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Clear-Com

Clear-Com Tempest900 4-Channel 9 MHz Wireless Beltpack Transceiver

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New System Offers Additional Wireless Options and Better Coverage in Challenging Environments

Clear-Com®, a global leader in critical voice communications systems, is launching the new Tempest®900 900MHz digital wireless intercom system. Together with Tempest®2400, the Tempest900 offers customers another viable and reliable wireless intercom option for their specific application needs. Tempest900 is available in the United States and Canada, while Tempest2400 is distributed worldwide.

Tempest900 offers much of the same intuitive operation and menu structure, as well as look and feel, of the Tempest2400 system. Tempest900 is also available in 2- and 4-channel versions and comes fully-loaded with the same set of features, functions and operations as the Tempest2400; including the ability to operate in Normal, Split and Shared Modes.

The difference is that Tempest900 may provide improved coverage in areas where more structural penetration is required and in large enclosed areas where multipath interference would otherwise be a factor. The longer wavelengths and wider symbol width used in the 902 to 928 MHz frequency range allow Tempest900 signals to break through dense walls and other structural objects more readily, increasing the range for users and reducing potential loss of audio.

“In the world of RF technology there is rarely a single solution for all applications or all environments,” says Stephen Sandford, Product Manager of the Tempest wireless systems. “Tempest900 was created to perform in certain applications that may not be appropriate for 2.4GHz or other technologies. In other cases, it can perfectly complement other wireless intercom systems such as the Tempest2400 to address specific communication requirements. We are pleased to announce the launch of the Tempest900 at this year’s NAB Show.”

A single Tempest900 in Normal Mode can support between one and five full duplex wireless users who always need the ability to talk on the intercom system. But, by using a BaseStation in Split or Shared Mode, it can support an unlimited number of users who need to monitor the conversation and can share talk capacity.

A total of five Tempest900 BaseStations can be co-located and connected together via their Partyline or 4-wire intercom connections offering a maximum of 25 Tempest full duplex wireless BeltStations operating in close proximity while maintaining excellent system performance. To further expand a system  Tempest900 and Tempest2400 can be used together, so it is now possible to combine up to 15 BaseStations, using 10 Tempest2400s and five Tempest900s.

With the addition of Tempest900, Clear-Com is now the only provider in the broadcast and live performance markets to offer a wide range of Basic, Advanced and Expert level wireless intercom solutions including the Tempest2400 2.4GHz system, CellCom®1.92-1.93GHz system, HME DX Series 2.4GHz systems, and HME PRO850™ UHF band system.

View Product Features

  • Professional-grade 4-channel wireless beltpack for use with the Tempest900 system
  • Operates in the 902–928 MHz frequency range, ideal for penetrating dense structures and minimizing multipath interference
  • Supports Normal, Split, and Shared Modes for flexible communication setup
  • Enables full-duplex communication for up to 5 users per BaseStation; expandable with multiple BaseStations
  • Seamless integration with Clear-Com intercom systems via Partyline or 4-wire connections
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About the Clear-Com Tempest900 4-Channel 9 MHz Wireless Beltpack Transceiver

The Clear-Com Tempest900 is a professional 4-channel wireless intercom beltpack transceiver operating in the 900 MHz ISM band, providing license-free, full-duplex communication for mobile production crew. This digital system is designed to offer robust performance with excellent immunity to interference, making it suitable for complex RF environments such as television studios, live events, and theatrical productions where multiple wireless systems are in use. The beltpack provides four independent communication channels, allowing a single user to monitor and participate in multiple talk groups—such as simultaneously listening to the director on one channel while communicating with a camera team on another—which is invaluable for key personnel like stage managers or technical directors who must coordinate across departments.

The device is engineered for durability and user-friendly operation. It features an intuitive interface with a backlit LCD screen that displays channel assignments, battery status, signal strength, and system information. Dedicated buttons and knobs provide quick access to volume control, channel selection, and call signaling. Powered by a rechargeable lithium-ion battery pack that offers extended operational time, the beltpack ensures reliability throughout long production days. It includes a standard 4-pin XLR connector for connecting a wide variety of Clear-Com wired headsets, allowing users to choose their preferred audio interface. The robust metal housing is built to withstand the physical demands of professional use.

Integration into existing intercom infrastructure is seamless. The Tempest900 beltpack communicates with its dedicated base station, which can then be connected to wired party-line or matrix intercom systems, enabling wireless users to interact fully with all wired participants. The system utilizes frequency-hopping spread spectrum (FHSS) technology for secure and reliable digital transmission. With its four-channel capability, license-free operation, and professional build quality, the Clear-Com Tempest900 provides a flexible and powerful wireless communication solution that enhances mobility and coordination for production teams in dynamic environments.

Key Features

  • Professional-grade 4-channel wireless beltpack for use with the Tempest900 system
  • Operates in the 902–928 MHz frequency range, ideal for penetrating dense structures and minimizing multipath interference
  • Supports Normal, Split, and Shared Modes for flexible communication setup
  • Enables full-duplex communication for up to 5 users per BaseStation; expandable with multiple BaseStations
  • Seamless integration with Clear-Com intercom systems via Partyline or 4-wire connections

Clear-Com Tempest900 4-Channel 9 MHz Wireless Beltpack Transceiver Specs

Wireless System
Technology
900 MHz ISM Band Digital
Audio Mode
Full-duplex
Channels
4 Independent
Beltpack Core
Battery
Rechargeable Lithium-ion
Display
Backlit LCD
Controls
Volume, Channel Select, Call
Audio Connectivity
Headset Connector
4-pin XLR
Microphone Input
Via Headset Connector
Physical & Integration
Chassis
Metal
Integration
Works with Tempest Base Station
Base Station Link
To Wired Intercom Systems
Key Features
Transmission
Frequency Hopping Spread Spectrum
Operational Use
Mobile Multi-channel Communication

Key Features

  • Professional-grade 4-channel wireless beltpack for use with the Tempest900 system
  • Operates in the 902–928 MHz frequency range, ideal for penetrating dense structures and minimizing multipath interference
  • Supports Normal, Split, and Shared Modes for flexible communication setup
  • Enables full-duplex communication for up to 5 users per BaseStation; expandable with multiple BaseStations
  • Seamless integration with Clear-Com intercom systems via Partyline or 4-wire connections
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