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What's New
Bidirectional D-STAR reflector voice bridging — Connect your TH-D75 to REF reflectors over the internet using the radio's built-in Reflector Terminal Mode (Menu 650) via Bluetooth.
Features
- Full TX/RX voice through DPlus (REF) reflectors — confirmed working in live QSOs
- Radio handles AMBE codec — full hardware-quality D-STAR audio
- Direct Bluetooth RFCOMM connection — no hotspot hardware needed
- DPlus trust server authentication for registered callsign support
- Reflector directory with search and favorites
- Heard stations list with timestamps
- Real-time connection logging for diagnostics
Bluetooth Reliability
- Clean single-connection handling (no double "connection completed")
- Automatic retry on exclusive access errors
- Reconnect with exponential backoff on Bluetooth drops
Documentation
- Comprehensive user manual updated with MMDVM terminal mode setup, usage, and troubleshooting
Setup
- On the TH-D75: Menu 650 → Reflector TERM Mode → ON
- Pair the radio with your Mac via Bluetooth
- In TH-Programmer: Reflector tab → MMDVM Terminal mode → Connect MMDVM
- Enter your callsign, select a reflector (e.g., REF001 C), and click Connect
- Key the radio to transmit — your voice goes to the reflector
Known Limitations
- XRF/DCS reflector support is implemented but untested (reflector availability varies)
- Echo test (URCALL=E) requires a local echo service (not yet implemented — use CQCQCQ calls to test)
- Binary is unsigned — right-click → Open on first launch to bypass Gatekeeper
- arm64 only (Apple Silicon) — Intel Macs can run via Rosetta 2
Requirements
- macOS 14 (Sonoma) or later
- Kenwood TH-D75A/E with firmware 1.03+
- Bluetooth pairing with Mac
- Valid amateur radio callsign registered for D-STAR