Thomas Does Radio or Something

Being in want of some more surplus-sourced RF components, I picked up a Buker 2H Lockswitch module. It appears to be part of an NMR multi-band interface solution: AVANCE II with DRU TwoBay . Specifically, I have the 750-900 MHz version. And thanks to the university for retaining and publishing these esoteric pieces of documentation. Front overview of the 1U chassis with SMA, N, and isolated SMA interfaces, plus power indicator LED

I've been sitting on my to-be-modded UV-K5 for a while now in hopes of having low-cost access to more bands . In my diversion from this project, others have put together some good work, though at the low end of the range. The ludwich66 GitHub wiki tracking UV-K5 projects covers them on the Hardware_Mods_27Mhz page . The two sets of PDFs were uploaded back in July 2024. Yeah, I'm behind a bit. Let's dive into what's been implemented.