Product guide

61
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W ireless Transmission
Radio Contact
1394/ TX, 1394/RX
Video Transmitter and Receiver
Radio Contact
2240/TX, 2440/RX
Video Transmitter and Receiver
Radio Contact
4
5
8
/T
X
, 458/RX
Telemetry Transmitter and
Receiver
n 4 Video Channels
n 4 Dual audio channels
n TX. Power: 10mW
n RX: Sensitivity: -90dBm
n Operating Voltage: 12V Reg
n Current: 130mA TX, 300mA RX
n Frequency Range: 2.4 - 2.8GHz
n Protocols 20mA Current Loop, RS232, RS485, TTL
n 12 Channels @ 458MHz or 32 @ 433MHz
n Supports Data sheets up to 4800 baud
n Squelch indicator
n Sleep Mode
V
idecon
15-2400AK2-2
Wireless Tramsmitter and Receiver Kit
n 4 Channels Wireless TX & RX kit
n Range 50m (line of sight)
n Operating frequencies 2413, 2431, 2451, 2470
n No. of channels 4 (Selected by switch)
n Antenna impedance 50 Ohms (typical)
n Propogation Omni directional
n Output power 10mw
n Audio input 2V PP composite 75 Ohms
n Power requirements 9-12VDC @ 180ma
n Dimensions 60x52x19.2mm
n Single Channel CCTV video transmission
n Range: 1000m standard version,
5000m long-range version
n 500mW providing better performance and range
n Frequency 1394 MHz
n Operating Voltage 12V D.C. Stabilised
n Channel Bandwidth 10 MHz Max
n Video Input 1 Vp-p / 75 Ohms
n Supplied with mounting bracket
n Outdoor weatherproof boxes to IP65 available
Wireless Transmission of Video Signals
T
here are a number of choices to transmit video signals
through free space thus avoiding the need to run cables from
camera to monitor
. The most popular options are outlined
below:-
Shor
t Path Radio Links.
- Uses 1.394 and 2.4 GHz License Exempt Radio Bands.
- 2.4GHz band has 4 channels available, 1.394GHz has
single band.
- Typical Range 50-100m in free space, much reduced
through obstacles.
- Range can be extended with suitable antennas but at
increased cost.
- Note that because the antennas are omni-directional
then it is relatively simple to eavesdrop other peoples
video pictures. Also it is fairly straight forward to jam
the signals.
- Interference may be a problem, either from other
equipment that also uses the 2.4GHz band such as
s
ome c
or
dle
s
s t
elephones and wireless networking
equipmen
t
.
- However this equipment is ideal for rapid deployment
systems and for temporary covert surveillance.
Shor
t-medium Range Microwave Links
-
Clear Line-of-Sight required between transmitter and
receiver.
- Reasonable immunity to fog and snow.
-
R
ange up t
o 7
50m with s
tandard antenna.
-
C
an be extended to up to 3Km with high-gain antennae.
- Video-Only links for static cameras.
- Video + Reverse Data links available for telemetry
control of functional cameras.
- Nominal license fee payable
Note that clear line of sight is required between the
transmitting and receiving antenna. It is advisable to mount
the an
t
ennae as high as po
s
sible to minimise signal
at
tenuation from obstacles on the ground. Pay attention to
trees that may grow to become obstacles in the future.
B
e
f
or
e c
ommit
ting t
o the us
e of a wireless video link, it is
strongly recommended that an on-site test is carried out with
the proposed transmission equipment to ensure satisfactory
results.