SpectraPulse® Ultra Wideband (UWB) Wireless Microphone System

Sound & Video Contractor's John McJunkin strongly recommends the SpectraPulse System for high-end installs. Read his review here.
Audio-Technica’s innovative application of pure digital Ultra Wideband (UWB) technology, the award-winning SpectraPulse UWB Wireless Microphone System bypasses the increasingly congested RF bottleneck to deliver clear, intelligible audio without the performance and set-up issues associated with conventional wireless systems.

Designed for conferences, courtrooms, corporate events and more, SpectraPulse delivers license-free plug-and-play simplicity, rock-solid performance, and impenetrable security. Operating in the sparsely populated 6-10 GHz range, SpectraPulse systems are completely out of the range of TV signals and white space devices. With no companding or compression circuits to diminish signal quality, and no need for frequency coordination, SpectraPulse offers extremely straightforward setup/operation along with all-digital clarity and versatility.

Secure
Operating 41 dB below the ambient RF noise floor, with pulses only 2 nanoseconds in duration, SpectraPulse offers levels of security that have never before been commercially available in wireless microphones. The inherently secure system offers an optional 128-bit AES encryption package for customers who want to use SpectraPulse systems in sensitive environments. The National Security Agency has approved AES 128-bit encryption to protect classified information.

Simple & quick to install
For the contractor or system integrator, setting up a SpectraPulse system is simple and quick. Install the Digital Receiver Module (drm141) and connect it to the equipment rack via a standard shielded Cat-5 cable.

In the rack, install up to two Audio Control Interface (aci707) units for a total of 14 separate microphone channels. For expanded coverage area and use in adjacent rooms, install an rcu104 receiver coordinator unit in the rack and add up to three drm141 Digital Receiver Modules (for a maximum total of four) to the SpectraPulse system. Place up to 14 Microphone Transmitter Units (mtu101) out in the environment as required and set their individual addresses. Alternatively, you may use mtu201 XLR Desk Stand Transmitters combined with Audio-Technica Engineered Sound gooseneck microphones, and/or mtu301 Body-pack Transmitters paired with lavalier or headworn microphones. Turn the system on, and SpectraPulse is ready to go. There is no frequency scanning or channel planning required.

Click here to read Audio-Technica’s SpectraPulse® White Paper.
    SpectraPulse® system features
  • Digital—SpectraPulse® pure digital technology delivers remarkable sound and connectivity.

  • Ultra Wideband (UWB) wireless operation— Delivers clear, intelligible audio with none of the performance and set-up issues associated with conventional RF wireless microphone systems.

  • Easy to set up and operate—Designed for quick, intuitive setup and user-friendly operation.

  • Interference-free performance—Very few RF devices are approved to operate in the frequencies where SpectraPulse UWB wireless microphone system operates.

  • No problems in crowded RF environments—Bypasses the increasingly congested UHF, VHF and 2.4GHz frequency bands; ideal for use in areas with high RF congestion.

  • No frequency hunting or coordination—14 simultaneous channels operate with no frequency coordination required. Channel selection is quick and easy.

  • Immunity to multipath interference—Offers extremely reliable performance; no dropouts or sputters.

  • Now available with body-pack transmitters—Paired with a lavalier or headworn microphone, the mtu301 Body-pack Transmitter allows speakers to transmit audio as they move throughout the SpectraPulse coverage area

  • Inherent security—UWB data is transmitted in extremely short-duration pulses sent in a timed sequence over a wide frequency spectrum. To decode the pulses, the Digital Receiver Module must know exactly when, where and how to listen. This makes SpectraPulse inherently secure.

  • Encryption available—Optional encryption package meets the AES 128-bit encryption standard developed by the U.S. government for securing sensitive material.

  • Excellent audio quality—Digital signal requires no compression; imperceptible latency; microphone muting is silent.

  • Universal interface—Connects with teleconference systems, videoconference systems, PA/local sound systems, archive recording and logging systems.

  • Contact closure input/output (on Audio Control Interface) —Provides control interface with external devices.

  • Flexible performance—Soft-touch button on boundary microphone/transmitter is configurable for push-to-talk, push-to-mute, and toggle operation.

  • Minimal Rack Space Required—7 channels in 1 rack space, 14 channels in 2 rack spaces.

  • Now available with receiver coordinator—Pair the new rcu104 Receiver Coordinator Unit with up to four Digital Receiver Modules for expanded coverage and use in adjacent rooms.

  • Optional rechargeable batteries and charging/encryption station— Rechargeable AA NiMH batteries are included with the cei007 Charging/Encryption Interface.

  • Affordable—Extremely cost-competitive with traditional FM wireless.



SPECIFICATIONS
System Specifications
Frequency range6.100 GHz – 6.600 GHz
Center frequency6.350 GHz
AD/DA16 bits
Clock24.576 MHz
Sampling rate24 kHz
Pulse duration2 nanoseconds
Frame length1 ms
Time slots per frame15
UWB rate8 mbps
CompressionNone
CompandingNone
Latency< 3 ms
Average RF power40 nanowatts
Sync/Re-acquisition time< 3 ms
Range23 m (75’)
Simultaneous channels14
Power input100-240 V AC, 50/60 Hz
System frequency response100 – 12,000 Hz
Mains (aci707)100-240 V, 50/60 Hz
RoHS-compliant power supply


mtu101 Specifications
Microphone ElementFixed-charge back plate, permanently polarized condenser
Polar PatternUnidirectional
Battery Life Approximatley 9 hours, depending on battery type and use pattern
Current Consumption180 mA @ 3 V DC
Average RF Power40 nanowatts
Optional Encryption AES level 3, 128 bit


mtu201 Specifications
Input ConnectorXLR-female low impedance intended for use with Audio-Technica gooseneck microphone of Engineered Sound series.
Bias voltage to mic feedThe mtu201 delivers 11.5V DC to the XLR connector in order to power any of the A-T Engineered Sound series microphones.
Battery type Two 1.5 volt AA alkaline batteries are included. Rechargeable SANYO brand NiMH AA batteries are recommended; they are included with the available cei007 Charging/Encryption Interface.
Battery Life Approximately 9 hours, depending on battery type and use pattern
Current Consumption180 mA @ 3 V DC
Average RF Power40 nanowatts
Optional Encryption AES level 3, 128 bit


mtu301 Specifications
Input Connector4-pin locking connector. Compatible with Audio-Technica Wireless Essentials® lavalier and headworn microphones
Bias voltage to mic feedThe mtu301 delivers 11.5V DC to pin 4 of the input connector
Battery type Two 1.5 volt AA alkaline batteries are included. Rechargeable SANYO brand NiMH AA batteries are recommended; they are included with the available chg001 wall charger.
Battery Life Approximately 9 hours, depending on battery type and use pattern
Current Consumption260 mA at 3 V DC
Average RF Power40 nanowatts
Optional Encryption AES level 3, 128 bit


Dimensions
aci707480.0 mm (19.00") W x 45.7 mm (1.80") H x 193.8 mm (7.63") D
drm141193.5 mm (7.62") W x 128.8 mm (5.07") H x 91.4 mm (3.60") D
mtu10182.3 mm (3.24") W x 45.2 mm (1.78") H x 131.6 mm (5.18") D
mtu20182.6 mm (3.25") W x 63.0 mm (2.48") H x 131.0 mm (5.19") D
mtu30181.8 mm (3.22") W x 118.0 mm (4.65") H x 27.5 mm (1.08") D
cei007156.7 mm (6.17") W x 161.5 mm (6.36") H x 560.1 mm (22.05") D


Weight
aci7072.0 kg (4.5 lbs)
drm141725.7 g (25.6 oz)
mtu101499.0 g (17.6 oz)
mtu201612.0 g (1.35 lbs)
mtu301227.0 g (0.5 lbs), less batteries
cei0071.5 kg (3.4 lbs)




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Answer: 
Thank you for your inquiry. We can and certainly may make handheld microphones for the SpectraPulse system sometime in the future. The release to the market of a handheld microphone for the SpectaPulse system will be determined by market conditions.
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Answer: 
Thank you for your inquiry. The maximum number of microphones per system is 14.
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Answer: 
Thank you for your inquiry. That would depend upon the distance the systems are apart and how well shielded the rooms are against RF. Please contact our Audio Solutions team at 330 -686-2600 ext 5000 and they would be happy to help you with this.
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SpectraPulse® : Ultra Wideband (UWB) Wireless Microphone System
http://www.audio-technica.com/cms/resource_library/product_images/7717b53932830b25/orig/spectrapulse_mtu201_pr.jpg

SpectraPulse® : Ultra Wideband (UWB) Wireless Microphone System

SpectraPulse Ultra Wideband Wireless (shown with mtu101, drm141 and aci707)
http://www.audio-technica.com/cms/resource_library/product_images/ac97e1a549a59ca6/orig/spectrapulse_pr_gp.jpg

: SpectraPulse Ultra Wideband Wireless (shown with mtu101, drm141 and aci707)

mtu101 microphone transmitter unit
http://www.audio-technica.com/cms/resource_library/product_images/bcedd0b17b9ee994/orig/mtu101_1.jpg

: mtu101 microphone transmitter unit

mtu201 XLR desk stand transmitter
http://www.audio-technica.com/cms/resource_library/product_images/29594dc3a268ac1b/orig/mtu201_1.jpg

: mtu201 XLR desk stand transmitter

mtu301 body-pack transmitter
http://www.audio-technica.com/cms/resource_library/product_images/c38f29e3166e5c61/orig/mtu301.jpg

: mtu301 body-pack transmitter

aci707 audio control interface
http://www.audio-technica.com/cms/resource_library/product_images/1f168c3bb269d37d/orig/aci707_1.jpg

: aci707 audio control interface

drm141 digital receiver module
http://www.audio-technica.com/cms/resource_library/product_images/9e725e34a03942a5/orig/drm141_1.jpg

: drm141 digital receiver module

cei007 charging/encryption interface
http://www.audio-technica.com/cms/resource_library/product_images/855d49043b6928aa/orig/cei007_1.jpg

: cei007 charging/encryption interface

rcu104 Receiver Coordinator Unit
http://www.audio-technica.com/cms/resource_library/product_images/26e7fce398eaf727/orig/rcu104.jpg

: rcu104 Receiver Coordinator Unit

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