Movcam Dark Tower Series User manual

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Content
Important ................................................................................................................ - 2 -
Notice ：.................................................................................................................. - 3 -
Product Introduction ............................................................................................... - 3 -
General Info ............................................................................................................ - 3 -
Specs ...................................................................................................................... -3,4-
Product
Features :................................................................................................... - 5-
Mechanical Structure .............................................................................................. - 6-
The
transmitter (TX) .............................................................................................. - 6,7-
The R eceiver (RX) .................................................................................................-7,8-
Operating Instructions............................................................................................ -8,9-
Troubleshooting .................................................................................................... - 10,11-
FCC Statement ....................................................................................................... -11-
F
CC radiation exposure statement .......................................................................... -12 -
Caution ！............................................................................................................... - 12 -

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Important
Thank you for purchasing Movcam Dark Tower system. Please read this user manual carefully
before using the product. This manual contains specifications and important information in regard
to Dark Tower and its functions.
Limited warranty service is provided when the product is properly handled according to the
instructions below.
However, the warranty dose not cover damages caused by the following situations:
where change of parts or repair is conducted by unauthorized person,
where the damage is caused by accidents, including but not limited to lightning, leaking,
exposure to rain or damp environment.
where power supply or adaptor does not comply with the instructions here.
where the serial number on the product/warranty label is changed or removed.
Caution
The product cannot be exposed in dripping or splashing environment
The receiver（RX box） / transmitter (TX box) must be put on solid flat and steady surface
Do not block the air chute on top of the product nor put any heavy object on the product
The RX box/TX box should be stored in places with good ventilation, and avoid direct
sunlight or heat.
To avoid the risk of fire or electric shock hazards, do not expose the product to rain or moist
environment.
Movcam reserves the right to any changes on the product or user manual without prior notice.
Notice：
Malfunction like video or audio output failure might occur when the product is used in the
following situations
1. The product is put on concrete wall,

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2. The product is put too close to fridge or metal parts,
3. The product is used in small crowded space
The product has passed tests and conform with safety regulations. But in certain situation,
radio interference might occur. Should this happen, please increase the distance between the
TX box and the RX box.
Product Introduction
The Dark Tower system is a very effective video transmission unit for live broadcast and film
shooting but without the complicated cable connection. It is easy and simple to set up the whole
system.
General Info
Dark Tower is mainly composed of one transmitter (TX) unit and one receiver (RX) unit.
Specifications
Items Specs
Frequency range From 5G(RX) and 2.4G(TX)
In accordance with different RF rules in
different countries
Wide Band 100MHz
Video formats 1080p 23.98/24/25/30/50/60
1080psf 23.98/24/25
1080i 50/59.94/60
720p 50/59.94/60
576p 576i 480p 480i
Audio format PCM, DTS-HD, Dolby TrueHD
Transmission distance 2300ft(Line of sight)
TX Unit
Antenna external antenna 5G x 2pcs ，2.4G CHIP antenna
transmission power 2.4G:2dBm, 5G:18dBm MAX
function interface SDI in, SDI out, Mini USB,
MBUS, DC IN, antenna,
Power ON/OFF
Mounting 1/4" hotshoe mount
OLED screen channel info; video status; battery info
power supply 11.5-17V DC in

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power consumption 7-8W
net weight 400g (including antennas)
dimension 142.5x76x24.3mm
temperature -10℃ to 50℃(operating); -40℃ to 80℃(storage)
RX Unit
antenna external antenna (RX)5G x 5pcs, (TX)2.4G x 1pcs
reception sensitivity 70dBm
Function interface SDI out x2, HDMI out, Mini USB,
MBUS, DC IN, antenna;
Power ON/OFF
mounting 1/4" hotshoe mount
OLED screen channel info, signal intensity, power info
power supply 11.5-17V DC power, or V-mount battery
power consumption 7-8W
net weight 800g （including antennas)
dimension 135x90x50mm
temperature -10℃ to 50℃(operating); -40℃ to 80℃(storage)
Movcam reserves the right to any changes on the product without prior notice.
Product Features:

Uncompressed 3G/HD/SD-SDI transmission, Uncompressed SDI signal can be up to
1080p50/60

Less than 1 frame delay in transmission
There is no noticeable video delay. So the product can be used as real time monitor on site
 Transmission distance 2000ft
In actual shooting , transmission distance might vary due to the shooting environment, radio
condition, and building.

license-free frequency range
Wireless frequency range among 5.1-5.9GHz，2.4G ISM frequency does not require license
transmission power 2.4G:2dBm

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 support group broadcast
Support one TX to multi RXs connection. Operators can set up channels to pair up the TX
and different RXs.

Built-in fan
TX box has a efficient fan built inside with low noise
 AES 128 encryption
 OLED display screen
 full metal cover for TX and RX boxes
 easy and quick connection
The TX card can start working right after being put in the TX box. No software setting is
required.
Mechanical Structure Info
TX Unit

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TX box
1 OLED Display screen
for channel info, video status, signal intensity, and power info
2 Multi-direction switch
for channel switch, menu operation
3 Power ON/OFF
Turn on / off the TX unit
4 SDI IN
Connect to the SDI port on camera
5 SDI OUT
connect to other SDI equipment if need be
6 DC IN
Support 11.5-17V
7 antenna mounts x 2
to mount antenna
8 MBUS

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RX Unit
RX box
1 antenna mounts x5
to mount antennas
2 OLED Display screen
for channel info, audio info, signal intensity, and power info
3 multi-direction switch
for channel select, menu operation
4 Power ON/OFF
Turn on/off RX
5 battery power out
to power up external equipment
6 HDMI OUT
to connect HDMI monitor or other equipment
7 SDI OUT x2
to connect to SDI monitor or other equipment
8 DC IN

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support 11.5-17V power
9 battery bracket
for V-mount battery
Dark Tower Operation Instructions
DT wireless system consists of the TX Unit(includes TX card and TX box)， the RX unit and 7x
pcs external antennas. Please follow the steps below for proper setup and channel pairing settings.
1. Firstly, drop the red TX card into the TX box, and secure the antennas on top of the TX card
and that of the RX box. Then, connect to the power supply and turn on the RX and TX
respectively.

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2. Connect 2.4G wireless communication between the TX and the RX units.
1）On the main menu page of the TX, click on RF Setting to go to the next page and select
Channel on this page. The product has 9 channel options under 2.4G communication. Select the
channel you want.
2）Repeat the above 2.1)operation on RX unit. Select the same channel as that on the TX unit to

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connect the TX and the RX.
3. When signal bar appears on the RX screen, it means that the TX box and RX box are
connected successfully. The information displayed on the screen now is the channel
number and signal intensity.
4. Connect and pair 5.8G wireless communication between the TX and RX. Only after 2.4 G
connection succeeds can we start connection and pairing under 5.8G
1) On the main menu page of the TX box, Click on WFP Setting to enter the next menu page
and select Channel on this page. The product has 12 channel options under 5.8G. Select your
channel, and then go back to the main menu page.

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2) Repeat the above operation (Step3.1)on the RX box, select the same channel as the TX box
and then go back to the main menu page.
3) On the main menu page of TX box, click on WFP Setting to enter the next menu page.
double-click on Pair on this page,
Repeat the same on the RX box. (On the main menu page of TX box, click on WFP Setting to
enter the next menu page. Double-click on Pair on this page.)
And Wait.

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4) When the TX screen reads Done and Other, while the RX screen reads Done, it means
pairing succeeds between TX box and RX box under 5.8G.
5. Go back to the main menu page. Connect the HDSDI input port of TX box with the camera
SDI port, Black Tower is ready for video transmission.
6. In case multiple RXs are required to work simultaneously for the shooting, turn off the power
of the above RX box after successful pairing at step 3.4) ,then Click on Other on the TX

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screen. Get the second RX ready by turning it on, then repeat the above steps 3.2), 3.3),
3.4).to get a new pairing established. Repeat this section to establish more connection and
pairing.
Trouble shooting
In case RX cannot transmit video to monitor properly, please first refer to the following chart for
possible reasons and solutions.
Malfunction and possible reasons Solutions
OSD info on Display screen
Continuous display of "waiting for connection"
TX is not powered Turn on TX power
TX or RX is not properly placed
Place TX or RX properly on even surface
Distance between TX & RX is too far
away
Shorten the distance
Walls between TX and RX Reduce the concrete wall blocks between them
too many obstacles between TX & RX reduce the obstacles between RX and TX
other TX is working on the same channel Turn off the other TX or change channel
Cannot receive video signal
TX is not properly connected to camera USE SDI cable to connect TX and camera
camera vedio is not on turn on camera video
TX cable is not connected properly Re-plug the cable properly
malfunction of TX Re-start TX
Cable problem between TX and camera
output
Change new SDI cable
player does not support output resolution
format
Switch video resolution to other formats
monitor does not support HDCP
certificate
Change to HDCP certified Monitor
IMAGE
no signal to RX or monitor
RX is off RX Turn on RX
RX and monitor are not connected Connect RX to the monitor via SDI/HDMI input
cable
monitor is not on SDI / HDMI input Switch monitor to SDI/HDMI input
bad cable contact to RX or to the monitor
Re-plug the SDI/HDMI cable
The monitor is in standby mode Switch the monitor to operation mode

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malfunction of RX Re-start RX
No image on the monitor
connection failure between RX box and
cable
Reconnect the cable between the RX and monitor
RX box malfunction Re-start RX box
RX failure please contact your dealer
abnormal colors on the monitor screen
bad contact between RX and monitor Re-plug the TX box and monitor via
HDMI cable
bad connect of TX SDI cable Re-plug the SDI cable to the TX
Abnormal operation of TX or RX Re-start TX or RX
FCC statement
The device has been tested and complies with Section 15 of the FCC rules for class B digital
devices.
These restrictions are intended to provide reasonable protection against harmful interference in
residential installations. This equipment produces, uses and may radiate radio frequency energy,
which, if not installed and used in accordance with the instructions, may cause harmful
interference with radio communications.
However, there is no guarantee that no interference will occur in a particular installation. If the
device does cause harmful interference to radio or television reception, this can be determined by
turning the device off and on. It is recommended that the user attempt to correct the interference

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by one or more of the following measures: - adjust or reposition the receiving antenna. Increase
the distance between the device and the receiver. Connect the device to a different circuit
connected to the receiver. Consult distributors or experienced radio/TV technicians for assistance.
To ensure continued compliance, any changes or modifications that are not expressly approved by
the responsible compliance party may invalidate the user's authority to operate the
equipment.(Only use shielded interface cables when connecting computer or external equipment).
FCC Radiation Exposure Declaration
This device complies with FCC RF radiation exposure limits specified for uncontrolled
environments. The transmitter shall not be located or operated in conjunction with any other
antenna or transmitter. This device complies with section 15 of the FCC rules.
The operation meets the following two conditions:
1) the equipment will not produce harmful interference.
2) the equipment must be subject to any interference received, including interference that may
result in accidental operation.
Cautions!
The manufacturer is not responsible for radio or television interference or other failure caused by
unauthorized modifications to the product.
Such modifications may invalidate the user's authority to operate the device.