Other Listening Device for Security COFDM Wireless Video Transmitter
DS-HDT20W is a new COFDM digital transmitter receiver with Frequency-division duplexing (FDD) technology, designed with dual-mode RF transceiver system which operate at different carrier frequencies ideal for long range communication in network solution. The FDD technique uses different frequency bands for video radio sending and receiving with no interference.
DS-HDT20W transceiver is implement of transparent IP Ethernet interface that able balance and stable high-speed data rate with 30Mbit/s each for uplink and downlink. It’s ideal for broadcasting, public security system, emergency system, Police, military etc. required for long distance wireless private network links.
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 | HDM-I/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/HDM-I/ASI |
Working voltage | AC220V/DC12V <1A |
working temperature | -20℃~+50℃ |
Dimension | 480*260*45(1U chassis) |
Weight | 1.5kg |