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500AHD - AHD wireless transmission kit, 500 meters
AV-LiNK AV-500 AHD-MINI
is a wireless transmission kit, designed to transmit high-resolution
video in AHD standard. Advanced modulation provide real time video
transmission with resolution up to 1.3M (AHD-M), without delay and loss of quality. Kit does support also transmission 960H resolution of CVBS (PAL).
AHD kit use one of eight radio channels selectable by dip-switch. High radio selectivity of the receiver and the generation of the carrier by PLL ensures high stability of frequency and allows to use multiple AHD kits in same time.
Build in active antenna with LNA provide transmission on distance up to 500 meters in open area.
Usually AHD cameras have the ability to change between standard PAL and AHD. Transmitter automatically detects type of input signal (AHD / Analog) and automatically switches output signal of the receiver to the same standard. This solution facilitates commissioning installation and maintenance system using the standard service monitors.
Using a wireless transmission sets decrease cost of investment in situations where laying cables is dificult or in existing installation which need's extension.
The set is equipped with adjustable wall bracket and built-in directional antennas. The hermetically hosing and sealing cables can be installed inside and outside the buildings.
AHD kit use one of eight radio channels selectable by dip-switch. High radio selectivity of the receiver and the generation of the carrier by PLL ensures high stability of frequency and allows to use multiple AHD kits in same time.
Build in active antenna with LNA provide transmission on distance up to 500 meters in open area.
Usually AHD cameras have the ability to change between standard PAL and AHD. Transmitter automatically detects type of input signal (AHD / Analog) and automatically switches output signal of the receiver to the same standard. This solution facilitates commissioning installation and maintenance system using the standard service monitors.
Using a wireless transmission sets decrease cost of investment in situations where laying cables is dificult or in existing installation which need's extension.
The set is equipped with adjustable wall bracket and built-in directional antennas. The hermetically hosing and sealing cables can be installed inside and outside the buildings.
Application with analog PAL camera (960H)
Application with AHD camera
To connect Video signal can be used
coaxial cable or twisted pair (UTP) because trasmitter and receiver
have build in HD video balun. This allows to use any method for wiring
on of the transmitter and receiver side.
Internal video balun are compatible external video baluns, model
TR-1F-HD or other compatible devices designed by Ewimar company, such as
a series of LHD or HDT-1F. You can apply the same wiring on the
transmitter and receiver side or freely mixed.
Wiring methods
The transmitter and receiver are equipped with additional test BNC connector, which you can connect cameras or monitors, to help you diagnose any faults or assist in the configuration
Technical specification:
No
ParameterValue 1 Video channels
Coaxial cable: 1 x 75 Ohm
UTP twisted pair: 1 x 100 Ohm
2 Audio channels
1 x 2Vp-p (only for PAL 960h)
3 Radio channels
Channel 1 : 5855MHz
Channel 2 : 5820MHz
Channel 3 : 5780MHz
Channel 4 : 5745MHz
Channel 5 : 5715MHz
Channel 6 : 5680MHz
Channel 7 : 5645MHz
Channel 8 : 5610MHz
4 Antenna Directional, active 5 Sensitivity -80dB 6 Power of output signal 20dBm 7 Signal / Noise ratio
40dB 8 Wave generation
PLL synthesis
9 Temperature of work
-20°C ~ 40°C 10 Hermetic class
IP65 11 A/V modulation
FM 12 Audio band
50Hz~15kHz (only PAL 960H)
13 Power supply
9~24V AC/VDC 14 Current Transmitter: 240mA @ 12VDC
Receiver: 130mA @ 12VDC 15 Bracket
Wall mount, adjustable 16 Surge protection
600W - Power, Video and Audio