Hi Harry You have 2 ways to do this and extending USB is not the best choice if it would work at all.
Depending on how far the run is, it might be able to do it via RS232 (from your USB connector) direct into back of devices. While the spec for RS232 is about 20ft or less, I currently run RS232 over 120' at 9600 baud. That is fast enough for these devices. You don't need to go to 38,400 baud as that will limit your cable length. This is what I do on my remote base for my Steppir and Rotator control and the tower is 120ft away from the computers. I don't use any tuners, as that is one less thing to worry about. None of my equipment is heated and I have seen it work down to -30C without issue. Your other option is to run a LAN cable and use RS232 over IP adapters such as https://www.amazon.com/USR-TCP232-306-Serial-Ethernet-Converter-RS232/dp/B01MXWACF3/ref=sr_1_8?ie=UTF8&qid=1493985728&sr=8-8&keywords=rs232+lan. The guys are RS485.com have some cool stuff as well. www.rs485.com You run some software in your computer that will run the Elecraft software. From Elecrafts perspective, it looks like a normal serial port. On the other end the KPA500 plugs into the device above. One last option is to use RS422 boxes that extend RS232 for miles. Don't forget, you will need good AC power installed. If you can, I would recommend using 220V and not 115V as that will limit your voltage drop. I hope that helps Mike va3mw On Fri, May 5, 2017 at 1:47 AM, Ken K6MR <k...@outlook.com> wrote: > One thing to watch is the length of the USB cable. Over about 15 feet or > so (I believe the spec is 5 meters) you’ll need an active repeater cable or > some alternate connection method. I use an Ethernet to serial port server > with a fiber link between the desk and the closet. Two KPAs and two KATs. > > Ken K6MR > > From: Harry Yingst via Elecraft<mailto:elecraft@mailman.qth.net> > Sent: Thursday, May 4, 2017 8:02 PM > To: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> > Subject: [Elecraft] Remoting the KPA500 & KAT500? > > More and more I'm considering remoting my KPA500 out of the shack,mostly > becuse of the heat and secondly because of the fan noise. > In doing so it would proably make sense to move the KAT500 along with it. > Then it would be a matter of routing one coax from the K3 to th amp, and > a USB cable with a hub for the two usb to serial adapters for the amp and > tuner to plug into. > I already use the control programs to oprrate the amp andtjner and rarely > touch them. > > I figured I'd ask first, since I'm pretty sure others have done this and > could let me know if there is anything I should watch out for. > > Thank you > > ______________________________________________________________ > 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 > Message delivered to k...@outlook.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 > Message delivered to va...@portcredit.net > ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
