Audio A10-TX-US User Manual
A10-TX-US
Digital Transmitter
— User Guide —
A10-TX-US User Guide A10-TX-US User Guide
Copyright / Doc Rev History Info
Model A10-TX-US only. See separate documentation for A10-TX model.
Copyright © 2018 Audio Ltd. All rights reserved. | www.audioltd.com
7 Century Court, Tolpits Lane, Watford WD18 9RS, UK | info@audioltd.com
Revision Date Description
1A Dec 2017 Initial Publication
1B Feb 2018 Added note re: Bluetooth remote range
Overview
The A10 Digital Wireless System meets the demanding requirements of the professional sound
community engaged in lm and television production. It oers superb audio and RF performance.
The digital RF transmission of the A10 system allows the user to operate up to 20 channels in
an 8 MHz TV channel, maximising spectrum eciency without compromising on range, audio
quality or latency.
The A10-TX-US is the U.S.-only version of the transmitter. It incorporates Audio Ltd’s proprietary digital modulation scheme whilst maintaining the high audio quality that Audio Ltd has
become renowned for, and with extremely low end-to-end latency of 2 mS.
The A10-TX-US has an intuitive menu system allowing the user to become familiar with settings
within a few minutes of turning it on.
Key Features
• Low-noise, studio-grade balanced input for microphones and line level signals with analogue
limiter and phantom power.
• Fully digital RF transmission
• Remote controllable over Bluetooth® using the A10-TX-US Remote app for Android and iOS.
Table of Contents
Contents
Table of Contents . . . . . . . . . . . . . . 2
Copyright / Doc Rev History Info . . . . . 2
Overview
Key Features . . . . . . . . . . . . . . . 3
System Quickstart . . . . . . . . . . . . . 4
At the Receiver
At the Transmitter . . . . . . . . . . . . 4
At the Receiver
Connectors, Controls Description
Powering
Main Display
Menu Control and Menu Selections
Main Menu . . . . . . . . . . . . . . . . 7
Audio Setup Menu . . . . . . . . . . . . 8
Settings Menu . . . . . . . . . . . . . . 8
System Menu . . . . . . . . . . . . . . 9
Basic Operation
Frequency Selection . . . . . . . . . . 9
Channel, Sub Channel, Frequency . . 9
. . . . . . . . . . . . . . . . . . 3
. . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . 4
. . . . 5
. . . . . . . . . . . . . . . . . . 6
. . . . . . . . . . . . . . . . 6
. . . 7
. . . . . . . . . . . . . . 9
Audio Input and Control
Lavalier Microphones . . . . . . . . . . 10
Balanced Microphones with Phantom . 10
Line-Level Sources . . . . . . . . . . . 10
Audio Level Control . . . . . . . . . . . 10
Antennas . . . . . . . . . . . . . . . . . 10
Remote Control
Firmware Updates
Specifications
Input Connector Wiring Diagram . . . . 13
Battery Runtime Chart . . . . . . . . . 13
Certifications . . . . . . . . . . . . . . . . 14
FCC Conformity
Minimize RF Exposure . . . . . . . . . . 14
Frequency Tables
X Frequencies (6 MHz Per TV Channel) 15
Y Frequencies (7 MHz Per TV Channel) 16
Z Frequencies (8 MHz Per TV Channel) 17
Channel Assignments by Region . . . . 17
. . . . . . . . . . . . . . . 11
. . . . . . . . . . . . . 12
. . . . . . . . . . . . . . . . 12
. . . . . . . . . . . . . 14
. . . . . . . . . . . . . . 15
. . . . . . . . . 10
• Powered by easy-to-access AA batteries.
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A10-TX-US User Guide A10-TX-US User Guide
System Quickstart
The A10 Digital Wireless System is easy to use. Follow the steps below for basic setup and operation.
At the Receiver
1. Fit the included straight and right-angled antennas to the A10-RX receiver.
2. Connect the receiver to a power source. It will immediately power on.
3. Using the scanning tool in the Selection menu nd an available open frequency. If multiple
wireless systems are in use, make certain to keep frequencies least 400 kHz apart.
4. Connect the audio output from channel 1, channel 2, or both to an audio input on a mixer,
recorder, camera, or PA system.
5. Ensure that the receiver audio output type and level are set based on the input type.
At the Transmitter
1. Attach the straight antenna to the A10-TX-US.
2. Attach an audio source to the 3-pin LEMO input connector.
3. Insert AA batteries into the A10-TX-US battery compartment and power on the unit with the
red On/O button.
Connectors, Controls Description
1
2
3
4
5
11
6
7
8
9
10
4. Set the audio input type to set to match the connected input.
5. Set the transmitting frequency on the A10-TX-US match the frequency set on the A10-RX
receiver channel.
6. Adjust the audio gain according to your environment and source, taking care not to overload
the signal. This is indicated by a red LED.
At the Receiver
1. Conrm that the blue channel power LED is solid blue.
2. Conrm that the RF status LEDs and display indicate good RF strength on both antennas.
3. Conrm that the audio level at the receiver corresponds to the audio connected to the A10-
TX-US input.
4. The system is now ready for use.
Figure 1: A10-TX-US transmitter with open battery compartment
1 - Antenna Socket
SMA connector, 50 ohm, connects to included 1/4-wave whip antenna.
2 - Power LED
Blue LED illuminates when unit is powered
on. Flashes when unit is in sleep mode. LED
can be turned o in the Menu.
3 - Display
OLED screen. Screen automatically turns o
during operation for battery savings.
4 - Left Menu Button
Moves selection in menu to the left, or decrements values.
5 - Power Button
Press to power on the unit. Press and hold to
power down the unit.
12
7 - Input Overload LED
Red LED illuminates when input signal is X
dB below clipping.
8 - Menu Button
Enters the menu selection. Also used to select
options in the menu.
9 - Right Button
Moves menu selection to the right, or increments values.
10 - microSD Card Slot
Used to load rmware updates on the unit.
11 - Battery Tray
Accepts two AA LR6 batteries.
12 - Battery Door Latch
Press both latches to open the battery door.
6 - Audio Input Connector
Balanced LEMO-3 connector. Accepts mul-
tiple audio input types including unbalanced
lavalier, balanced microphone, balanced line.
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