新しい HF Digital Transceiver、DDX

　Groups.io に新しい HF Digital Transceiver、DDX の記事が投稿されました。



以下は投稿された記事からの引用です。
DDX Specifications:
- Frequency: All HF bands - manually switched filters
- Modes: Digital FSK modes (FT8, FT4, WSPR and others)
- Power Output: ~5W (consistent across all bands, including 10m)
- Power Consumption: ~0.82 W (≈60 mA @ 13.8 V) for RX, maximum of 1.3 A for TX
- PCB Size: 65×65mm
- Enclosure: ~85×80×45mm
- Weight: < 300 grams (including heatsink and enclosure)

Key Features:
- Single USB connection for Audio + CAT control
- Rugged PA design tolerates common real-world antenna mismatches (5.0:1 VSWR, shorted coax - all fine)
The exciting days of FETs blowing in your face are gone!
- Built-in TCXOs for stable operation without routine calibration
- Reliable T/R switching based on a DPDT relay
- TX chain designed for clean Digital operation with the correct output filtering
- Hybrid bit-perfect modems with transparent VirtualDigi-AFP-FSK fallback
- Tested with WSJT-X Improved
- Proven DX performance with simple wire antennas
- Native support in Hamlib and WSJT-X Improved (open-source code, upstreaming in progress)

SMD は JLCPCB で実装してもらえるようです。