DWARF CONNECTION DC-Link-ULR1 Video Transmission System Instruction Manual
- June 6, 2024
- DWARF CONNECTION
Table of Contents
CONNECTION DC-Link-ULR1 Video Transmission System
I nstruction Manual
DC-LINK-LR2 / DC-LINK-ULR1
Long Range Wireless HDMI/SDI HD Video Transmission Suite for Indoor use
Manual / Handbuch
Introduction
Congratulations on purchasing the DC-Link-ULR1 Video Transmission System.
Please read this manual carefully before operating your product, and ensure it
is kept in a safe place.
The technology contained in this product, including the device itself as well
as related software and trademarks, is protected by law. Any duplication or
reproduction without the written permission of the copyright owner is
prohibited, in part or in full. All third-party brands or copyrights mentioned
in this manual are the property of their respective owners.
This product has a limited warranty of one year. Warranty may be voided by:
- Physical damage to the product
- Any damage caused by improper use, maintenance or storage
- Damage resulting from the use of incorrect power supplies
- Damage not related to the design of the product or the quality of its manufacture
Safety Precautions
The Video Transmission System
Do not block or obstruct air vents, as this may cause short circuits, fire or
electric shocks. Turn the device off immediately if it comes into contact with
liquids.
The Power Supply
The device may be used with batteries or AC-DC power supplies of the voltage
specified on the device or in the enclosed documentation. If batteries are
used, please ensure that the batteries are compatible and have no cracks or
leaks. Please use the enclosed power adapter. When using a third-party power
adapter, please ensure that the adapter conforms to the specifications of the
device and has the correct polarity.
Remove the power supply if:
– The device will not be used for an extended period of time
– The power cable is damaged
– The exterior of the device is damaged.
Operating Environments
- Due to current regulations governing the use of radio-based systems, this device is authorized for indoor use with the pre-installed channels five and six (by law, “indoor use” is defined as use in a building including places assimilated thereto in which the shielding will typically provide the necessary attenuation).
- Do not place the device on metallic surfaces, to ensure effective data transfer.
- Do not place the device on dirty or damp surfaces.
- Do not use the device in the proximity of water or in high humidity, near open fires or gas pipes, or near electrical mains.
Overview
The DC-Link-ULR1 is a high-performance WHDI video transmission system that transmits uncompressed video and audio signals up to 1000m with low latency (1 ms delay). Due to the conscious decision not to implement the DFS (Dynamic Frequency Selection) System, which is compulsory for outdoor use, the device has a longer range, greater stability and better usability than comparable systems, but is only authorized for indoor use. The transmitter and receiver both have 3G-HD-SDI and HDMI connectors (Plug & Play). When a video source is attached, the transmitter automatically selects the input (SDI is prioritized). The receiver’s 3G-HD-SDI and HDMI outputs may be used simultaneously.
Characteristics
-
1000m Range
Transmission ranges of up to 1000m are possible with good line-of-sight and optimum antenna positioning -
Rapid and Reliable Connectivity
The decision not to implement the DFS System compulsory for outdoor use, as well as the preinstalled transmission channels, means there is no need for complex pairing procedures. In addition, transmission stability is increased -
Real-Time Transmission
With a latency of less than 1ms, the system is suitable for live monitoring applications -
Uncompressed Transmission
10-bit, 4:2:2 transmissions via 3G-SDI and HDMI without format conversion -
Supports Formats up to and including 1080p 60Hz
-
2- Channel Audio Transmission
Embedded audio transmission on CH1 & CH2 via SDI and HDMI, incl. formats such as Dolby TrueHD, DTS-Master, etc. -
License-free Frequency Band
Functions in the license-free 5GHz ISM frequency range from 5.1-5.9GHz -
Multicast Support
1:1 or 1:n transmissions with up to four parallel systems -
Metadata- and Timecode Transmission
-
AES-128 Encryption
-
Metal Casing
The transmitter and receiver are extremely durable -
Variable Input Voltage
Input voltage range from 9.0-18.0V DC allows the system to be operated with a variety of batteries or power supplies -
Status Displays
Status displays for DC power, video, and RSSI signal strength -
Mount
1/4″ tripod mount -
Battery Adapter Plate
Delivered with NPF/V-Mount battery plates as standard -
Plug-and-Play Design
Ready to use without the need for complex configuration
Product Description
Transmitter:
- ¼” Tripod Mount
- Antenna Connection: SMA (male) Connector
- Menu button: Unlock/lock screen
- Control button: Press to change the channels
- LCD screen: Display channel, power level, temperature info.
- ON-OFF: Power Switch
- SDI-IN: 3G/HD/SD-SDI Input, (BNC Female Connector)
- SDI LOOP-OUT: 3G/HD/SD-SDI Output, (BNC Female Connector)
- HDMI-IN: HDMI Input (Type A Female Connector)
- DC-IN: 9 18V DC
- Mini USB: For firmware upgrade use.
Receiver:
- ¼” Tripod Mount
- Antenna Connection: RP-SMA (male) Connector
- RSSI Status Display: Signal Strength
- Menu button: Unlock/lock screen
- Control button: Press to change the channels
- LCD screen: Display channel, BAT voltage, temperature info.
- ON-OFF: Power Switch
- HDMI-OUT: HDMI Output (Type A Female Connector)
- Dual SDI-OUT: 3G/HD/SD-SDI Output, (BNC Female Connector)
- DC-IN: 9.0 18.0V DC
- Mini USB: For firmware upgrade use.
Operation
Transmitter
- Connect the two omnidirectional antennas to the SMA male connectors.
- There is a ¼” tripod mount at the base of the transmitter if required.
- Use the enclosed 4-pin male-to-D-TAP cable to connect to a power supply with a suitable voltage.
Receiver
- There is a ¼” tripod mount at the base of the receiver if required.
- Use the enclosed 4-pin male-to-D-TAP cable to connect to a power supply with a suitable voltage.
- Ensure you have selected the frequency that corresponds to that of the transmitter.
Signal Distribution
Connect the camera’s SDI or HDMI output to the transmitter’s SDI or HDMI
input. If both SDI and HDMI inputs are active, the transmitter will prioritize
the SDI signal.
Connect the receiver’s SDI or HDMI output to the SDI or HDMI input of the
monitoring/recording device. During active transmission, both the SDI and the
HDMI output on the receiver can be used simultaneously.
Ensure that the antennas are connected firmly, that all other connections are
stable, and that the batteries are suitable.
Antenna Positioning
Position the antennas on the transmitter and receiver at right angles as shown
in the illustration. This ensures the best possible RF performance.
Install the transmitter and the receiver as high as possible (at least 1.5
meters above ground level), to maintain a good line of sight. During
operation, try to keep the transmitter and the receiver at similar heights.
Avoid obstacles such as walls, trees, water, and steel structures between
transmitter and receiver as much as possible.
The connection is at its strongest when the flat surfaces of the transmitter
and receiver face each other (see illustration).
Choosing a Channel
- To press and hold the “Menu” key with 2s, this unlock icon” “is shown on the OLED.
- To press key “+” or “-” to select this desired channel and then press this “MENU” key to confirm
The system functions with 4 channels in the license-free 5 GHz ISM frequency
band. Both the transmitter and the receiver have a frequency selector with
positions from 1-4. Both the transmitter and the receiver have to be set to
the same channel in or to communicate with each other. If several systems are
used at once, then the channels used should be as far from each other as
possible to avoid interference or a reduction in range. A maximum number of 4
systems simultaneously is recommended.
RSSI Display
The RSSI (Wireless Received Signal Strength Indicator) display shows the
strength of the signal, allowing the operator to ensure the system is working
reliably.
| Display | Status | Desolation |
|---|---|---|
| RSSI | 0-1 LEDs | Radio signal strength is weak and artifacts are visible in the |
video signal
2-3 LEDs| Radio signal strength is normal and video quality is good
4-5 LEDs| Radio signal strength is very strong and video quality is very good
Establishing a Connection
Once all previous steps have been performed, turn on the transmitter and the
receiver using the power switch. Once the transmitter recognizes a video
input, the video format will show on the LCD screen.
It takes approximately 10-30 seconds for the transmitter to connect to the
receiver. During this brief period, the receiver’s video displays “Waiting for
connection”.
Maintenance
Please do not attempt to repair, modify or alter these devices under any
circumstances.
Clean the devices with a soft, clean, dry, and lint-free cloth. Do not open
the devices, they contain no user-serviceable parts.
Storage
The devices can be stored at temperatures between -20°C and 60°C. For long-
term storage, please use the original transport case and avoid environmental
conditions such as high humidity, dust, or excessively acidic or base
surroundings.
Warning!
To ensure your own safety, please use only high-quality brand-name batteries,
and follow the safety information and instructions provided by the
manufacturer.
Troubleshooting
| Possible Cause| Possible Solution
---|---|---
No video output| Lack of power| Check power supplies of transmitter and
receiver and ensure that all cables are
connected correctly and that there is sufficient power
Antennas| Ensure antennas are not damaged and are firmly connected
Video connection cable| Examine the transmitter’s “Video” LED display. If the
LED is dark, check the HDMI or SDI connection cable
Frequency selection| Ensure that the transmitter and receiver are set to the
same channel
Unsupported video format| Check your selected video format against the
product’s technical specifications
Inadequate video quality| Connections| Check to ensure that all SDI or HDMI
cables are firmly connected
The range is too great or the signal is obstructed| Check how many “RSSI” LEDs
are lit on the receiver. For decent quality, at least 2-3 LEDs should be lit.
If only one is lit, the signal is weak and the distance between transmitter
and receiver should be reduced. Alternatively, obstacles between the devices
should be removed or another channel selected
A radio signal is experiencing interference| Wait one minute then restart the
transmitter and receiver or change the frequency channel
Technical Specifications
| transmitter| receiver
---|---|---
connections| lx SDI Input (BNC female)
lx SDI Output (BNC female)
lx HDMI Input (Type A female)
2x Antenna (RP-SMA Male)
lx DC Input (4-pin female)| 2x SDI Output (BNC female)
lx HDMI Output (Type A
female)
5x Antenna (RP-SMA male)
lx DC Input (4-pin female)
Power| 9.0 — 18.0V DC| 9.0 — 18.0V DC
Power Consumption| < 8 W| < 8 W
Dimensions (LxBxH), w/o Antennas| 143.5 x 74.5 x 21.4mm| 147.8 x 100 x 20mm
Wei t| 380| 40
upported Video Formats| 1080p(60, 59.94, 50, 30, 29.97, 25, 24, 23.98) 1080i
(60, 59.94, 50) 720p (60, 59.94, 50) 576i (50) 480i (59,94)| 1080p(60, 59.94,
50, 30, 29.97, 25, 24, 23.98) 1080i (60, 59.94, 50) 720p (60, 59.94, 50) 576i
(50) 480i (59,94)
Audio Format| SDI Embedded 2 Channel
Audio 24bit/48kHz| SDI Embedded 2 Channel
Audio 24bit/48kHz
Displays| 0.91 inch OLED panel| 0.91 inch OLED panel
5 LEDs for RSSI indicator
| |
| |
Transmitting Power| Less than 20 dBm| –
Receiver Sensitivity| | – 75 dBm
Bandwidth| 40MHz| 40MHz
Operating Temperature| 0 — 40°C (Operation)
-20 — 60°C (Stora )| 0 — 40°C (Operation)
-20 — 60°C (Stora )
Certification| CE| CE
Included with Purchase
- 1x Transmitter
- 1x Receiver
- 9x External Antennas (can be ordered individually)
- 2x DC Adapter Cables from Anton Bauer (D-Tap) (m) to 4-pin DC Connector(m)
- 2x Power Supplies
- 1x Magic-Arm with 1/4″ Screw
- 1x Hot Shoe Adapter
- 2x Slot Screwdriver
DwarfConnection
OG Münzfeld 51,
A-4810 Gmunden, Austria
office@dwarfconnection.com
www.dwarfconnection.com
Errors and omissions excepted.
FCC Warning
This device complies with part 15 of the FCC rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates uses and
can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
a minimum distance of 20cm between the radiator and your body.
References
Read User Manual Online (PDF format)
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