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Lyra — Hermes Lite 2 / 2+ and BrickSDR2 SDR Transceiver

A native C++23 / Qt 6 SDR transceiver for the Hermes Lite 2 / 2+ (Protocol 1) and BrickSDR2 (Protocol 2) — full receive and transmit, a GPU-accelerated panadapter, and a studio-grade TX audio rack. No Python, no GIL, nothing in the signal path but native code.

_{Lyra running live — panadapter, waterfall, tuning cluster, CW console and meters. See the full tour →}

_{Shot on a 2560 × 1440 display with every panel open — you'll want a big screen to reproduce it. Lyra needs 1600 × 900 for the panels you operate with, and 1920 × 1080 to have them all open at once. Full PC requirements →}

⬇️ Download the latest installer →

Grab Lyra-Setup-X.Y.Z.exe, run it, click ▶ Start, pick your radio. The installer adds the Windows Firewall rules so Lyra connects without administrator rights.

New here? Start with one of these: 🚀 Quick Start · 🎙️ First Voice Setup · 💻 PC Requirements · 📻 Supported Radios

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What Lyra is

A modern, native replacement for a classic HPSDR console — built from the ground up in C++23 with a GPU-rendered spectrum and a full transmit chain that would normally mean wiring an outboard studio rack in front of the radio. Everything runs on the desktop, on the GPU where it helps, and over a plain wired Ethernet link to the radio.

Radio support at a glance

Radio	Status
Hermes Lite 2	✅ Supported (Protocol 1)
Hermes Lite 2+ (AK4951)	✅ Supported (Protocol 1)
BrickSDR2	✅ Supported (Protocol 2)
ANAN family (HPSDR Protocol 2)	🗺️ Planned (P2 wire is live on Brick; ANAN models still need bring-up)
Other HPSDR Protocol-1 boards	🗺️ Planned (needs a tester with the hardware)

Full detail on the Supported Radios page.

Operating system

OS	Status
Windows 10 (64-bit, v1809+) / Windows 11	✅ Supported today
Linux	🗺️ On the roadmap — a future version
macOS	🗺️ On the roadmap — a future version

At a glance — what works now

✅ Full receive (all modes, the complete WDSP noise/filter toolkit, RX EQ, captured-noise reduction, CTUN, RIT) · ✅ Full transmit — SSB / AM / SAM / DSB / FM / CW plus digital over TCI & VAC · ✅ a native TX audio rack (8-band EQ, multiband Combinator, plate reverb, speech processing, voice keyer, VOX, TX profiles) · ✅ CW send + on-screen CW decode · ✅ DX spots, frequency calibration, tuner memory, CAT / TCI / VAC, a session recorder, backup & restore, and a dockable Vulkan UI.

See the full checklist on Feature Status.

A studio rack, inside the radio

Lyra ships the kind of transmit audio chain you'd normally wire up as outboard gear — all native, all in front of the WDSP transmitter:

8-band parametric EQ	5-band Combinator	Speech processing
Draggable response curve over a live analyzer	Multiband compression, X-Air-style	Noise gate, auto-AGC, de-esser, DX cut-through

_{Screens from the feature tour. Plus plate reverb, voice keyer, VOX, and save/recall TX profiles — see Feature Status.}

On the roadmap

🗺️ RX2 dual receiver · 🗺️ PureSignal adaptive predistortion · 🗺️ ANAN family as first-class Protocol 2 radios · 🗺️ Linux, then macOS · plus a second virtual-audio channel (VAC2).

Details, ordering, and status on the Roadmap.

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Documentation

• 🚀 Quick Start — box on the desk to first signal in five minutes.
• 🎙️ First Voice Setup — your first phone contact (SSB / AM / FM).
• 💻 PC Requirements — CPU / GPU / video spec, in detail.
• 📖 User Guide — the full operator's manual (also built into the app: Help → User Guide).
• 🔗 SDRLogger+ Combo — the two-way link with the companion logger.
• ❓ FAQ & Troubleshooting

Companion app — SDRLogger+

SDRLogger+ is Lyra's sister application — a modern contest/DX logger by the same developer. Connect it to Lyra over TCI and flip on the Combo link and the two work as one: copy a call once in Lyra's CW console and it lands in the log with a callbook lookup, the operator's name comes back to your {NAME} macro, RST-Rcvd auto-fills from Lyra's calibrated S-meter, and a {LOG} macro logs the QSO as you send 73. → Get SDRLogger+

Links

• Releases — installers + release notes
• Report a bug / request a feature
• README — features + build from source
• License: GPL-3.0-or-later (WDSP-compatible) — see NOTICE

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Lyra is built by Rick Langford (N8SDR) for the Hermes Lite 2 community. 73.