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Clear-Com BS121 Base Station

Part Number: Clear-Com CZ11461

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Clear-Com BS121 Base Station

Clear-Com BS121 Mobile Base Station for the HME DX121 Portable Digital Wireless Intercom System. Includes base station with HS-XLR4F interface cable, 115/230VAC power supply, 115VAC power cord, 2 antennas, and manual.

HME DX121 Base Station Highlights:

  • Headset Connector Connectivity can be connected to most hardwired intercom headset jacks for instant wireless communication.
  • Four-Wire Connectivity interfaces to four-wire/matrix intercoms and radio based communication systems. Assignable relay closure for advanced functionality.
  • Built-In Battery Charger One-port battery charger charges a remote Communicator battery in under three hours.
  • Spectrum Friendly Frequency Range can be selected for low band only (2401.92 - 2439.936 MHz) high band only (2443.392 - 2481.408 MHz) or full band (2400-2483.5 MHz).
  • Digital Frequency-Hopping, Spread Spectrum (FHSS) Encryption Technology ensures confidential communication. Approved for worldwide use.
  • Assignable Relay Closure provides advanced functionality when used with matrix intercoms or radio based communication systems.
  • Expandable, compatible with the entire HME DX 200 and 100 series of digital wireless intercom products.
  • Four-Wire I/O Connection 600 Ω balanced, level adjustable.
  • Headset I/O Connection 200 Ω, level adjustable for interfacing to a Dynamic MIC headset connector.


  • Frequency Range: 2400-2483.5 MHz
  • Frequency Response: 200 Hz to 3.5 kHz
  • Power Requirements: 100–240VAC, 50-60Hz or 12-14VDC
  • Temperature Range: -4-131°F (-20-55°C) Typ.
  • Size: 1.62" x 5.50" x 7.88" (4.1cm x 14cm x 20cm)
  • Weight: 1.2 lbs. (0.59kg) with battery
  • 4-Wire I/O: 600 Ω balanced, level adjustment
  • Headset I/O: 200 Ω balanced, level adjustment
  • Antenna Type: External, dual diversity ½-wave dipole (R-TNC connector)
  • System Distortion: <2%
  • Communication Security: 64-bit encryption dual slot diversity
  • Transmission Modes: Continuous (Latched) or Push-to-Talk (PTT)
  • Transmitter Specifications:
  • Type: Frequency-Hopping, Spread Spectrum (FHSS)
  • Transmit Power: 100mw Burst
  • Modulation Type: Gaussian filtered FSK, TDM
  • Frequency Stability: 13 ppm
  • Harmonics/Spurious: Exceeds FCC and ETSI specifications over temperature

Receiver Specifications:

  • Type: Frequency-Hopping, Spread Spectrum (FHSS)
  • RF Sensitivity: <-90dBm w 10-3 BER
  • Frequency Stability: 13 ppm
  • Distortion: <2%
  • FCC License: Not Required

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