I think pages 12 and 13 of the KXPA100 manual are pretty clear. That shows a cable from the KXPA100 to the PC at jack labeled “RS232 (PC)”.
This is the explanation from page 13. "Personal Computer Interface Cable: All communications with both the KX3 transceiver and the KXPA100 amplifier take place through this cable. This cable is not required, but provides enhanced capability to operate the KXPA100 using the KXPA Utility program, for updating firmware in either the KXPA100 or KX3 and other functions (see Utility Program, page 32 for details.) Also, this cable provides communications between your PC and the KX3 through the KXPA100. You do not need to connect the KX3 directly to your computer. Simply load the KX3 Utility program, be sure you have the correct serial port selected, and your computer will find the KX3 as long as it is powered on.” wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Mar 1, 2019, at 2:38 PM, Brian <[email protected]> wrote: > > I am interested in running a KXPA100 with my KX3... but there is something I > cannot figure out. > IF I am using my KX3 currently with a compter (to use NaP3) I am running the > COMM/serial cable from ACC1 to a USB port, as well as the RX I/Q cable to a > USB port... right? > > From my reading of the manual.. if using the KXPA100 I have to run two cables > from ACC1 and ACC2 to an adapter box that then goes to the Control input on > the KXPA100. If I am therefore using the ACC1 port for the KXPA100.... I > don't have the port available for the computer to see the KX3 info.. right? > Therefore NaP3 has no rig or frequency info to use. > > Or can I use the RS232 (PC) port from the KXPA100 to provide info to the > computer (though I would actually NOT want RS-232 physical type port for > this... only USB.. since laptops don't generally have RS-232 any longer.) So > can I use the Elecraft ACC to USB cable for that? > > Is there a solution to this setup...... or is it that use of the amp and its > requisite interconnections precludes the availability? > > Its a bit confusing since I know the update info has to be made available > somehow FROM the PC and to the KX3 in order to do firmware updates via the KX > Utility. > > By know you will have realized that having NaP3 on my K3 has spoiled me and > its a 'must'...otherwise I will just leave my KX3 as a QRP rig only and > forget about the KXPA100 operation. > > > Brien VE3VAW > > > Sent from Outlook<http://aka.ms/weboutlook> > ______________________________________________________________ > 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 ______________________________________________________________ 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
