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Tempest900 900MHz 4-Ch. Wireless Intercom BaseStation

Tempest900 900MHz 4-Ch. Wireless Intercom BaseStation

Part Number: Tempest TMP-B409

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Tempest900 900MHz 4-Ch. Wireless Intercom BaseStation

The Tempest CM-944 is a 4-channel Frequency Hopping Spread Spectrum (FHSS) digital wireless intercom system operating in the 902 to 928MHz band. The front panel LCD display provides real time status including battery monitoring of active BeltStations and easy access to the hardwire intercom settings and levels. Each BaseStation is capable of Call and Remote Mic Kill.


  • 4-channel digital wireless BaseStation
  • 900MHz, license free operation
  • Lost Packet Concealment prevents "clicks" and "pops" when a data packet is lost
  • Accu-Sync synchronization
  • Connect an unlimited number of BeltStations per BaseStation
  • Connects both 2-channel and 4-channel BeltStations
  • T-Desk software enables remote monitoring via LAN interface
  • Optional Remote Transceiver extends antenna coverage up to 1500' (450m) from BaseStation
System Specifications:
  • RF Frequency: 902 to 928 MHz
  • RF Scheme: FHSS with TDMA
  • Effective Radiated Power: 250mW using 2dBi antenna
  • Receiver Sensitivity: -100 dBm for 10-5 BER
  • Radio Certification: FCC Part 15, Canadian RSS-210, license free
  • Transmission Range: Up to 1,000ft (305m); 500 - 900ft (150 - 275m) typical
  • Audio Dynamic Range: >94dB
  • Audio Frequency Response: 300Hz - 3.8KHz with proprietary audio voice shaping
  • System Latency: Less than 50ms direct
BaseStation Specifications:
  • Intercom Audio Channels: 4
  • Full-duplex BeltStations per BaseStation: 5 (in Normal Mode) Half-duplex, Shared
  • BeltStations per BaseStation: Unlimited
  • Number of Antenna Ports per BaseStations: 1
  • Antenna Connector Type: RP-TNC
  • Number of Synchronized BaseStations: 5
  • BaseStation/BeltStation Pairing: Mini-jack/cable
  • Programming Port: USB
  • Stage Announce and GPO Closures: 6 relays via DB15
  • 2-wire Intercom Interface: 4 channels via XLR-3F with XLR-3M loop
  • 2-wire Compatibility: RTS and balanced compatible
  • 4-wire/Matrix Connection: 4 ports via RJ-45
  • Aux Input: 1/4" 3-conductor jack accepts -4 to +8dB, balanced, transformer isolated
  • Aux Output: 1/4” 3-conductor jack nominal -4 to +8dB, balanced, transformer isolated
  • Stage Announce Output: XLR-3M, nominal -4 to +8dB, balanced, transformer isolated
  • Front Panel Headset: 4-pin male XLR
  • MicrophoneType: Dynamic or Electret, Auto-Selected
  • Front Panel LCD Display: 240 x 64 resolution 32 level grayscale
  • Power input - AC: 85-264 VAC at 50 -60 Hertz, 15 Watts
  • Environmental: -4° – 122° F (-20° – 50° C)
  • Dimensions: 19" W x 1.76" H x 12" D (483 mm x 44 mm x 190 mm)
  • Weight: 10.5 lbs (4.75 kg)

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