| |
HP2DFA > TECH 06.10.26 16:33l 31 Lines 1342 Bytes #0 (0) @ WW
BID : 3552_HP2DFA
Read: OE5RCO GAST
Subj: FREEDV RADE: AI MACHINE LEARNING DIGITAL VOICE FOR HF
Path: DB0FFL<OE2XZR<OK1TOR<OK0NAG<DB0RKB<DK0WUE<HB9ON<HB9ON<PI8ZTM<VE3CGR<
VE2PKT<PY2BIL<HP2DFA
Sent: 261006/1343Z 3552@HP2DFA.#COL.PAN.CEAM BPQ6.0.24
FREEDV RADE: AI & MACHINE LEARNING DIGITAL VOICE FOR HF
TECHNICAL AND DIGITAL VOICE BULLETIN (WIA / FREEDV)
RADIO AUTOENCODER (RADE) HF OVER-THE-AIR TESTING
VALID: 06-OCT-2026 ONWARDS
ISSUED VIA BPQ32 NODE HP2DFA-5
1. OVERVIEW AND TECHNICAL BREAKTHROUGH:
- DEVELOPER: FREEDV PROJECT / DAVID ROWE (VK5DGR) & JEAN-MARC VALIN.
- CONCEPT : COMBINES MACHINE LEARNING (AI) WITH CLASSICAL DSP TO TRANSMIT
SPEECH OVER DIFFICULT HF CHANNELS AT SNRS AS LOW AS -2 DB.
- RADE V1 : 8 KHZ AUDIO BANDWIDTH IN 1500 HZ RF BANDWIDTH, 4 DB PAPR.
WORKS VIA STANDARD SSB TRANSCEIVER AND FREEDV-GUI (PC / RASPBERRY PI 4 ).
2. RADE V2 DEVELOPMENT & OVER-THE-AIR TESTING:
- IMPROVEMENTS: ~3 DB PERFORMANCE GAIN OVER V1; REMOVES PILOT SYMBOLS; USES
AI FOR FRAME SYNCHRONIZATION AND FINE TIMING.
- TESTING MILESTONE: O.T.A. TEST CAMPAIGN ANNOUNCED (SEP-24-2026) USING
FREEDV-GUI 3.0 BETA FOR REAL-TIME PUSH-TO-TALK (PTT) TESTING.
3. OPEN SOURCE & SUSTAINABILITY:
- LICENSING: FREEDV GUI UNDER GNU LGPL 2.1; RADE UNDER 2-CLAUSE BSD.
- SPONSORSHIP: SUPPORTED BY ARDC GRANT VIA SOFTWARE FREEDOM CONSERVANCY.
- TEAM : INTERNATIONAL LEADERSHIP INCL. VK5DGR, K6AQ, VK3TPM (USING
AGENTIC AI FOR PYTHON-TO-C CONVERSION), K5WH, K0PFX, AND G8SEZ.
INFO & DOWNLOADS: WWW.FREEDV.ORG
MAIL: HP2DFA@GMAIL.COM / HP2DFA-5@BPQ32
73 DE HP2DFA-5 / BPQ32 NODE PANAMA
Lese vorherige Mail | Lese naechste Mail
| |
