BSi Mini-Tx UHD User manual

NORTH AMERICA
Broadcast Sports International,
7455 Race Road
Hanover, MD 21076
United States
Tel: [phone]
Email: [email protected]
INTERNATIONAL
Broadcast Sports International,
Axis 3, Rhodes Way
Watford, Hertfordshire WD24 4YW
United Kingdom
Tel: [phone]
Email: [email protected]
Mini-Tx UHD
Product Manual
Revision B

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Mini-Tx UHD | Product Manual
Manual part number: 13489-1-000
Revision B
Copyright © 2021, Broadcast Sports International. All Rights Reserved.
This publication or parts thereof may not be reproduced in any form, by any method, for any purpose. Company
names, logos and product names are registered trademarks or trademarks of their respective owners. Broadcast
Sports International or any of its group companies make no claim to third-party trademarks. The use of Broadcast
Sports International’s products, services and materials is subject to the Broadcast Sports International General
Sales Terms and Conditions.
This manual contains important information regarding the installation and operation of the Mini Tx UHD. For safe
and reliable operation, installers must ensure that they are familiar with, and fully understand, all instructions
contained herein. Broadcast Sports International reserves the right to revise and improve its products as it sees
fit. This publication describes the state of this product at the time of publication and may not always reflect the
product in the future.
In this manual, the following symbols call your attention to important information:
CAUTION
Indicates that care is required when proceeding to avoid damage to the system.
NOTE
Used to draw your attention to additional important information.
WARNING
Indicates a potentially hazardous situation.
Warranty Information
All products are warranted to be free from defects in materials or workmanship for a period of 24 months. If
returned within the applicable warranty period, BSI will, at its sole discretion and at no cost to the customer, repair
or replace the defective product with another unit of the same or equivalent model. This warranty does not cover
failures due to abuse, misuse, accident or unauthorized alterations or repairs.
Contact details and technical support
Real Freedom Team
For product information and help with missing or damaged items.
Email: [e-mail]
Tel: [phone]
Telephone Support Line
Product technical support is provided via a telephone support line. Trained
technicians are available to offer setup and configuration advice and to assist
in troubleshooting technical issues.
Tel: [phone]
Return Merchandise
Authorization (RMA)
Procedure
Problems that cannot be resolved on the telephone may require the device to
be returned to BSI for repair. In such cases, the telephone operator will assist
the customer in obtaining an RMA.
Please note that no returns can be accepted without a valid RMA.
About this manual
This manual contains safety information and information for installing, configuring, and operating a Mini Tx UHD.
It applies to the following product: Mini-Tx UHD

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Mini-Tx UHD | Product Manual
Contents
Contents .................................................................................................................................................................. 3
Introduction............................................................................................................................................................. 6
Location and functions of parts........................................................................................................................... 6
Top view .......................................................................................................................................................... 6
Front view & side view .................................................................................................................................... 7
Bottom view .................................................................................................................................................... 8
Installation............................................................................................................................................................. 10
Overview............................................................................................................................................................ 10
Preparation........................................................................................................................................................ 10
Power requirements...................................................................................................................................... 10
Unpack the Mini Tx UHD ............................................................................................................................... 10
Additional items required for installation..................................................................................................... 10
Cable requirements....................................................................................................................................... 11
Cable for remote ports.................................................................................................................................. 11
Connections................................................................................................................................................... 12
Attach a Mini Tx UHD to a camera................................................................................................................ 12
Attach Mini-Tx UHD to its camera back adaptor........................................................................................... 14
Connection’s checklist................................................................................................................................... 15
Transmitter Configuration..................................................................................................................................... 16
Overview............................................................................................................................................................ 16
Before you start................................................................................................................................................. 16
Mini-Tx UHD configuration................................................................................................................................ 16
Main configuration page ............................................................................................................................... 16
Camera control settings ................................................................................................................................ 17
Transmit power and frequency......................................................................................................................... 18
Advanced transmit settings........................................................................................................................... 20
Video source, format, and encoder................................................................................................................... 20
Video settings................................................................................................................................................ 20
Encoder settings............................................................................................................................................ 21
Advance encoder settings ............................................................................................................................. 21
Settings.............................................................................................................................................................. 22
Network......................................................................................................................................................... 23
Audio ................................................................................................................................................................. 25

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Location............................................................................................................................................................. 25
Operation .............................................................................................................................................................. 26
Status LEDs ........................................................................................................................................................ 26
Routine checks................................................................................................................................................... 27
Verify the connection to the camera ............................................................................................................ 27
Monitor audio and signal levels .................................................................................................................... 27
Troubleshooting .................................................................................................................................................... 28
Troubleshooting main page............................................................................................................................... 28
Maintenance.......................................................................................................................................................... 29
Routine maintenance procedures..................................................................................................................... 29
Performance monitoring............................................................................................................................... 29
Visual inspection............................................................................................................................................ 29
Cleaning............................................................................................................................................................. 29
Storage .............................................................................................................................................................. 29
Update the transmitter’s firmware................................................................................................................... 30
A Technical data .................................................................................................................................................... 31
Dimensions........................................................................................................................................................ 31
Mini- Tx UHD Quad Input .............................................................................................................................. 31
Mini-Tx UHD single input............................................................................................................................... 32
Specifications..................................................................................................................................................... 33
Audio ............................................................................................................................................................. 33
Video.............................................................................................................................................................. 33
Camera Control ............................................................................................................................................. 34
RF (Tx)............................................................................................................................................................ 34
RF (Rx)............................................................................................................................................................ 34
Connectors .................................................................................................................................................... 35
Physical.......................................................................................................................................................... 35
Environmental ............................................................................................................................................... 35
Future Releases (*)........................................................................................................................................ 35
Connector pinout assignments ......................................................................................................................... 36
Antenna port –RF output.............................................................................................................................. 36
Antenna port –UHF input ............................................................................................................................. 37
ASI / SDI video input...................................................................................................................................... 37
Audio & Camera control................................................................................................................................ 37

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Power............................................................................................................................................................. 38
Audio (Single Front Panel)............................................................................................................................. 38
Camera Control (Single Front Panel)............................................................................................................. 39
B Safety and regulatory compliance...................................................................................................................... 40
Safety notice...................................................................................................................................................... 40
Electromagnetic compatibility –Class A ........................................................................................................... 40
Compliance statement (United States) ......................................................................................................... 40
CE Declaration of Conformity (European Union) .......................................................................................... 40
Disposal and recycling –European Union.................................................................................................. 40

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Introduction
The award winning Mini-TX UHD is the world's smallest ultra-low latency UHD wireless video transmitter on the
market, measuring just 85mm long by 56mm wide and 28mm deep. It can transmit in two entirely different
frequency bands via its software-defined radio, offering complete on-site spectrum flexibility without the need for
changeable radio modules. But, even with its compact size, the Mini-Tx UHD includes all the features expected
from a traditional wireless video transmitter, and more, with pre-distortion, GPS, Wi-Fi, and a 3-axis accelerometer
as standard and a dual UHF receiver to add robustness and flexibility to the camera control.
The Mini-Tx UHD also includes changeable connector panels for different applications, like a single UHD/HD video
input, Quad HD/Single UHD inputs or Quad HD with power and control over SDI. Additional features available with
the Mini-Tx UHD include video formats up to 2160p59; HEVC and AVC video encoding at 8/10-bit 4:2:2/4:2:0; up
to 32 Mbps video bitrate per pedestal; four channels of embedded SDI audio; two channels of analogue MIC/Line
selectable audio with MIC phantom power; MPEG1L2 audio encoding; support for HDR; and Tx frequency options
from 1.4 to 7.5 GHz. The transmitter also allows power and BSI data to be transmitted over SDI (HD only).
Location and functions of parts
This section provides an overview of the components and connectors on the Mini Tx UHD. You should
familiarize yourself with this information before installing and operating the transmitter.
Top view
The top of the Mini-Tx UHD’s RF section provides connectors to attach a UHF input antenna and an RF output
antenna.
Key
Component
Description
1
SMA connector
Use to connect a UHF antenna to receive camera control data from a data
transmitter.
2
SMA connector
(Low-band)
Use to connect an RF antenna of frequency 1.4 or 2GHz to the Mini Tx UHD.
3
SMA connector
(High-band)
Use to connect an RF antenna of frequency 7GHz to the Mini Tx UHD.

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Front view & side view
Key
Component
Description
1
LCD
Use to view status information and configurations of the Mini Tx UHD.
2
Joystick
Use to navigate through the Mini Tx UHD’s display screen. Press and hold
‘Enter’ on the joystick for more than 4sec to enter the menu page.
Toggle the joystick up/down to change values and left/right to scroll through
the menus.
3
GPS Antenna
Use to receive GNSS signals needed for the Mini-Tx UHD to relay location
information.
4
Wi-Fi Antenna
Use to wirelessly communicate with other networking devices.
5
Micro USB
Use to provide firmware upgrade, peripheral connection, and USB to Ethernet
dongle.
6
Fan housing
Ensures proper heat transfer and circulation of air to avoid over-heating of the
Mini-Tx UHD.
CAUTION: Do not cover the Wi-Fi and GPS antennas with any RF blocking items as it can disturb
the signal in an unpredictable way.

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Bottom view
View the bottom view of Mini-Tx UHD for single input and quad input below,
Mini-Tx UHD Single Input
Key
Component
Description
1
CAM CTRL
Use to connect the camera back transmitter to the ‘Remote’ port on the camera to
control camera settings. See Cable for Remote ports to connect different cameras to the
Mini-Tx UHD.
Connector: LEMO 0B 7-pin.
2
AUDIO
Use to connect a microphone or audio signal from signal-processing equipment and
mixing consoles.
Connector: LEMO 0B 6-pin
3
SDI
Use to connect the Mini-Tx UHD to the camera’s SDI port if you are using SDI as the
video source.
Connector: HD-BNC (F).
4
DC
Use to connect an external DC power supply(8-20 V) to power the Mini-Tx UHD.
Connector: LEMO 0B 2-pin
1
2
3
4

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Mini-Tx UHD Quad Input
NOTE: The front panel board of Mini-Tx UHD has three versions of SDI input which are all valid,
single UHD input, Quad 12G, and Quad 3G-CXP input.
Key
Component
Description
1
AUX
Use for auxiliary data and analog audio input.
Connector: LEMO 0B 9-pin
2
SDI IN 1
Use to connect the Mini-Tx UHD to the camera’s SDI port if you are using
SDI as the video source.
The Mini-Tx UHD has the following versions of SDI input- single UHD
input, quad 12G input, and quad 3G-CXP input.
Connector: HD-BNC (F).
3
SDI IN 2
4
SDI IN 3
5
SDI IN 4
6
8-20 V DC
Use to connect an external DC power supply to power the Mini-Tx UHD.
Connector: LEMO 0B 2-pin

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Installation
This chapter contains the installation instructions for the Mini Tx UHD.
Before installing, you should familiarize yourself with the Location and functions of parts, which provides
information about the Mini Tx UHD.
Overview
The main installation steps for a Mini Tx UHD are as follows:
1. Attach the camera mount to the camera.
2. Attach the Mini Tx UHD to the camera mount.
3. Connect the Mini Tx UHD to the camera.
Preparation
Before connecting and configuring the Mini Tx UHD, you should familiarize yourself with the transmitter’s
environmental and power requirements.
Specification
Details
Humidity
95% non-condensing
Temperature
-20 to +45 degrees C
Table 1: Environmental requirements
Power requirements
The following table summarizes the power requirements for a Mini-Tx UHD.
Specification
Details
Connector
LEMO 0B 2-pin ECG.0B.302.CLV
Supply
8-20 V DC
Table 2: Power requirements
Unpack the Mini Tx UHD
Unpack the Mini Tx UHD and refer to the packing list to ensure that all items are included. Report any missing
items immediately to the Real Freedom Team.
Inspect the Mini Tx UHD for signs of damage. Report any damage to the Real Freedom Team.
Additional items required for installation
To install the Mini Tx UHD, you will require the following additional items:
•Camera
The Mini Tx UHD is compatible with most hand-held broadcast cameras.

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•Camera mount.
BSI supply custom ‘camera backs’ that attach to different types of commercial cameras. These mounts
have an integrated battery sled and power cables and allow the Mini Tx UHD to be connected to the
camera.
•8-20 V DC power supply.
Cable requirements
To install the Mini Tx UHD, you will require the following cables:
•Coaxial cables with HD-BNC connectors.
It is recommended that you use good quality 75 Ohm cable.
If you are using a single input panel the LEMO cables are 7-pin and 6-pin.
•LEMO cable (JGG.0B.302.CLAD32, JGG.0B.309.CLAD52).
NOTE: The cable for the remote parts depends on the front panel of the Mini-Tx UHD and the
type of camera. To order the cables from Cable for remote parts, contact the Real Freedom
Team.
Cable for remote ports
Below are the list part numbers of cables that is used to connect different cameras to the Mini-Tx UHD.
Cables Part Number
Camera
13489-5-020
Sony Camera
13489-5-021
Sony SDI
13489-5-024
GV LDK Camera
13489-5-025
GV LDXC Camera
13489-5-026
GV LDX Camera
13489-5-027
GV LDX-NEP Camera
13489-5-033
Dreamchip Camera
13489-5-040
Sony Camera Quad
13489-5-041
Sony Camera & Audio Quad
13489-5-042
GV LDK Camera Quad
13489-5-043
GV LDK Camera & Audio Quad
13489-5-044
GV LDXC Camera Quad
13489-5-045
GV LDXC Camera & Audio Quad
13489-5-046
GV LDX Camera Quad
13489-5-047
GV LDX camera & Audio Quad
13489-5-048
GV LDX-NEP Camera Quad
13489-5-049
GV LDX-NEP Camera & Audio Quad
13489-5-050
Marshall Camera Quad
13489-5-051
Marshall Camera & Audio Quad
Table 3: Cable for remote ports

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Connections
Refer to the Location and functions of parts which shows the locations of the connectors on the Mini-Tx UHD.
Attach a Mini Tx UHD to a camera
Use an appropriate BSI camera back to attach the Mini-Tx UHD to the camera.
The following procedure describes how to attach a Mini-x UHD to a Sony camera using a BSI camera back
(20005-9-002).
1. Attach the shoe assembly, V edge (1), to the camera using four M3 x 10 screws.
Alternatively, attach a BSI camera shoe (3) to the camera using four M3 x 10 screws.
2. Attach the lower hook (2) to the camera using two M3 x 6 screws.
3. Attach the camera back (4) to the camera. To do this slide the V wedge on the camera back into the shoe
assembly and the lower mounting block into the lower hook. If you are using a BSI camera shoe, secure the
V wedge with an M5 x 25 screw.

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4. Attach mounting studs to the side of the Mini-Tx UHD (5) using M5 x 15 flat head socket cap screws.
To attach Mini-Tx UHD to its camera back adaptor like in (5) below, follow these steps.
5. Align the mounting studs with the holes in the mounting bracket and engage the Mini-Tx UHD (5). Push the
transmitter latch up and close the safety latch.
6. Attach the battery (6) to the camera back.

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7. Insert the return video receiver (7) into the slot in the camera back. The receiver clips into place.
8. Attach the power cables to the camera, Mini-Tx UHD, and return video receiver.
Attach Mini-Tx UHD to its camera back adaptor
•Attach cable assembly antenna (2) to the Mini-Tx UHD antenna connectors.
•Place the attached Mini-Tx UHD in its camera back adaptor (3) and secure it with the 20005-9-087 UHD
screw.

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Connection’s checklist
Use the following table to ensure that the connections to the Mini Tx UHD are correct.
Component
Connector/cable type
Notes
Mini Tx UHD
power
LEMO 2-pin to battery pack
Mini Tx UHD
video
HD-BNC to camera SDI
Mini Tx UHD
antenna
SMA (F)connector
Mini Tx UHD
audio
LEMO 9-pin or AUX
LEMO 6-pin
Apply to single front panel
Mini Tx UHD
control
LEMO 9-pin or AUX
LEMO 7- pin
Apply to single front panel
Table 4: Connection’s checklist

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Transmitter Configuration
Once powered, use the joystick on the Mini Tx UHD to configure the transmitter and view status information.
Overview
To configure the Mini Tx UHD, you must do the following:
1. Set the transmit frequency and adjust the transmit power.
2. Set the camera control frequency.
3. Define the camera type and camera number.
4. Assign audio settings.
Before you start
To configure the Mini Tx UHD, you will need the following information:
•Transmit and camera control frequencies.
•Camera type and camera number from the camera’s control panel.
Mini-Tx UHD configuration
The LCD screens display the configuration setting of the Mini-Tx UHD. Toggle the joystick up/down to set the
required number or parameter select the required setting. Once you set the parameter, press joystick in the
centre. The information and settings on the main configuration page are as follows:
Main configuration page
Use this main page to define the camera number, camera type, Real Freedom Receiver frequency, and data
frequency.
1. Displays diagnostic information.
2. Set the required camera ID number and camera type. In
the example, 462.93750rx is the data transmitter
frequency and 2265.000 is the frequency of video,
audio, and telemetry CAN data.
3. Displays the input video format when the Mini-Tx UHD is
powered and connected to the camera. In the example,
1080p50 is the video format.
16.1M is bandwidth of total data that include video,
audio, and telemetry. This bandwidth is based on the
constellation, code rate, and guard interval parameters
in Transmit settings.
NOTE: The camera ID is shown on the camera’s Operator Control Panel/Remote Control Panel

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Camera control settings
Tap the camera number icon to display the Camera Control page. Use this page to enter details of the of the
camera that you are using. It is important to enter all the settings correctly so that the camera transmitter can
communicate with the camera.
When you have selected the appropriate settings, toggle the joystick left to return to the main page.
Setting
Description
Cam Control
You need to set the required camera control frequency, which is the frequency
used by the data transmitter to send camera control data to the Mini-Tx UHD.
You also need to ensure that the camera type and it’s ID are set correctly.
Tap the current value, change the numbers to the required frequency by toggling
the joystick up/down.
Camera Type/Protocol
Defines the camera type –Auto, Sony, POV, Ike, GV, Pelco, Visca, In car.
Tap the current type, toggle the joystick up/down to choose the camera type that
you want.
Call: Sony
Camera Type set to ‘Sony’.
Sony Call is required on Sony camcorder-style cameras to allow tally to operate.
GV Series
Camera Type set to ‘Grass Valley’.
Tap to define the camera series, either ‘LDK’ or ‘LDX’.
Ikegami Mode
Camera Type set to ‘Ikegami’.
Tap to select the value mode, ‘Absolute’ or ‘Relative’.
Refer to the camera’s operator control panel manual for an explanation of these
settings.

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Power Trigger
In the web/UI menu configuration, you now have the below options for external
Tally.
Power Trigger
Power Outcome
On
Power is On unconditionally
Off
Power is Off unconditionally(forced for HW missing the pin)
TallyR
Power follows Tally Red
TallyG
Power follows Tally Green
Tallies
Power is Off only if both Tallies are Off
CamPwr1
Power follows Camera Power (1st camera)
NOTE: This configuration for camera contrrl power pin is available on
Mini-Tx UHD single input front panel board from software update
v3.2.5 only.
IMPORTANT: This output is a battery voltage pass-thru and this will
probably require some external regulation to drive a tally LED. The
output has a load switch to protect against short-circuit and the usual
on-site miss wiring, etc.
Table 5: Camera control settings
Transmit power and frequency
Use this Transmit page to define advanced settings used to transmit the video signal. When you have selected
the appropriate settings, toggle the joystick left to return to the main page. You must define the transmit power
and frequency. Note that the transmit frequency set here and the receive frequency set on the receiver must be
the same.

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Setting
Description
TX Power
Defines the transmit output power. Toggle the joystick up/down to set the
required power.
Transmit power directly impacts signal range. The more power, the longer
the range. Increasing the power can also make the signal more stable, but
keep in mind it can have a negative effect on battery life.
If the power is too low, the camera range may be insufficient resulting in
loss of RF signal and video image.
Transmit Frequency (MHz)
Set the transmit frequency assigned for your event.
Set the current value, change the numbers to the required frequency and
toggle joystick left to return to the main menu.
Note that you can keep the transmit and receive frequency at the same
value by selecting the Update Receive Frequency option from the
receiver’s Remote Tx Crtl menu. Then, if you change the transmit
frequency, the receive frequency automatically changes to the same
value.
Bandwidth
Specifies the bandwidth of operation. For DVB-T, choose from 5 MHz,
6 MHz, 7 MHz, or 8 MHz
Constellation
DVB-T offers three different modulation schemes: QPSK, 16QAM, and
64QAM.
Lower order modulation formats like QPSK (Quadrature Phase Shift
Keying) do not transmit as much data compared to higher modulation
formats such as 64QAM (Quadrature Amplitude Modulation), but they can
be received when signal strengths are lower.
Note that as the QAM order increases, there is a higher possibility of
introducing data errors since these schemes are less resilient to noise and
interference.
Code Rate
Match the code rate to the requirements of the broadcast network. The
higher the level of error correction that is applied, the greater the level of
supporting error correction data that needs to be transmitted, which
reduces the data rate of the transmission.
For example, if you select 3/4, for every 3 bits of data, you are sending out
4 bits, one of which is for error correction.
Guard Interval
Choose the appropriate guard interval so that distinct transmissions do
not interfere with each other.
In DVB-T, four guard intervals are available: 1/32 provides the lowest
protection and the highest data rate, 1/4 results in the best protection but
the lowest data rate.
FFT/Carriers
Choose the mode of operation, either 2K, 4K or 8K mode.
Use 2K mode for single transmitter operation and for small single
frequency networks with limited transmitter distances.
Use 8K mode both for single transmitter operation and for small and large
single frequency networks.
Table 6: Transmit configuration

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Advanced transmit settings
Setting
Description
Dual Pedestal
Specifies whether you want to use a double-capacity wireless link.
‘Off’ creates a single video link.
‘On’ creates a single video link with double capacity.
‘2-stream’ creates pedestals for two separate video streams.
In ‘BSI control’ mode, the selected setting syncs from the receiver to the
transmitter.
Pre-Distortion
Specifies whether to use pre-distortion to improve the linearity and
efficiency of the transmitter’s amplifier and reduce interference. The
recommended setting is ‘On’. Pre-Distortion is only available for the
Low-Band (1.4GHz or 2GHZ)
Choose ‘Power Save’ to allow the device to ‘sleep’ between periods of
transmission and reception, which lowers power consumption and can
increase battery life.
Pilot Offset
This is an advanced setting used to offset the RF spectrum by one
sub-carrier. Default setting is ‘Off’.
Table 7: Advanced transmit settings
Video source, format, and encoder
Video settings
You need to define the video input source and the settings that you want to use to prepare the video for output.
Setting
Description
SDI Input Enable
SDI Input Enable: Use to enable the input SDI slots when
connecting Mini-Tx UHD to the camera’s SDI port if you are
using SDI as the video source. You must manually enable
these slots depending on the input mode 12G, dual 6G or quad
3G.
Mode: Choose the mode depending on the SDI input- Single
(for 12G), Dual-Link (for dual 6G), Quad-Link (for Quad 3G),
and Multiple (to choose 1,2,3 or 4 inputs).
PoCXP
Defines warning for the power over Coax-Express. When using
external power supply to camera or video source, turn off the
DC power in the Mini Tx UHD.
Table 8: Video settings