to power down the rig when you're done. 73. Dave G0WBX. On 15/11/2018 02:13, [email protected] wrote: > Without an eternal control line (inhibit), the Kenwood TX Inhibit > is more like the Elecraft Test Mode (allows operation but no RF > output). I'm looking for that external control. > > 73, > > ... Joe, W4TV -- Created on and sent from a Unix like PC running and using free and open source software. :: ______________________________________________________________ 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]
