This is a first prototype for a QRP automatic antenna tuner. The final revision should provide
- Small form factor. The chassis is already set: It should fit nicely into a 10 x 10 x 3cm Fischer chassis.
- Tune a random wire of 10m-ish length + 1:9 UnUn on all Bands from 80m to 10m.
- Battery powered. The chassis should contain a rechargeable battery including its charging circuit.
- Using bi-stable relays the tuner should only consume power during the actual tuning. This increases the battery live extensively.
The first prototype lacks the battery and bistable relays. Hence, it is just a platform to develop and optimize the firmware.
(c) 2020, Hannes Matuschek, DM3MAT, dm3mat (at) darc (dot) de
The firmware and hardware are published under Creative Commons License SA-BY 4.0. See LICENSE file for details.