Xiegu X6100
Overview
The Xiegu X6100 is a portable HF + 6 m all-mode SDR transceiver — the portable HF rig in this lineup. It carries its own battery, automatic L-network tuner, speaker, and 4" colour touchscreen with panadapter/waterfall, so you can hand someone the box and a length of wire and they can make HF contacts. It serves both as the POTA/SOTA backpack radio and, fronted by the matching Xiegu XPA125B 100 W amplifier, as the shack HF rig. This deep dive covers the hardware, the band/mode and DSP envelope, the firmware/CAT "programming" workflow, the config-artifact backup discipline, and portable + shack field use. Migrated from the Scanners project as part of the Scanners/Radios restructure Stage 2 Phase 2 (2026-06-16).
Context
The architecture is SDR — a direct-conversion / low-IF front end feeding an FPGA + ARM SoC running embedded Linux, with a Qt UI on the same SoC. Two operational consequences: the user interface is software and can be replaced (the community Hello X6100 and Reform forks), and the SDR gives a panadapter/waterfall for free. It wins on cost (roughly half an IC-705), integration, and display; it loses on front-end dynamic range, firmware polish, and support longevity. One documented quirk: front-end overload near strong broadcast signals — firmware 1.1.7+ exposes the RF attenuator that mitigates it; this project's guidance assumes 1.1.7 or later. The ~3.8 GB firmware-history archive (gitignored) is preserved under `projects/xiegu-x6100/`.
