I do miscellaneous switching chores at my remote station with two devices: a remotely-controlled AC power strip and a remotely-controlled DC relay board. Either could be adapted to your requirements IF your switch has digital inputs such as four independent control lines. I don't know if either of these techniques is what you really want, but maybe they'll give you some ideas.
My AC power strip is from Digital Loggers Inc. I found it at a surplus store for a lot less than new boxes. It supports eight controllable AC outlets from a Web page that's hosted inside the outlet strip itself. Connect it to your remote LAN with a little well-documented, one-time network magic and you're good to go. You can assign mnemonic names to each outlet, subdivide them into "user" and "administrator" sets, monitor access via a "heartbeat" on the Internet for restart sequencing, etc. Quite nice but not exactly what you want as you would have to plug in wall warts or external relays and you would have to activate the four lines manually, one at a time. To change antennas you would probably have to turn one off and another on which is kind of messy. My DC relay board is from Velleman Projects. It has a local interface program (Windows) that I access via a remote desktop app. It has eight SPDT relays but only exposes the common and normally open contacts via a terminal strip. I've considered tacking wires onto the normally closed contacts and adding a second terminal strip to expose them, but so far haven't had to do that. They probably have other models with different I/O capabilities. Although this device, like the power strip, provides eight independent, binary lines, its local interface program is written in Basic and source code is available. I wanted to re-program it with mnemonic names instead of just numbers 1-8 but when I saw the Gothic environment into which Basic has devolved, I gave up. If you're handier with Basic, you could use the supplied source code as education and write your own program that turns on one and no more than one line at a time. There are other vendors of similar devices. I believe there are also some solutions involving remote serial ports but I have no experience with them. Good luck & 73, /Rick N6XI -- Rick Tavan Truckee, CA On Tue, Mar 6, 2018 at 5:30 PM, Dennis Ashworth <[email protected]> wrote: > > Question #2 remains. How do I remotely switch between 4 positions on an RX > antenna switch (e.g. K9AY switch box) via some kind of Windows based UI. > Ideas? > ______________________________________________________________ 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]
