WOW! That would be a GREAT option! I just measured the serial output from the USB cable on my laptop, and I have -6.23 on receive and +6.8 VDC on transmit between the RTS (7) and Signal Ground (5) lines. If it would work to simply stick a 1K or 10K resistor in series with the RTS line, it sure would be a lot more compact and fit better into a connector than resistors and 2N2222 ;-) MNI TNX for all your work! VY 73, Lance
On 4/15/2012 12:38 AM, Wayne Burdick wrote: > Lance Collister, W7GJ wrote: > >> Good news about the PTT IN on the ACC2IO ;-) I assume this will cause the >> KX3 to >> go into TX when the tip of ACC2 is grounded...correct? > > Yes. > > >> Any plans (if even possible) to offer the menu option make the KX3 go into >> to TX >> when the tip of ACC2 is HIGH (so it would work directly off the RTS serial >> port >> line when it goes high for TX)? > > I could provide both LO=PTT IN and HI=PTT IN options. Good idea. Note that > this is > 3-V logic (but 5-V tolerant). Anything outside the range of 0-5 V would > require > clamping or a large current-limiting resistor. > > Wayne > > > -- Lance Collister, W7GJ (ex WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR, 5W0GJ) P.O. Box 73 Frenchtown, MT 59834-0073 USA TEL: (406) 626-5728 QTH: DN27ub URL: http://www.bigskyspaces.com/w7gj Windows Messenger: [email protected] Skype: lanceW7GJ 2m DXCC #11/6m DXCC #815 Interested in 6m EME? Ask me about subscribing to the Magic Band EME email group, or just fill in the request box at the bottom of my web page (above)! ______________________________________________________________ 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
