Re: [Elecraft_K3] Splitting ACC port on K3 to 4 devices
Randy Farmer W8FN
I have a similar arrangement that I use as an ACC splitter to distribute the appropriate signals to my microHAM MK2R+ SO2R controller, my KPA500 and my XV144. It's been in service for a couple of years and works quite well.toggle quoted messageShow quoted text
I did exactly what you propose. I used a 4-position VGA switch from cablewholesale.com (P/N 40H1-03604 -- currently $19.01) modified as you suggest. I removed the switch and all internal wiring and wired only the necessary lines to each of the jacks from the I/O connector. If you are interested, I can send a pdf file of my drawing for the modified box and the interconnect cable to the K3.
You're right to be concerned about RFI on these lines. I have a bunch of antennas crammed into a very small lot and therefore lots of common mode RF running around. I had previously been using a bunch of Y connectors and experienced some weird problems, such as the K3 turning off its power when I transmitted on 30 meters. By putting all the wiring in a metal box and bonding the hoods of the DE15HD connectors to the box chassis and the return lines in the cable I was able to operate using the KPA500 on all bands with no RF problems. That's not to say that your installation might not require some ferrites; you just have to experiment.
Hope this helps.
On 12/23/2016 3:49 PM, ny4i@... [Elecraft_K3] wrote: