Active Member
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[China]
Address: F13, Block 2, Baolong industrial park, Baohe Road, Longgang district, Shenzhen, China
Contact name:Li
Shenzhen dingshen Industrial Co., Ltd |
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Application:
COFDM Technique Advantages
Warranty
DS-HDT20W is a new arrival digital wireless video audio transmitter which adopts the latest technologies of COFDM modulation and H.264 image compression that enables good NLOS (Non line-of -sight) transmission with DVD quality video. The transmitter is compact size with strong power amplifier for longer-range transmission. Good heat resistant with two cooling fans. Be safety with AES128 bits. It works well in fast-moving transmission.
Transmitter parameter:
| Modulate | COFDM |
| Working voltage | DC12V |
| Working current | ≤6A@DC12V |
| RF bandwidth | 2/4/6/8MHz (adjustable) |
| Frequency | 300-900Mhz or other frequency customized |
| Output power | 10-20W adjustable |
| Video input | HDMI/SDI; CVBS |
| Data input (option) | RS232/TTL, up to 115200bps |
| Video resolution | 1920*1080P/I@60fps; 1280*720P/I@60fps |
| Video coding | MPEG-2/H.264/H265 |
| Video rate | 512Kbps-16Mbps (adjustable) |
| Encryption | AES 128 bits |
| AV input | 1Vp-p, 75Ω. Left and right channel |
| Video system | PAL/NTSC |
| Power flatness | Full band ≤1.5dB |
| CNR | ≥25dBc@48dBm |
| Second harmonic | ≥60dBc |
| CBER | <2.0E-4 |
| VBER | <1.0E-7 |
| MER | 32dB |
| Carrier | 2k 4k 8k |
| Constellation | QPSK,16QAM,64QAM (option) |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 (option) |
| Guard Interval | 1/32, 1/16, 1/8, 1/4 (option) |
| Working Temperature | -25°C~55°C |
| Dimension | 220*140*66mm |
| Weight | 2.5kg |
Receiver parameter:
| Frequency | 300-900MHz or other frequency customized |
| Bandwidth | 2/3/4/5/6/7/8MHz (option) |
| RF input level | -94dBm~0dBm(8M)/-98dBm~0dBm(2M) |
| RF input impedance | 50Ω |
| RF input type | N type |
| Modulation | COFDM |
| Constellation | QPSK,16QAM,64QAM(adjustable) |
| FEC | 1/2,2/3,3/4,5/6,7/8(adjustable) |
| Carrier | 2k |
| Guard Interval | 1/32,1/16,1/8,1/4(adjustable) |
| Video coding | MPEG-2/H.265 |
| Screen | 4:3 16:9 |
| Video resolution | 1080P@4MHz |
| Audio output | Stereo unbalance 300/ 200mv |
| AV output | 2 Audio output + 2 Video output. SDI/HDMI/ASI |
| Working voltage | AC220V/DC12V <1A |
| working temperature | -20℃~+50℃ |
| Dimension | 480*260*45(1U chassis) |
Features of surveillance equipment long distance wireless video transmitter
1) Full HD resolution 1080P/1080I@30fps;
2) Support 15-25W RF power;
3) COFDM modulation,H.264 video compression mode;
4) Built in with HDMI/HD-SDI port (optional);
5) Support L/R stereo audio in/out;
6) Small in size and lightweight;
