Hello Olli, The advantage is that I could possibly pull out the RTS line from my one RS232 cable to the computer, and simply add it to the amplifier PTT plug in ACC2. I would not have to build a transistor switch to directly trigger the PTT line, which would have to be broken out from the custom MIC plug.
There appear to be several different ways that I could force the KX3 into XMIT from the computer's RTS serial port line, and I will have to try to figure out the simplest way, with the KX3-compatible plugs that I can find. I THINK I could plug a standard right/left audio splitter into the MIC jack, and plug a mono mic plug from my headset or the computer LINE OUT into one side and a PTT signal (from a switching transistor activated by the RTS line, or from a footswitch) into the other side. I think I may have to wait until the KX3 arrives, and I can actually see how the connectors (and computer cables) work with it, before I can make a final decision on what course to take. Like the K3, one of the big advantages seems to be that it is very flexible radio, and there is probably some way to make it do just about everything you need ;-) VY 73, Lance On 3/5/2012 7:27 PM, Oliver Dröse [via Elecraft] wrote: > > Wayne's suggestion that there may be a way to send an RTS signal to the > > GPIO > > connection on the tip of the ACC2 plug is very intriguing, and I am just > > trying to > > figure out what interface cable(s) I would use and what I would need to > > build to be > > able to maintain the ACC1 operation along with the amp activation through > > the ACC2, > > while adding the RTS line from somewhere to the tip of the ACC2 cable ;-) > > Lance, what's the advantage of using the KX3's GPIO pin for PTT over the PTT > line on the mic connector? You have to plug-in the audio cables for WSJT > anyway and need a separate line for PTT on the computer side anyway, too. > The only advantage I could see is you do not need an adapter on the 4 pin > (TRRS) mic connector of the KX3, but that's about all. ;-)) Hw? > > Vy 73, Olli - DH8BQA > http://www.dh8bqa.de/ > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] </user/SendEmail.jtp?type=node&node=7346084&i=0> > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > ------------------------------------------------------------------------------------- > If you reply to this email, your message will be added to the discussion > below: > http://elecraft.365791.n2.nabble.com/Elecraft-KX3-Owner-s-Manual-now-available-preliminary-tp7343177p7346084.html > > To start a new topic under Elecraft, email > ml-node+s365791n365791...@n2.nabble.com > To unsubscribe from Elecraft, click here > <http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=365791&code=dzdnakBxLmNvbXwzNjU3OTF8OTMyNDMwOQ==>. > NAML > <http://elecraft.365791.n2.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> > -- 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: w...@hotmail.com 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)! -- View this message in context: http://elecraft.365791.n2.nabble.com/Elecraft-KX3-Owner-s-Manual-now-available-preliminary-tp7343177p7346152.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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
