Shure ADX3 Plug-On Transmitter

ADX3 Plug-On Transmitter Overview

The Shure Axient Digital ADX series transmitters deliver impeccable audio quality and RF performance, equipped with ShowLink® remote control for real-time parameter adjustments and interference avoidance. The Shure ADX3 plug-on transmitter transforms any microphone into an advanced Axient Digital ADX Series wireless microphone, featuring wide-tuning, High Density (HD) mode, encryption, and advanced rechargeability. The ADX3 boasts a patented locking mechanism for a secure, wobble-free connection and supports both conventional AA and Shure SB900-series rechargeable batteries. It is housed in a lightweight, rugged, metal chassis designed to resist sweat, moisture, and debris.

Important Safety Information

Explanation of Symbols:

• Caution: risk of electric shock (French: Attention : risque de choc électrique; German: Vorsicht: Stromschlagrisiko; Spanish: Precaución: riesgo de descarga eléctrica; Italian: Attenzione: rischio di scosse elettriche; Portuguese: Aviso: risco de choque elétrico; Russian: Внимание: риск поражения электрическим током; Dutch: Waarschuwing: risico op elektrische schok; Japanese: 警告:感電のおそれ; Korean: 주의: 전기 충격 위험; Simplified Chinese: 小心电击; Traditional Chinese: 注意:存在觸點風險; Indonesian: Awas: risiko sengatan listrik; Arabic: تنبيه خطر الصدمة الكهربية)
• Caution: risk of danger (French: Attention : risque de danger; German: Vorsicht: Gefährdungsrisiko; Spanish: Precaución: riesgo de peligro; Italian: Attenzione: rischio di pericolo; Portuguese: Aviso: risco de perigo; Russian: опасность; Dutch: risico op gevaar; Japanese: 危険のおそれ; Korean: 위험; Simplified Chinese: 小心危险; Traditional Chinese: 存在危險; Indonesian: risiko bahaya; Arabic: مخاطر الخطر)
• Direct current (French: Courant direct; German: Gleichstrom; Spanish: Corriente directa; Italian: Corrente continua; Portuguese: Corrente direta; Russian: Постоянный ток; Dutch: Gelijkstroom; Simplified Chinese: 直流; Korean: 직류; Traditional Chinese: 直流; Indonesian: Arus searah; Arabic: تيار مباشر)
• Alternating current (French: Courant alternatif; German: Wechselstrom; Spanish: Corriente alterna; Italian: Corrente alternata; Portuguese: Corrente alternada; Russian: Переменный ток; Dutch: Wisselstroom; Simplified Chinese: 交流; Korean: 교류; Traditional Chinese: 交流; Indonesian: Arus bolak-balik; Arabic: تيار متناوب)
• On (Supply) (French: Marche (alimentation); German: Ein (Versorgung); Spanish: Encendido (alimentación); Italian: Alimentazione attiva; Portuguese: Ligado (Fonte); Russian: Вкл. (питание); Dutch: Aan (voeding); Japanese: オン(供給); Korean: 켜짐(공급장치); Simplified Chinese: 打开(供电); Traditional Chinese: 開啟(電源); Indonesian: Hidup (Catu); Arabic: تشغيل (إمداد))
• Equipment protected throughout by DOUBLE INSULATION or REINFORCED INSULATION (French: Équipement intégralement protégé par une DOUBLE ISOLATION ou une ISOLATION RENFORCÉE; German: Geräte durchgängig durch DOPPELTE ISOLIERUNG oder VERSTÄRKTE ISOLIERUNG geschützt; Spanish: El equipo está protegido con AISLAMIENTO DOBLE o AISLAMIENTO REFORZADO; Italian: Apparecchio interamente protetto tramite ISOLAMENTO DOPPIO o ISOLAMENTO RINFORZATO; Portuguese: Equipamento protegido por DUPLA ISOLAÇÃO ou ISOLAÇÃO REFORÇADA; Russian: Оборудование защищено с использованием ДВОЙНОЙ ИЗОЛЯЦИИ или УСИЛЕННОЙ ИЗОЛЯЦИИ; Dutch: Apparatuur volledig beschermt door DUBBELE ISOLATIE of VERSTERKTE ISOLATIE; Japanese: 二重絶縁または強化絶縁により常に保護されている機器; Korean: 이중 절연 또는 강화 절연으로 완전히 보호된 장비; Simplified Chinese: 设备始终有双绝缘或加强绝缘保护; Traditional Chinese: 透過雙絕緣或加強絕緣完全保護設備; Indonesian: Peralatan dilindungi seluruhnya dengan ISOLASI GANDA atau ISOLASI DIPERKUAT; Arabic: الجهاز محمي من خلال عزل مزدوج أو عزل مقوى)
• Stand-by (French: Veille; Spanish: En espera; Italian: Standby; Portuguese: Em espera; Russian: Режим ожидания; Dutch: Stand-by; Japanese: スタンバイ; Korean: 대기; Simplified Chinese: 待机; Traditional Chinese: 待機; Indonesian: Siaga; Arabic: وضع الاستعداد)
• Equipment should not be disposed of in the normal waste stream

IMPORTANT SAFETY INSTRUCTIONS

1. READ these instructions.
2. KEEP these instructions.
3. HEED all warnings.
4. FOLLOW all instructions.
5. DO NOT use this apparatus near water.
6. CLEAN ONLY with dry cloth.
7. DO NOT block any ventilation openings. Allow sufficient distances for adequate ventilation and install in accordance with the manufacturer's instructions.
8. DO NOT install near any heat sources such as open flames, radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not place any open flame sources on the product.
9. DO NOT defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wider blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. PROTECT the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
11. ONLY USE attachments/accessories specified by the manufacturer.
12. USE only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. UNPLUG this apparatus during lightning storms or when unused for long periods of time.
14. REFER all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
15. DO NOT expose the apparatus to dripping and splashing. DO NOT put objects filled with liquids, such as vases, on the apparatus.
16. The MAINS plug or an appliance coupler shall remain readily operable.
17. The airborne noise of the Apparatus does not exceed 70dB (A).
18. Apparatus with CLASS I construction shall be connected to a MAINS socket outlet with a protective earthing connection.
19. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
20. Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.
21. Operate this product within its specified operating temperature range.

WARNING: Voltages in this equipment are hazardous to life. No user-serviceable parts inside. Refer all servicing to qualified service personnel. The safety certifications do not apply when the operating voltage is changed from the factory setting.

WARNING

• Battery packs may explode or release toxic materials. Risk of fire or burns. Do not open, crush, modify, disassemble, heat above 140°F (60°C), or incinerate.
• Follow instructions from manufacturer
• Only use Shure charger to recharge Shure rechargeable batteries
• WARNING: Danger of explosion if battery incorrectly replaced. Replace only with same or equivalent type.
• Never put batteries in mouth. If swallowed, contact your physician or local poison control center
• Do not short circuit; may cause burns or catch fire
• Do not charge or use battery packs other than Shure rechargeable batteries
• Dispose of battery packs properly. Check with local vendor for proper disposal of used battery packs.
• Batteries (battery pack or batteries installed) shall not be exposed to excessive heat such as sunshine, fire or the like
• Do not immerse the battery in liquid such as water, beverages, or other fluids.
• Do not attach or insert battery with polarity reversed.
• Keep away from small children.
• Do not use abnormal batteries.
• Pack the battery securely for transport.

WARNING

• If water or other foreign objects enter the inside of the device, fire or electric shock may result.
• Do not attempt to modify this product. Doing so could result in personal injury and/or product failure.

CAUTION

• Never disassemble or modify the device, as failures may result.
• Do not subject to extreme force and do not pull on the cable or failures may result.
• Keep the microphone dry and avoid exposure to extreme temperatures and humidity.

Note: Use only with the included power supply, batteries, or a Shure-approved equivalent.

Features

Performance

• 20 Hz to 20 kHz range with flat frequency response
• Automatic input staging optimizes gain setting
• AES 256-bit encryption-enabled for secure transmission
• >120 dB dynamic range
• 100 meter (300 feet) line-of-sight operating range
• Diversity ShowLink-enabled for remote transmitter control and automatic interference avoidance
• Selectable modulation modes optimize performance for spectral efficiency: Standard - optimal coverage, low latency; High density - dramatic increase in max system channel count
• Built-in tone generator and RF markers to facilitate walk-testing
• Switchable Power Levels = 2/10/35 mW (region dependent)

Design

• Locking XLR connector
• OLED display with easy-to-navigate menu and controls
• Rugged metal construction
• Menu and power lockout

Power

• Over 6 hours continuous use with Shure rechargeable battery
• Shure lithium-ion rechargeable battery provides extended battery life, precision metering, and zero memory effect
• External power and battery charging over USB-C

ADX3 Transmitter Overview

1. Display: View menu screens and settings.
2. Infrared (IR) port: Align with the receiver IR port during an IR Sync for automated transmitter tuning and setup.
3. Control buttons: Use to navigate through parameter menus and to change settings.
4. Power switch: Hold the X button to power the unit on or off.
5. Enter button: Press to enter menu screens and confirm menu changes.

Components

• Power LED: Green = Unit is powered on; Red = Low battery, or battery error.
• Audio LED: Red, yellow, and green LEDs indicate average and peak audio levels. The LED turns red when the limiter is engaged.
• USB-C port: Supplies power or charges Shure rechargeable battery. LED indicates charging status when connected to a power supply (Red = Charging, Green = Full charge, Yellow = Not charging).
• Battery compartment: Requires two AA batteries or Shure rechargeable battery.
• AA battery adapter: Use to secure AA batteries. Remove when using a Shure rechargeable battery.
• XLR connector: Connection point for wired microphones, cables, and boom poles.
• Locking ring: To release the XLR connector, turn the ring counterclockwise and push in.
• Pouch: Provides additional grip and protection for the transmitter.
• Belt clip: Holds transmitter and microphone securely for hands-free carrying.

Setup

1. Slide the tab on the side of the transmitter to open the battery door.
2. Install the batteries:
   • AA batteries: Place batteries (note polarity markings) and AA adapter as shown, then close the door.
   • Shure rechargeable battery: Place battery as shown (note polarity markings). Remove the AA adapter and close the door to secure the battery.

Note: If using AA batteries, set the battery type to ensure the transmitter's battery status indicator is accurate.

3. Press and hold X to turn on the transmitter.
4. Select the appropriate input pad or boost to avoid overloading the audio input or add boost to low-output sources: Audio > Pad / Boost
   • -12 dB: Use with high output sources, such as line levels and point-to-point applications.
   • Off (default): Use with typical microphones.
   • +12 dB: Use with low output sources.
5. Plug the transmitter into an XLR microphone or the output of an audio device.

Transmitter Controls

Use the controls to navigate menus and update settings.

Shure Rechargeable Battery

Shure SB900B-series lithium-ion batteries offer a rechargeable option for powering the transmitters. Batteries charge to 50% capacity in 1 hour and reach full charge within 3 hours. Single chargers and multiple bay chargers are available. Batteries can also be charged while inside the ADX3 if connected to power over USB.

Caution: Only charge Shure rechargeable batteries with a Shure battery charger or while inserted into an ADX3 connected to power over USB.

Checking Battery Info

When using a Shure rechargeable battery, the receiver and transmitter home screens display the number of hours and minutes remaining. Detailed information is available in the transmitter's Battery menu (Utilities > Battery):

• Battery: Chemistry type (Shure, Alkaline, Lithium, NiMH).
• Battery Time to Full: Time remaining until fully charged (appears only when externally charging).
• Battery Life: Indicates remaining battery runtime.
• Charge: Percentage of charge capacity.
• Health: Percentage of current battery health.
• Cycle Count: Total number of charging cycles.
• Temperature: Battery temperature in Celsius and Fahrenheit.

Shure SB900B-Series Runtime

Note: Phantom power, RF output, and the impedance of the connecting device can impact battery life.

Important Tips for Care and Storage of Shure Rechargeable Batteries

• Always store batteries and transmitters at room temperature.
• For long-term storage, charge batteries to approximately 40% capacity.
• Periodically clean battery contacts with alcohol for ideal contact.
• During storage, check batteries every 6 months and recharge to 40% capacity as needed.

For additional rechargeable battery information, visit www.shure.com.

AA Batteries and Transmitter Runtime

Transmitters are compatible with the following AA battery types: Alkaline, Nickel Metal Hydride (NiMH), Lithium Primary.

A 5-segment battery indicator shows the charge level. The following table shows approximate remaining transmitter runtime:

Alkaline Batteries

Setting the AA Battery Type

To ensure accurate display of transmitter runtime, set the battery type to match the installed battery.

1. Navigate to Utilities and select Battery.
2. Use the ∧ / V buttons to select the installed battery type:
   • Alkaline = Alkaline
   • NiMH = Nickel Metal Hydride
   • Lithium = Lithium Primary
3. Press O to save.

Power Over USB

When operated with AA batteries, or without batteries, the ADX3 transmitter can be powered by connecting the USB-C port on the bottom of the transmitter to a suitable power source. When a Shure rechargeable battery is inserted, the USB connection can power the transmitter while simultaneously charging the battery.

Menu Parameters

The Main menu organizes parameters into three categories: Radio, Audio, and Utilities.

Tips for Editing Menu Parameters

• To access menu options from the home screen, press O. Use the arrow buttons to access additional menus and parameters.
• A menu parameter will blink when editing is enabled.
• Use the arrow buttons to increase, decrease, or change a parameter.
• Press O to save a menu change.
• Press X to exit a menu without saving a change.

Menu Map

The menu structure is organized as follows:

• Main Menu
  • Radio: Freq, Power, Output
  • Audio: Offset, Mute, Tone Gen
  • Utilities: Device ID, Locks, Link Info, SL Test, Marker, Battery, Identify, Talk Sw, About, Reset All

Menu Parameter Descriptions

Radio Menu

• Freq: Press Enter to edit group (G:) channel (C:) or frequency (MHz). Use arrow buttons to adjust. Press O once to edit the first 3 digits of frequency, or twice for the last 3 digits.
• Power: Higher RF power settings extend transmitter range but decrease battery runtime.
• Output: Sets RF output to On (RF signal active) or Mute (RF signal inactive). Turning the transmitter off/on or replacing the battery restores Output to On.

Audio Menu

• Offset: Balances mic levels when using multiple transmitters for frequency diversity or assigning to receiver slots. Adjustment range: -12 dB to +21 dB.
• Mute: When enabled, the power switch acts as a mute switch for audio (Power switch on: audio signal on; Power switch off: audio signal muted).
• Tone Gen: Generates a continuous test tone. Frequency can be set to 400 Hz or 1000 Hz. Level is adjustable from -60 dB to 0 dB. Tip: Start with level at -60 dB to avoid overloading speakers/headphones.

Utilities Menu

• Device ID: Assign a device ID of up to 9 letters or numbers.
• Locks: Locks transmitter controls and power switch. Options: None (unlocked), Power (power switch locked), Menu (menu parameters locked), All (power switch and menu parameters locked).
• Link Info: Displays link status between transmitter and receiver (Not Linked, Linked, Unlinked). Select 'Unlink?' to free the transmitter from the receiver link.
• SL Test: ShowLink test tool to measure ShowLink coverage boundaries.
• Marker: When enabled, press Enter to drop a marker in Wireless Workbench.
• Battery: Displays battery information: Battery Life, Charge (%), Health (%), Cycle Count, Temperature.
• Talk Sw: Press ENTER to add control from a talk switch. Press the talk switch button twice to complete the link.
• Identify: When enabled, flashes the transmitter icon in Wireless Workbench Inventory or Monitor tabs.
• About: Displays transmitter information: Model, Band, FW Version, HW Version, Serial Num.
• Reset All: Restores all transmitter parameters to factory settings.

Home Screen Display

The home screen shows transmitter information and status. Four pieces of information can be displayed. Use arrow buttons to select:

• Name
• Frequency Setting
• Group (G) and Channel (C)
• Device ID

Icons indicate transmitter settings:

• Battery icon: Battery runtime in hours/minutes or bar display.
• ? (Key icon): Displayed when encryption is enabled.
• ? (Lock icon): Displayed when controls are locked. Icon flashes if you attempt to access a locked control.
• STD: Standard Transmission Mode.
• HD: High Density Transmission Mode.

Locking the Interface

Lock interface controls to prevent accidental or unauthorized changes. The lock icon appears on the home screen when a lock is enabled.

1. From the Utilities menu, navigate to Locks and select a lock option:
   • None: Controls are unlocked.
   • Power: Device remains on until locks are off or power runs out. Holding X will not turn the device off.
   • Menu: Menu parameters are locked.
   • All: Power and menu parameters are locked.
2. Press O to save.

Tip: To quickly unlock the transmitter menu, press O and select None.

IR Sync

Use IR Sync to form an audio channel between the transmitter and receiver. Note: The receiver band must match the transmitter band.

1. Select a receiver channel.
2. Tune the channel to an available frequency using group scan or manually to an open frequency.
3. Power on the transmitter.
4. Press the SYNC button on the receiver.
5. Align the IR windows between the transmitter and receiver so the IR LED illuminates red. When complete, 'Sync Success!' appears. The transmitter and receiver are now tuned to the same frequency.

Diagram Description: A diagram shows two devices (transmitter and receiver) with IR ports aligned within 15 cm (6 in.). An arrow indicates the alignment. A button labeled 'SYNC' is visible on the receiver.

Note: Changes to encryption status require a sync to send settings to the transmitter. New encryption keys are generated on every IR sync.

Setting the Frequency Manually

The transmitter can be manually tuned to a specific group, channel, or frequency.

1. Navigate to the Radio menu and select Freq.
2. Scroll to select G: and C: to edit the group and channel, or select the frequency parameter (MHz). When editing frequency, press O once to edit the first 3 digits, or twice to edit the last 3 digits.
3. Use the ∧ / V buttons to adjust the group, channel, or frequency.
4. Press O to save, then press X when finished.

Example display: Freq G: 1 C:1 470.700 MHz

RF Mute

RF mute prevents audio transmission by suppressing the RF signal while the transmitter remains powered on. The home screen displays 'RF Muted' in this mode.

1. From the Radio menu, navigate to Output.
2. Choose one of the following options:
   • On: RF signal is active
   • Mute: RF signal is disabled
3. Press O to save.

Note: Turning the transmitter off/on or replacing the battery restores Output to On.

Safe Start

Power on in safe start mode to prevent interference with other devices. Hold the ∧ button while powering on your device until the Safe Start menu appears.

Safe Start menu options:

• RF: Mute or On
• Locks: None, Pwr, Menu, All
• Phantom: Off, +12V, +48V

Use the navigation buttons to make changes. Tip: To exit the Safe Start menu, push X.

Note: Previous settings for locks, RF, and phantom power are retained when the transmitter is powered on in safe start mode.

Input Overload

The 'Tx Overload' message appears when the audio input experiences a high-level signal. The audio LED turns red as an additional indicator of an overload. Reduce the input signal or enable the input pad to remove the overload condition.

Tip: To enable the input pad, navigate to Audio > Pad and select -12 dB.

Example display: Shure Tx Overload 7:45

Tone Generator

The transmitter has an internal tone generator that produces a continuous audio signal, useful for sound checks or troubleshooting the audio signal chain. The tone level is adjustable from -60 dB to 0 dB, and frequency can be set to 400 Hz or 1000 Hz.

Tip: Always start with the level set to -60 dB to avoid overloading speakers or headphones.

1. From the Audio menu, select Tone Gen.
2. Set the frequency to 400 Hz or 1000 Hz.
3. Select Level and use the arrow buttons to adjust the value between -60 dB and 0 dB.

Turn off the tone by selecting Off from the menu or by cycling the transmitter power.

Example display: Tone Gen Tone: 400Hz Level: -60db

Matching Audio Levels with Offset

When linking multiple transmitters to a receiver, differences in volume levels may occur. Use the Offset function to match audio levels and eliminate audible differences. If using a single transmitter, set Offset to 0 dB.

1. Turn on the first transmitter and perform a sound check. Turn off the transmitter when finished.
2. Turn on the second transmitter and perform a sound check. Repeat for any additional transmitters.
3. If an audible difference exists, navigate to the Offset menu (Audio > Offset) to increase or decrease the Offset in realtime to match audio levels.

Example display: Audio Offset: +1dB

Updating Firmware

Firmware is embedded software controlling functionality. New versions are developed to incorporate features and enhancements. Upload and install new firmware versions using the Shure Update Utility, available for download from http://www.shure.com/.

Firmware Versioning

When updating, first download firmware to the receiver, then update transmitters to the same version for consistent operation. Shure device firmware uses the format: MAJOR.MINOR.PATCH.BUILD (e.g., 1.2.21.1). All devices on the network must have the same MAJOR and MINOR firmware version numbers (e.g., 1.2.x).

Updating the Transmitter

1. Download the firmware to the receiver.
2. Access the menu from the receiver: Device Settings > Tx Firmware Update.
3. Align the IR ports between the transmitter and receiver for the entire download (can take 50 seconds or longer). Tip: The red alignment LED turns on when alignment is correct.
4. Press ENTER on the receiver to begin the download. The receiver will display the update progress as a percentage.

Troubleshooting

Power

Ensure the receiver and transmitter are receiving sufficient voltage. Check battery indicators and replace batteries if necessary.

Gain

Adjust system gain on the receiver front. Ensure the output level on the back corresponds to the mic/line input setting of the mixing console, amplifier, or DSP.

Cables

Check that all cables and connectors are working correctly.

Interface Locks

The transmitter and receiver can be locked to prevent accidental or unauthorized changes. A locked feature or button will produce the 'Locked' screen on the LCD panel or the lock icon will flash on a transmitter.

Encryption Mismatch

Re-sync all receivers and transmitters after enabling or disabling encryption.

Firmware Mismatch

Paired transmitters and receivers must have the same firmware version installed for consistent operation. See Firmware topic for update procedure.

Tx Battery Hot

If the transmitter battery does not cool off, the transmitter will shut down. Let the device cool down and then consider swapping the transmitter battery. Identify and operate the transmitter away from external heat sources.

Radio Frequency (RF)

RF LEDs

• If neither blue RF Diversity LED is illuminated, the receiver is not detecting a transmitter.
• Orange RF Signal Strength LEDs indicate RF power received, which could be from the transmitter or an interfering source. If more than two orange LEDs remain illuminated with the transmitter off, the channel may have interference; try a different channel.
• Red RF LED indicates RF overload, which can cause interference. If experiencing overload, turn off the receiver to see if it is causing interference with other components.
• The numerical channel select button also turns red to indicate interference:
  • Dim red = Channel not selected, experiencing interference.
  • Bright red = Channel selected, experiencing interference.

Compatibility

• Perform a Scan and Sync to ensure the transmitter and receiver are set to the same group and channel.
• Check the band label on the transmitter and ensure the receiver is set to the same band.

Reducing Interference

• Perform a group or channel scan to find the best open frequency. Perform a sync to transfer the setting to the transmitter.
• For multiple systems, ensure all systems are set to channels in the same group (systems in different bands do not need to be in the same group).
• Maintain line of sight between transmitter and receiver antennas.
• Move or point receiver antennas away from metal objects or sources of RF interference (e.g., LED walls, computers, digital effects, network switches, network cables, PSM wireless systems).
• Eliminate RF overload (see below).

Increasing Range

If the transmitter is more than 6 to 60 m (20 to 200 ft) from the receiver antenna, try one of the following:

• Reduce interference (see above).
• Increase transmitter RF power level.
• Use Normal mode instead of High Density mode.
• Use an active directional antenna, antenna distribution system, or other antenna accessory.

Eliminating RF Overload

If the red RF LED on a receiver is lit, try the following:

• Reduce the transmitter RF power level.
• Move the transmitter further away from the receiver (at least 6 m / 20 ft).
• If using active antennas, reduce antenna or amplifier gain.
• Use omnidirectional antennas.

Antenna Faults

The Antenna Fault red LED indicates a short circuit or excessive load at an antenna port.

• Check antennas and cables for damage.
• Ensure antenna ports are not overloaded.
• Check antenna bias voltage setting. Turn off voltage if using passive antennas.

Clean Battery Contacts

Clean battery contacts with an electrical contact cleaner designed for gold contacts and safe on plastics.

Included Components

Contact Customer Support

Didn't find what you need? Contact our customer support to get help.

Specifications

• Mic Offset Range: -12 to 21 dB (in 1 dB steps)
• Battery Type: Shure SB900B-series Rechargeable Li-Ion or LR6 AA batteries 1.5 V
• Battery Runtime @ 10 mW:
  • Shure SB900B or SB900B-A: > 6 hours
  • Alkaline: > 5 hours
• Note: Phantom power, RF output, and the impedance of the connecting device can impact battery life.
• Dimensions: 126 mm x 44.5 mm x 44.5 mm (5.0in. x 1.8in. x 1.8 in.) H x W x D
• Weight:
  • Without Battery: 240 g (8.0 oz.)
  • With AA batteries: 263 g
  • With Shure rechargeable battery: 280 g
• Housing: Cast Metal
• Operating Temperature Range: -10°C (-14°F) to 50°C (122°F)
• Note: Battery characteristics may limit this range.
• Storage Temperature Range: -40°C (-40°F) to 74°C (165°F)
• Note: Battery characteristics may limit this range.
• Audio Input:
  • Connector: 3-pin female XLR
  • Configuration: balanced
  • Impedance:
    • Pad-12 dB: 26.64 kΩ
    • 0 dB: 6.64 kΩ
    • Boost12 dB: 6.64 kΩ
• Maximum Input Level: 1 kHz at 1% THD
  • Pad-12 dB: 21 dBV
  • 0 dB: 9 dBV
  • Boost12 dB: -3 dBV
• Preamplifier Equivalent Input Noise (EIN): System Gain Setting ≥ +20: -115 dBV, A-weighted, typical
• Phantom Power: +48 V(7 mA maximum), +12 V(15 mA maximum)
• High Pass Filter: Two-pole (12 dB per octave), cut off frequency selectable from 40 to 240 in 20 Hz increments
• RF Output:
  • Antenna Type: Dipole
  • Impedance: 50 Ω
  • Occupied Bandwidth: <200 kHz
• Channel-to-Channel Spacing:
  • Standard Mode: 350 kHz
  • High Density Mode: 125 kHz (varies by region)
• Modulation Type: Shure Axient Digital Proprietary
• Power: 2 mW, 10 mW, 35 mW (See Frequency Range and Output Power table, varies by region)
• Specific Absorption Rate (SAR): < 0.1 W/kg

ShowLink

• Network Type: IEEE 802.15.4
• Antenna Type: Dipole
• Frequency Range: 2.40 to 2.4835 GHz (16 Channels)
• RF Output Power: 10 dBm (ERP) (varies by region)

Frequency Range and Transmitter Output Level

*With a gap between 608 to 614 MHz.
**With a gap between 608 to 614 MHz and a gap between 616 to 653 MHz.
***Power delivered to the antenna port.
†Operation mode varies by region. In Brazil, High Density mode is used. Maximum power for Peru is 10mW.
††Limited to 10mW for Vietnam.
†††Only in UK; F-variant only.
▲Output power limited to 10 mW above 608 MHz.
◇Korea defines power as conducted (ERP), which is 1dB less than declared in table.

NCC Notice

低功率射頻器材技術規範 取得審驗證明之低功率射頻器材,非經核准,公司、商號或使用者均不得擅自變更頻率、加大功率或變更原設計之特性及功能。低功率射頻器材之使用不得影響飛航安全及干擾合法通信;經發現有干擾現象時,應立即停用,並改善至無干擾時方得繼續使用。前述合法通信,指依電信管理法規定作業之無線電通信。低功率射頻器材須忍受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。

NBTC Notice

เครื่องโทรคมนาคมและอุปกรณ์นี้มีความสอดคล้องตามมาตรฐานหรือข้อกำหนดทางเทคนิคของ กสทช.

K55 606-694 MHz

* This equipment may be capable of operating on some frequencies not authorized in your region. See Licensing Information.

G56 470-636 MHz

* This equipment may be capable of operating on some frequencies not authorized in your region. See Licensing Information.

K57 606-790 MHz

* This equipment may be capable of operating on some frequencies not authorized in your region. See Licensing Information.

LICENSING INFORMATION

Licensing: A ministerial license to operate this equipment may be required in certain areas. Consult your national authority for possible requirements. Changes or modifications not expressly approved by Shure Incorporated could void your authority to operate the equipment. Licensing of Shure wireless microphone equipment is the user's responsibility, and licensability depends on the user's classification and application, and on the selected frequency. Shure strongly urges the user to contact the appropriate telecommunications authority concerning proper licensing, and before choosing and ordering frequencies.

Australia Warning for Wireless

WARNING: This device operates under an ACMA class licence and must comply with all the conditions of that licence including operating frequencies. No user-operated control of power, frequency, or other parameters are available beyond those specified in this operating manual. Please follow your regional recycling scheme for batteries, packaging, and electronic waste.

Certifications

• Certified under FCC Part 15 and FCC Part 74.
• Certified by ISED in Canada under RSS-210.
• FCC ID: DD4AD3G57, DD4AD3K54, DD4AD3X55. IC: 616A-AD3G57, 616A-AD3K54.
• Meets essential requirements of the following European Directives:
  • WEEE Directive 2012/19/EU, as amended by 2008/34/EC
  • RoHS Directive EU 2015/863
• Note: Please follow your regional recycling scheme for batteries and electronic waste.
• This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.

CE Notice

Shure Incorporated declares that this product with CE Marking complies with European Union requirements. The full text of the EU declaration of conformity is available at: https://www.shure.com/en-EU/support/declarations-of-conformity.

SRRC Notice

(一)本产品符合“微功率短距离无线电发射设备目录和技术要求”的具体条款和使用场景;
(二)不得擅自改变使用场景或使用条件、扩大发射频率范围、加大发射功率(包括额外加装射频功率放大器),不得擅自更改发射天线;
(三)不得对其他合法的无线电台(站)产生有害干扰,也不得提出免受有害干扰保护;
(四)应当承受辐射射频能量的工业、科学及医疗(ISM)应用设备的干扰或其他合法的无线电台(站)干扰;
(五)如对其他合法的无线电台(站)产生有害干扰时,应立即停止使用,并采取措施消除干扰后方可继续使用;
(六)在航空器内和依据法律法规、国家有关规定、标准划设的射电天文台、气象雷达站、卫星地球站(含测控、测距、接收、导航站)等军民用无线电台(站)、机场等的电磁环境保护区域内使用微功率设备,应当遵守电磁环境保护及相关行业主管部门的规定。

Information to the user

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. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause interference with radio and television reception.

Notice: The FCC regulations provide that changes or modifications not expressly approved by Shure Incorporated could void your authority to operate this equipment.

Canada Warning for Wireless

This device operates on a no-protection, no-interference basis. Should the user seek protection from other radio services operating in the same TV bands, a radio licence is required. For details, consult Innovation, Science and Economic Development Canada's document Client Procedures Circular CPC-2-1-28, Voluntary Licensing of Licence-Exempt Low-Power Radio Apparatus in the TV Bands.

Ce dispositif fonctionne selon un régime de non-brouillage et de non-protection. Si l'utilisateur devait chercher à obtenir une certaine protection contre d'autres services radio fonctionnant dans les mêmes bandes de télévision, une licence radio serait requise. Pour en savoir plus, veuillez consulter la Circulaire des procédures concernant les clients CPC_2_1_28, Délivrance de licences sur une base volontaire pour les appareils radio de faible puissance exempts de licence et exploités dans les bandes de télévision d'Innovation, Sciences et Développement économique Canada.

This device operates on frequencies shared with other devices. Consult the Federal Communications Commission White Space Database Administration website to determine available channels in your area prior to operation.

Industry Canada (IC) Notices

This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to the following two conditions:

• This device may not cause interference.
• This device must accept any interference, including interference that may cause undesired operation of the device.

L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes :

• L'appareil ne doit pas produire de brouillage;
• L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.