2W Cofdm Mobile Video Transmitter with Duplex-Audio
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Product Description
ABS/AES encryption
Duplex-audio communication
Working frequency adjustable within specified range
Multiple bandwidth output
Double lithium batteries with more than 4 hours' lastimg time continuously
One-channel video and two-channel audio (left/right channel) simultaneously input
Left/right channel audio and unbalanced stereo input
Transmitter power output adjustable
GFSK digital audio modulation, narrow receiving bandwidth and high sensitivity
Good voice quality with internal en/decryption
Audio frequency adjustable with built-in 64 channels and 24 addresses
Fully-enclosed waterproof case, dustproof and good impact resistance
| Power Supply | ||||||
| Working voltage V | DC12V~DC16V | |||||
| Working current A | ≤2.5A@DC12.5V | |||||
| Video Transmission | ||||||
| Frequency output range | 300MHz~450MHz,560~760MHz or user customzied | |||||
| RF bandwidth MHz | 1.5/2/4/6/7/8MHz adjustable | |||||
| 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 @ 1.5/2MHz 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 op | |||||
| 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 | 2.1Vpp (open circuit output) | |||||
| 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 (without frame carrier and battery) | |||||
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