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A20-Nexus
8-, 12-, and 16-Channel, True-Diversity Receiver
with SpectraBand Technology
User Guide v1.50
Table of Contents
Welcome to the A20-Nexus 3
Key Features 3
SpectraBand 4
Digital Wireless Modulation 4
NexLink Wireless Transmitter Control 4
GainForward 4
Architectural Overview 6
Panel Views 7
Typical Setups 11
Quick Start 15
Powering 18
Navigating the A20-Nexus User Interface 20
RX Views 22
Menus 30
RTSA (Real Time Spectrum Analyzer) 32
Scan Mode 35
AutoAssign 35
TX List 37
RF Menu 39
Antenna RF Overload Indication 41
Audio Outputs 41
Timecode 44
Networking 45
System Menu 47
Quick Setup Menu 50
Nexus Web App 52
Updating Firmware 56
Channel Expansion Licenses 56
Accessories 57
A20-QuickDock for 8-Series 57
A20-Monarch Antenna 62
A20-Shelf 62
A20-2.4G Ant+Mount 62
NexLink Status Alerts 64
Frequency Band Restrictions 65
Connector Pin Assignments 66
A20-Nexus Specifications 68
A20-Monarch Specifications 70
Note on RF Interference 71
Servicing the A20-Nexus 71
Warranty 71
Legal Notices 72
Declaration of Conformity 75
A20-Nexus User Guide
2
Welcome to the A20-Nexus
The A20-Nexus is an ultra-high performance, 8-, 12-, and 16-channel wireless microphone receiver in a compact ½-rack wide
chassis. It features 8 independent, true-diversity channels which can be expanded to 12 or 16 true-diversity channels via software
license. The A20-Nexus features NexLink, an innovative concept in wireless microphone receivers: full remote control of microphone
transmitters via an integrated, long distance RF link.
The A20-Nexus can be mounted in a standard 19-inch rack or easily placed remotely near the microphone transmitters due to its
ability to be powered by Power-over-Ethernet (PoE+), its Dante audio-over-IP, and built-in web server for control via phone, tablet, or
computer.
Additionally, the A20-Nexus can be docked to Sound Devices 833, 888, or Scorpio mixer-recorders using the A20-QuickDock
accessory, which provides convenient power, audio, and timecode connections with no additional cables. This accessory allows the
A20-Nexus to connect and disconnect from the 833, 888, or Scorpio in seconds with no tools, and be remote mounted when
desired.
Key Features
● 8-channel ultra-high-performance, true-diversity receivers in a ½ rack size (8.0” x 6.6” x 1.6”).
● Expandable to 12 or 16 channels via 4-channel expansion licenses.
● 169 MHz – 1525 MHz tuning range via SpectraBand Technology.
● NexLink: integrated, long distance remote control of all wireless transmitters inc. group power on/off.
● Integrated Real Time Spectrum Analyzer (RTSA) and scanning for intuitive frequency coordination.
● AutoAssign: automatic deployment of clean frequencies in seconds.
● Dante audio-over-IP of RF receiver audio.
● Flexible powering: via PoE+, DC input, 8-Series, or AC mains (with optional adapter).
● Web App control from browser on any computer, smartphone or tablet.
● Full remote operation capability: Power via PoE, audio via Dante, control via Web App.
● Dual DB-25 connectors for 16 channels of mic, line, or AES outputs.
● Convert 16 channels of Dante to analog & AES on DB25 connectors for sending IFB, VOG & more from mixer to set.
● Wide, 6.2” color OLED array with touch for control and monitoring.
● Optical Fiber Network option via SFP slot. SFP accepts a wide variety of modular network transceivers.
● A20-QuickDock allows docking and undocking in seconds from 8-Series mixer-recorders with no tools.
● Supports GainForward Architecture: No gain setting on the A20 transmitter. Adjust gain at the receiver or mixer.
● 100% digital long-range modulation delivers the longest transmission distance of any digital system on the market.
● RF SAW filters for excellent rejection of interference from nearby IFB or camera hop transmitters.
● Excellent audio quality, full 10 Hz – 20 kHz audio bandwidth.
● BNC timecode input for auto timecode sync of transmitters over NexLink
● Front panel and rear panel BNC antenna inputs. Compatible with passive, bias-powered, and smart antennas.
● Cascade out option on rear BNCs for cascading multiple A20-Nexus units.
● Front-panel headphone output.
● USB-A port for thumb drives, keyboards, transmitter pairing, and timecode syncing. Supports USB hubs.
Our friendly and knowledgeable support team, based in the USA and the UK, is here for all your questions and comments.
A20-Nexus User Guide
3

Produktspecifikationer

Varumärke: Sound Devices
Kategori: mottagare
Modell: A20-Nexus

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