Sound Devices ASTRAL A20-Mini User Manual
Digital wireless mini bodypack transmitter with gainforward, spectraband, and nexlink
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Summary of Contents for Sound Devices ASTRAL A20-Mini
- Page 1 ASTRAL A20-Mini Digital Wireless Mini Bodypack Transmitter with GainForward, SpectraBand, and NexLink User Guide v8.00...
- Page 2 Table of Contents Welcome to the A20-Mini SpectraBand NexLink Wireless Transmitter Control GainForward Interface Description Top and Bottom Panels Front, Left, Right, Back Panels Power Connecting Lavalier Microphones to A20-Mini Tuning the A20-Mini and Receiver Audio Levels - GainForward Recording WAV Files Jamming Timecode File Transfer to a Computer Updating A20-Mini Firmware...
- Page 3 Welcome to the A20-Mini Sound Devices’ first miniature transmitter incorporates state-of-the-art features such as full remote control via the A20-Remote app, long range modulation, GainForward Architecture, SpectraBand’s 470 MHz – 1525 MHz tuning range, internal 32-bit float recording, and more. The A20-Mini is fully compatible with the A20-SuperNexus, A20-Nexus, A20-Nexus Go, A20-RX and the A10-RX.
- Page 4 SpectraBand The A20-Mini introduces SpectraBand, a technology that enables the A20-Mini to tune over a super wide range of 470-1525 MHz. Tuning within this range varies by country. For instance: In the USA, the available frequency ranges are: ● The entire UHF TV band (470-608 MHz) ●...
- Page 5 Interface Description Top and Bottom Panels 1: Battery Power LED Indicates the state of battery life. Green = Good Orange = Marginal, about an hour of battery life remaining. Red = Low, 15-20 minutes of battery life remaining. Flashing Red = Critically low, RF, audio, and recording disabled. Blue = Batteries inserted.
- Page 6 7: Bottom Panel Charge/Pair/Record/Media/Timecode LED LED indicates charging status, timecode sync, Bluetooth pairing, recording, and media activity. Positioned on the bottom of the A20-Mini to make it easily visible when slotted into the optional PowerStation-8M. Solid Orange = Charging Solid Green = Charging complete Off = Not charging Solid Red = Recording Flashing Red = Recording stopped due to full media or recording error...
- Page 7 Slide left to unlock the battery door. 3:Battery Compartment Accepts either 3x AAA Lithium batteries or one rechargeable Sony NP-BX1 Li-Ion battery. Sound Devices recommends using genuine Sony NP-BX1 or Energizer AAA Lithium primary batteries for best performance. Alkaline and NiMH are not recommended because of compromised run times.
- Page 8 Power The A20-Mini powers via USB-C, 3x Energizer AAA Lithium primary batteries, one Sony NP-BX1 Li-Ion battery, or two Sony NP-BX1 Li-Ion batteries (when fitted with the A20-BatteryDoubler accessory). Opening the Battery Door To open the A20-Mini battery door: Slide the door latch to the left to unlock the battery door. Lift the battery door using the indented space on the bottom right-hand side of the battery door.
- Page 9 selected, removing an A20-Mini from the PowerStation-8M immediately powers on the transmitter. This feature is turned on or off in the A20-Remote application. See A20-Remote for more details. Auto-Power with Lemo Connection When the ‘Auto power with Lemo connection’ feature is enabled using A20-Remote or an Astral Receiver via NexLink, connecting a lav mic to the Lemo connector automatically powers on the transmitter.
- Page 10 The A20-Mini transmits on frequencies ranging from 470 MHz – 1525 MHz. The frequencies available are determined by geographic location and whether you have entered a unique license code issued by Sound Devices to unlock the use of restricted frequencies.
- Page 11 Audio/LTC LED flashes blue on the 00 frame crossing. Timecode is output from the USB-C using the Sound Devices XL-TC-USBC-LEMO, so that you can verify the A20-Mini timecode is in sync with the LTC source. The Audio/LTC LED stops flashing blue when USB-C is disconnected.
- Page 12 When the A20-Mini is powered off, the Audio/LTC LED and the Charge & Timecode LED flash blue on the 00 frame crossing to indicate timecode is being held. The A20-Mini can also receive and jam timecode while connected to the optional PowerStation-8M via USB-C. See PowerStation-8M for more details.
- Page 13 SD-Utility Sound Devices SD-Utility is a companion application for MacOS and Windows that supports Sound Devices wireless products. This application can be used to process files recorded by A20 transmitters to be more suited to the given workflow. A20 transmitter 32-bit float, 48 kHz, monophonic WAV, 2ch polyphonic WAV, and RF64 WAV files can be imported, renamed, snipped by timecode values, converted to 24 bit, conformed to a CSV Sound Report, exported as monophonic or polyphonic WAV, and more.
- Page 14 Accessories Included The A20-Mini includes the following accessories. ● Antenna set (1 straight 470-548 MHz, 1 straight 548-638 MHz, 1 straight uncut, 3 antenna caps) ● A20-Mini Holster A20-Mini Holster The A20-Mini ships with an easy-to-assemble holster. The A20-Mini can be inserted with the antenna and lavalier microphone coming out of the top or bottom of the holster.
- Page 15 Optional A20-BatteryDoubler The A20-BatteryDoubler dual-battery adapter for the A20-Mini is an optional accessory that doubles the A20-Minis run time by using two NP-BX1 batteries. With the BatteryDoubler fitted, the A20-Mini's height and width are unchanged; only its depth is increased. Both batteries can be charged simultaneously when the A20-Mini is connected to a USB-C power source.
- Page 16 Powering from the A20-BatteryDoubler To power the A20-Mini using two Sony NP-BX1 Li-Ion batteries: Open the A20-BatteryDoubler door. Insert one Sony NP-BX1 Li-Ion into the A20-Mini battery compartment, taking care to place the batteries in the correct orientation. Insert the second Sony NP-BX1 battery into the A20-BatteryDoubler door so that the NP-BX1 battery terminals mate with the BatteryDoubler’s contact pins.
- Page 17 Insert the A20-Mini into an enabled charging bay of the PowerStation-8M. The A20-Mini slides into a charging bay with the antenna-side first, the antenna may be left attached. Sound Devices recommends disconnecting lavalier microphones before inserting the A20-Mini into the charging bay.
- Page 18 Removing A20-Mini from PowerStation-8M with the A20-Mini Extraction Tool Align the Sound Devices logos of the Extraction tool and the A20-Mini battery door, then slide Extraction tool onto the A20-Mini until you hear a click. Pull the A20-Mini out of the slot. Pinch the handle to release the A20-Mini from the Extraction tool.
- Page 19 A20-Mini Specifications Specifications are subject to change without prior notice. For the latest information available on all Sound Devices products, visit our website: www.sounddevices.com. Frequency Range ● 470 to 1525 MHz ● Transmitters are tunable in 25 kHz steps ●...
- Page 20 Remote Control ● A20-Remote Android, iOS, and iPad app via Bluetooth 5.2 LE ● A20-Nexus and A20-Nexus Go via NexLink Recording Media ● Internal 64 GB ● 10% over-provisioned for optimum performance Recording File Format ● 32 Bit Float, 48 kHz, Monophonic ●...
- Page 21 Sound Devices encourages all wireless operators to obtain a Part 74 license, and specifically to make sure applicable parts of the 600 MHz and 950 MHz range are included with their license application. This can help show an operator is aware of the available spectrum and is utilizing it responsibly.
- Page 22 The A20-Mini ships with an antenna set with three antennas (1 straight 470-548 MHz, 1 straight 548-638 MHz, 1 straight uncut, set of antenna caps). Sound Devices offers additional pre-cut and uncut antennas as available options. Attach antennas with a length specific to the frequency in use. Using the wrong length of antenna reduces RF range.
- Page 23 Warranty Sound Devices, LLC warrants the items listed above against defects in materials and workmanship for a period of ONE (1) year from date of original retail purchase. Users who register their product directly with Sound Devices Technical Support using the online form or by phone, will receive an additional ONE (1) year of warranty coverage, extending the complete warranty period to TWO (2) years from the date of original retail purchase.
- Page 24 Copyright© 2022 Sound Devices, LLC. All rights reserved. This product is subject to the terms and conditions of a software license agreement provided with the product, and may be used in accordance with the license agreement. This document is protected under copyright law.
- Page 25 Ce transmetteur est fourni avec les types d’antenne unique ci-dessus; pour remplacer une antenne perdue, endommagée ou défectueuse, veuillez contacter Sound Devices, LLC. # Pièce Manufacturier...
- Page 26 WEEE Statement If you wish to discard a Sound Devices product in Europe, contact Sound Devices (England) for further information. Battery Advisory Incorrect use of batteries poses a danger of explosion. Replace only with the same or equivalent type. Properly recycle batteries. Do not crush, disassemble, incinerate,dispose in a fire or expose batteries to high temperatures.
- Page 27 Declaration of Conformity Manufacturer’s Name: Sound Devices, LLC Manufacturer’s Address: E7556 State Road 23 and 33 Reedsburg, WI 53959 USA We, Sound Devices LLC, declare under our sole responsibility that the product Product Name: A20-Mini Model Number: 9295 Description: Digital Wireless Microphone Transmitter...
- Page 28 Post Office Box 576 E7556 State Rd. 23 and 33 Reedsburg, Wisconsin 53959 USA support@sounddevices.com +1608.524.0625 main 800.505.0625 toll free (U.S. only) www.sounddevices.com A20-Mini User Guide...
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