Are you a KX3 owner? Ever wished you could squeeze band info out of your KX3 like you can on the K3? Control big amplifiers, automatic antenna tuners, band switches?
Well you can! I designed a KX3 Band decoder package. It sniffs your KX3 serial PC connection for band information and generates the band signals found on the 15 pin K3 ACC connector. It uses the same band signal drivers and coding as the K3 and shows up on the same exact pins! This allows you to connect any of your ham equipment that you can use with a K3 band selection data to the KX3!
The KX3 band decoder fits inside of a 3″ by 6″ by 1″ box. It has two PC (3mm stereo) connectors so you can plug into your KX3 and your PC (you don’t need the PC if you have KX3 in AI (auto info) mode). There is a 15 pin compact female sub D connector, just like on the back of the K3. You can power this device with anything from 8 volts to 19 volts (safe for same battery/power use as the KX3)
The KX3 band decoder uses a tiny postage stamp size Arduino and the same exact driver chips as is used inside the K3.
No configuration required. Plug it all in and instant band decoder.
I originally built this up on a wire bread board and used it on my Marshal Islands trip to drive my automatic band pass filter. When I got home I decided I wanted to have a more robust version so I did a ‘board’ layout and improved the power supply circuit. My miniumum board order had to be 10 boards. I’ve built most of them up. I don’t drill out the tiny front panel as I do not have equipment for the D sub so if you want one you will need to do the front panel yourself.
A few have been sold but I still have a number available for sale to those interested. Pricing is $75 which inludes US postage to US locations. Orders placed between 8/4/2015 and 10/5/2015 will be shipped on 10/6/2015.
20160701Sold out! Now taking a list. Next buy will be in the fall. I need at least 9 on the list to do the group purchase. If you are interested please send your info via this post and I will put you on the list.