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Wireless Emergency Products |
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Wireless Emergency Products |
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Ambulant Backpack Transmitter System
M1000-SWB
An ambulant backpack system integrates an antenna, a power amplifier, a digital modulation, a digital compression of video & audio, a battery group, etc.. It can provide a wireless transmission of one video channel, one audio channel and one optional asynchronous RS-232 data channel. The system is convenient for an ambulant video & audio shooting and is available in individual-to-vehicle or individual-to-centre application. Its typical transmission distance in the city is 1.5-5 kilometers in NLOS(Non Light of Sight) condition.
The ambulant backpack system is a wireless transmitter, which must work with a receiver.
Features
- Optional working frequency :
150~900MHz, 1.0G~1.7GHz or 2.3G~2.7GHz;
- Optional frequency bandwidth :1.25/2.5/3.5/8MHz;
- Optional video compressing format : MPGE4 or MPEG2;
- Adjustable output power from 200mW to 5W;
- 8 channels for changing the working frequency easily for anti-jamming;
- 128 bit AES digital encryption technology process, high security;
- Supporting stable video transmission with high quality in the high speed mobile situation;
- Supporting NLOS(Non Light of Sight) transmission;
- Natural non-fan cooling design for 0dB noise;
- +12VDC power input;
- Optional buckled lithium battery for a long straight working time of up to 10 hours.
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Technical specification
| High Frequency Part |
Baseband Part |
> Working frequency:
150~900MHz,1000~1700MHz,2300~2700MHz
> Transmitter output power: 200mW to 5W
> Channel bandwidth: 1.25/2.5/3.5/8MHz
> Transmitting frequency error tolerance: ≤±1 × 10-5
> Output power error: ≤±1dB
> Antenna connector: N type@50Ω |
> OFDM subcarrier amount: 2K / 4K
> Protection time spacing: 1/32,1/16,1/8,1/4
> Modulation type: QPSK / 16QAM / 64QAM
> Interlacing time: 0ms / 100ms / 200ms |
| System Parameters |
Working Environment |
> Transmitting delay: 5ms / 100ms / 250ms
> Bit rate: 1~5.3Mbit/s
> Transmission distance:
> 1.5-5 Kilometers at 1W (in NLOS environment)
Mobile rate: Receiving stably in 200 Km/h |
> Power resource: DC(11V~17V)
> Power consumption: 30W(output power=1W)
> Working temperature: -25°C~60°C
> Working humidity: 80% |
| Video/Audio/RS-232 Parameters |
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> Video format: PAL / NTSC
> Video resolving power: 625 or 576 lines, 720 pixels per line
> Compress format: MPEG-2 / MPEG-4
> Audio input: Double tracks 12dBm
> Audio coding: 728kbps stereo
> Sampling frequency: 32kHz
> Video/Audio connecto: RCA @ 75Ω
> RS-232:150bps~38.4Kbps auto-adaptive, asynchronous, optional
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