Transcription of D-Star ノード局の立ち上げ方法 （技術編）
1 1 D-Star JR1 OFP 2016 4 ( ) 2 (1) RTTY (2) PSK31 (3) JT65 (4) D-Star (5) C4FM D-Star C4FM 144 MHz 430 MHz 1200 MHz D-Star C4FM FSK (GMSK) 6kHz 4 FSK 16kHz AMBE2020 +FEC= ( 48bit/20ms) AMBE+2(Half-Rate) +FEC= AMBE+2(Full-Rate) +FEC= ( Half: 49bit/20ms , Full: 88bit/20ms ) ( ) ( ) ( ) ( ) FSK: Frequency Shift Keying, FEC: Forward Error Correction ) 3 (1)FSK ( D-Star ) 1 ( 208 S) 1bit 0 1 0 1 208 S) f0 f0 f1 f1 (2) 4 FSK (C4FM) 00/01/10/11 ( 208 S) 2bit f0 f1 f11 f10 f00 f01 FSK: Frequency Shift Keying ) 4 (1) FSK (Frequency Shift Keying) (2) ASK (Amplitude Shift Keying) (3) PSK (Phase Shift Keying) 5 D-Star DVS AMBE 6 --- PCM (Pulse Code Modulation) PCM 1 8000 125 S ) 8 --- 8 x 8000 / = 64000 / (64 Kbps) 7 D-Star PTT / AMBE 20ms 8 D-Star XRF085 ( ) FM ( ) ID-51 ( ) TM833 ircDDB Gateway Dstar Repeater (PC Raspberry Pi) 4800bps FSK (GMSK) ircDDBG ateway (1)
2 Reflector (2) (IP) Reflector (3) IP TX (4) IP RX Dstar Repeater (1) (2) (TX) (3) (RX) (4) FM PTT A B C D XRF076 A B C D IP 9 D-Star 1. PC USB-RS232C 9600bps FM 2,000 PC FM ) 2. V7 3 V7 9600bps FM 19,500 FM ) 3. DVMEGA DVMEGA 3 20,000 4. BlueDV DVMEGA Bluetooth 19,000 10 Windows7 Windows10 PC irrcDDBgateway + D-Star Repeater MIC SP GND GND OUT PTT IN 9600bps 2,000 PC USB-RS232C ----------------- 1000 ------------------------------ 1000 LAN USB-RS232C USB 11 V7 3 5V 1A LAN USB 9600bps V7 19,500 3+ +8GB SD = 7,500 V7 + ----- 11,500 USB ----- 500 12 DVMEGA 20,000 DVMEGA 12,500 7,500 ) DVMEGA XRF085 ID31/51 DVMEGA LAN XRF085 ID31/51 D-Star WiFi D-Star LAN DVMEGA DVMEGA+ DVMEGA+ 13 BlueDV 19,000 (DVMEGA 12,500 + Bluetooth IF 6,500 ) XRF085 ID31/51 BlueDV Android (BlueDV ) (Bluetooth )
3 BlueDV for Windows (PC ) XRF085 ID31/51 BlueDV Windows PC (BlueDV for Windows ) D-Star Bluetooth D-Star USB LAN BlueDV DVMEGA+Bluetooth IF 14 BlueDV Bluetooth BlueStack 1234 BlueDV BlueDV SETUP Call sign, DSTAR XRF085
