China Drones Accessories Long Range Wireless Video and Audio Transmission Modules, Find details about China Cofdm, Wireless Transmitter from Drones Accessories Long Range Wireless Video and Audio Transmission Modules
Power Supply | |||||
Working voltage V | DC12V~DC16V | ||||
Working current A | ≤2.8A@DC12.5V | ||||
Video Transmission | |||||
Frequency output range | 300MHz~450MHz,560~760MHz or user customized | ||||
RF bandwidth MHz | 2MHz (fixed) | ||||
Power output | 21~36dBm power output adjustable with 1dB step | ||||
C/N | ≥28dB@32dBm | ||||
SHG | >52dBc | ||||
Encryption | AES/ALLTECH Basic scrambling | ||||
Modulation | COFDM | ||||
Constellation | QPSK,16QAM,64QAM optional QPSK/16QAM/64QAM @ 6/7/8MHz | ||||
FEC | 1/2,2/3,3/4,5/6,7/8 optional | ||||
Carrier | 2K | ||||
GUI | 1/4, 1/8, 1/16, 1/32 optional | ||||
Video encoding | H.264 | ||||
Video input level | 1~1.2Vp-p@75Ω | ||||
Video input format | PAL/NTSC | ||||
Video resolution | 720x576(PAL) 720x480(NTSC) | ||||
Video white bar amplitude mV | 650~720mV | ||||
Video synchronous amplitude mV | 260~275mV | ||||
Video amplitude-frequency characteristic dB | 0~4.8MHz | -0.5~1.5 | |||
5.5MHz | -4.0~1.5 | ||||
Audio input | Left/right channel, stereo | ||||
RS232 control interface | Standard RS232 level, 9600, 8, N, 1 | ||||
RS232 data interface | Standard RS232 level, support 1200~115200 | ||||
Audio Receiving | |||||
Audio Rx frequency range | 470.5~479.950MHz, factory setting:479.950MHz | ||||
Audio Rx sensitivity | ≤-111dBm | ||||
Audio Tx modulation | GFSK | ||||
Frequency step | 150KHz | ||||
Audio decoding overall bitrate | 4800bps | ||||
Audio output | 2.1Vp (open circuit output) | ||||
GPS Receiving | |||||
Signal receiving | L1(1575.42MHz), C/A code | ||||
Communication protocol | NMEA0183 | ||||
Sensitivity | -165dBm | ||||
Antenna | Active antenna | ||||
Data baudrate | 4800bps | ||||
Data refresh rate | 1Hz | ||||
Environment | |||||
Protect standard | IP66, dustproof and rainproof | ||||
Working temperature | -25°C~55°C | ||||
Storage temperature | -40°C~70°C | ||||
Appearance | |||||
Dimension | 238mm×140mm×75mm | ||||
Weight | 2.5kg |