AVLink AV-2500-ECO User manual

AV-2500-ECO is radio transmission system designed to transmit analog Video (composite
CVBS) and two independent audio signals in external conditions The device uses one of seven
available radio channels (5470MHz ~ 5860MHz), set by switches Digital PLL generates high fre-
quency, providing excellent work stability and high resistance to radio interference from adjacent
frequencies
Device includes an airtight case with active directional antenna and required connectors This
solution allows to obtain optimal radio range because radio signal isn’t attenuated on cables be-
tween antenna and radio transmitter / receiver
System can be used on professional CCTV installations to transmit Audio and Video from
cameras, to presentation, Audio/Video solutions in home and hobby
Audio Video signal are transmit in real-time without compression and delays It’s important to
choose right place for installation and precisely align antennas
Place of installation
5 8GHz frequency provides high quality Video and protection from radio interferences, but it has
defects just like devices using microwave frequencies (for example satellite antenna)
1 Antennas in devices needs to be accurately aligned relative to each other
2 All solids, also the wood and leaves of trees attenuates microwaves
3 Antennas of sets need to be visible and the field of view needs to be clean at 3 meters from
center of antenna (6m diameter)
Sometimes is important to use high mast, trim trees or remove other barriers Devices are more
safety against radio signal attenuation, when are hanging higher off the ground
Land view from top Land diameter without hindrance should be at least 6m
5.8GHz Audio/Video signal transmission set.
Model
AV
-
2
5
00
-
ECO
RIGHT
WRON
G

Mounting on mast or jib.
Transmitter and receiver have special grip to mounting
on jibs or antenna masts at 43mm diameter
Horizontal adjustment - device rotation on the mast
pipe;Vertical adjustment - adjustable on handle
First, set transmitter in horizontal position and lightly
tighten screws (to allow for vertical adjustment) and
then strongly turn the whole
Horizontal and vertical antenna adjustment
Connecting cables
Disconnect power before connecting cables protect device from accidental short circuits and dam-
age Connecting can be executed before mounting device on mast or when it's mounted (Depend-
ing on technical possibilities)
The set has two types interfaces for Video signal:
1 For coaxial cable - low-loss screw clamps
2 For UTP twisted pair – with converter (UTP transformer)
WRON
G
RIGHT
Lay of the land Lay of the land

How to connect coaxial cable
Signal cable need to be connected to center ter-
minal block and cable shield clamp by metal
clamp
Audio L and Audio R clamps are designed to
connect lines from camera (in transmitter) and in
monitor or amplifier(in receiver)
It’s recommended to use cable shield, dedicated
to transmit Audio It's protect device from distor-
tion and hum collecting from energy network
POWER clamp is designed to power supply of device Connected direct voltage should be 12 V
Power input is protected from reverse polarity Power correctness is indicated by green LED
An example of typical application of model AV-2500-ECO
How to connect UTP twisted pair
Twisted pair need to connect with extreme
terminal blocks, metal clamp is used to pro-
tection cables from pulling additionally
On the other side UTP twisted pair is pos-
sible to use typical Video transformer (we
recommended good class) or active
transmitter/receiver
The set can be powered with available
cables of twisted pair, but you need re-
member about voltage drop Incoming
voltage can’t be lower that 9V

Device adjustment
Set doesn’t need special knowledge and expensive tools for installing The most important is proper
positioning of transmitter and receiver a according to recommendations of instructions and aligned
relative antennas to each other System in ECO version hasn’t radio measurement function and in-
staller can verify antennas setting only optically When the antenna isn't set exactly and the weath-
er conditions are unfavourable(snowstorm, fog, heavy rain) may appear deterioration of image
quality and will be necessary correcting antenna settings
PRO version has radio function of measurement system
You must set radio channel before you connect power supply Rotary
switch on the transmitter and receiver is used to this Adhere to the
following instructions
1 Radio channel must to be set the same in transmitter and receiver
2 When we are dealing with sets work in immediate vicinity or in close proximity to transmitter
and receiver, channels must be set every second one
3 Number of radio channel are the same like number on switch
4 Setting switch to position 0 is equivalent to selecting channel 1
Technical specification:
No.
Parameter
Value
Video channels
Coaxial cable:
1 x 75
Ω
UTP twisted pair: 1 x 100 Ω
Audio channels
2 x 2Vp
-
p
Radio channels
Channel 1: 5470MHz
Channel 2: 5760MHz
Channel 3: 5780MHz
Channel 4: 5800MHz
Channel 5: 5820MHz
Channel 6: 5840MHz
Channel 7: 5860MHz
Antenna
Directional, active
R
eceiver sensitivity
-
85dB
T
ransmitter po er
25mW, 14dBm
Deviations for
Video channel
(at 10kHz)
4MHz
F
requen
cy control
Synthesis
PLL
Work temperature
-
20°C ~ 40°C
Hermetic class IP65
A/
V
Modulation
FM
F
requency Range
for Video
5
0Hz ~ 5,5MHz
F
requency Range
for Audio
50Hz~20kHz
Po er
9~13,5VDC
Current dra
Transmitter: 300mA @ 12VDC
Receiver: 120mA @ 12VDC
Max diameter of mast
40mm
Surge protection
600W for power, Video and Audio
Radio devices producer to transmit Video, Au-
dio and data www.AV-LiNK.pl