MVL10-WR 2.4 GHz Wireless Video Link System ... - Supercircuits Inc.

MVL10-WR 2.4 GHz Wireless Video Link
System Setup and Usage Guide
The MVL10-WR is a reliable and exceptionally easy to install wireless communications link. It includes
these features:
• 700’ range (line of sight)
• 2.4 GHz range broadcast quality FM-synthesized performance the with 4 channels (selectable)
• Transmits video with audio
• Water-resistant enclosures
Distance (d) 250 ft 500 ft 700 ft
Radius (r) 5 ft 7 ft 9 ft
Minimum clearance (g) from
ground to Fresnel zone
Minimum height (r + g) of
Transmitter and Receiver modules
7 ft 7 ft 7 ft
12 ft 14 ft 16 ft
——
The right side of the transmitter module must face the right side of the receiver module,
with the cables at the bottom.
FRONT of transmitter module
BACK of receiver module
Transmitter
module
Receiver
module
Up to 700 ft
25 ft
drop
cable
Right side of
transmitter
module
Right side
of receiver
module
Direction to
transmitter
2. Mount the transmitter and receive modules on rigid surfaces using appropriate fasteners.
Step 2. Attach video/audio source and receiver equipment,
and setup transmission frequency.
Power
Adapters (2)
1. Connect the video (yellow) /audio (white) leads of the receiver module drop cable to your video/
audio receiving equipment (TV, DVR monitor, etc.). RCA - BNC adapters are provided, if needed.
Video
Audio
Power
RCA - BNC
adapters (4)
MVL10-WR components
Each transmitter/receiver pair can be configured to use 1 of 4 channels in the 2.4 GHz range, and both the
transmitter and receiver of a pair must be configured to use the same channel. Transmitters and receivers
are factory set to use channel 1. If you have multiple MVL10-WR transmitter/receiver pairs in the same
vicinity, configure each pair to operate on a different channel.
2. Connect the power (red) lead of the receiver module drop cable to the power adapter provided,
then plug the adapter into a standard 120 VAC outlet.
3. With your video/audio receiver equipment, check for video and audio signal interference. If this
MVL10-WR system is the only one in the vicinity AND you cannot detect any significant video or
audio signal interference with your receiver equipment, skip to step 4. Otherwise, continue with
the following sub-steps to determine the best transmission channel configuration for your system.
a. Remove the front cover from the receiver module by removing the four screws.
Step 1.
Mounting the Transmitter and receiver modules
1. Select locations for mounting the transmitter and receiver modules with the following
considerations:
——
The transmitter and receiver modules can be up to 700 feet apart.
——
For best signal transmission, ensure that the Fresnel zone between the transmitter
and receiver is free of obstructions. Use the table below to approximate the minimum
transmitter and receiver height from the radius (r) for the line of sight distance (d) and
ground clearance. See the following diagram.
Screws
Fresnel zone envelope
Transmitter
Line of sight distance (d)
Radius (r)
Receiver
Removing the cover from the receiver module allows access to the channel select switch.
The channel select switch has four positions, channel 1 (CH1), channel 2, channel 3, channel
4, left to right. In the following picture, the switch is in the channel 1 position (factory
setting).
Height ≥ r + g
Fresnel zone ground clearance (g)
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CH1 CH2 CH3 CH4
b. Pry off the channel switch cover using a small blade screwdriver.
CH4 CH3
CH2 CH1
b. While monitoring the video and audio output of your receiver, select each channel to
determine which channel is the most interference free. Set the switch to this position and
record the channel number.
Channel: ____________
4. Connect your video and audio source equipment (camera, microphone, etc.) to the transmitter
drop cable video (yellow) and audio (white) leads. RCA - BNC adapters are provided, if needed.
Video
Audio
Power
5. If the receiver module is setup to use channel 1 (factory setting), connect the power (red) lead of
the transmitter module drop cable to the power adapter provided, then plug the adapter into a
standard 120 VAC outlet. Otherwise, don’t power on the transmitter yet, and perform the following
sub-steps to set the transmission frequency to the receiver module setting.
a. Remove the front cover from the transmitter module by removing the four screws.
Removing the front cover allows access to the transmission channel select switches.
Transmission channels 1 through 4 (CH1 .. CH4) are selected by sliding to ON the switch
numbered for the channel (see the table below). Only one channel switch should be ON at
any time. In the following picture, only switch 1 (for channel 1) is ON (factory default).
Transmission
Channel
Switch positions
4 3 2 1
Channel 1 off off off ON
Channel 2 off off ON off
Channel 3 off ON off off
Channel 4 ON off off off
c. Set the channel select switch to ON for channel selected in the receiver module. Verify that
all other channel select switches are not ON (off).
d. Reinstall the transmitter channel switch cover by pressing it into place.
e. Connect the power (red) lead of the transmitter module drop cable to the power adapter
provided, then plug the adapter into a standard 120 VAC outlet. The MVL10-WR wireless link
should now be functional.
6. At the receiver module, check the quality of the video and audio received through the wireless link
from your video source. If the video and/or audio signals received are low quality, do the following
until an acceptable signal is provided from the receiver module:
a. Verify that all video, audio, and power connections in your system are secure.
Channel
switches
under inner
cover
b. Use appropriate monitoring equipment to verify that your video/audio source equipment is
functioning properly.
c. Recheck the orientation location of the transmitter and receiver modules to verify that the
right side of the transmitter module is directly facing the right side of the receiver module,
and no interfering structures exist in the Fresnel zone between them. Check for interfering
signals from other sources, and take appropriate action to mitigate them.
d. Change the transmission channel you are operating on. Refer to steps 3 and 5 above.
7. If the front covers of the transmitter and/or receiver module(s) were removed, reattach them.
Ensure that the cover seal is positioned properly (see picture below). Tighten the 4 cover screws
evenly, being careful to not over-tighten them.
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Cover seal
positioned
properly
Inside of cover
Troubleshooting
Problem
No video or audio
Interference in video
or audio
Possible Solutions
• Check power, video and audio cable connections.
• Verify that your video source and receiver equipment is functioning properly.
• Verify that the TX and RX module are powered on.
• Check the RF spectrum in the area for other devices that emit high radiation,
such as microwave ovens, 2.4 GHz wireless devices, power equipment, etc.
Specifications - TX module
Item
Transmitting frequencies
Transmit power
Modulation
Video input level
Audio input level
Antenna
Power requirements
Power adapter
Dimensions
Weight
Specification
2.400 GHz, 2.427 GHz, 2.454 GHz, or 2.481 GHz (selectable)
10 dBm (maximum)
Frequency (FM)
1 Vp-p @ 75 Ω
1 Vp-p @ 600 Ω
Directional
300 mA @12 VDC
120 VAC to 12 VDC
6.0” (w) x 5.625” (h) x 2.38” (d) (15.24 cm (w) x 14.29 cm (h) x 6.05 cm (d)) without drop cable
24.1 oz (686 g) with drop cable (approx.)
Specifications - RX module
Item
Receiving frequencies
Modulation
Receiver sensitivity
Video output level
Audio output level
Antenna
Power consumption
Power adapter
Dimensions
Weight
Specification
2.400 GHz, 2.427 GHz, 2.454 GHz, or 2.481 GHz (selectable)
Frequency (FM)
80 dBm
1 Vp-p @ 75 Ω
1 Vp-p @ 600 Ω
Omnidirectional
300 mA @ 12 VDC
120 VAC to 12 VDC
7.19” (w) x 7.45” (h) x 4.38” (d) (18.26 cm (w) x 18.92 cm (h) x 11.13 cm (d)) without drop cable
36.1 oz (1023 g) with drop cable (approx.)
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