Clear-Com CZ11464 DX121 System with ComLink WH200 Wireless Headset

2.4GHz Digital Wireless System
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The HME DX121 system is comprised of the BS121 base station, BP200 beltpack or WH200 wireless headset, and compatible headsets. The DX121 supports 1 full-duplex or 4 push-to-transmit shared beltpacks, while providing interface option to 4-wire intercom systems only. It is a highly portable and versatile system that can be plugged directly into the headset jack of any intercom station or into a four-wire connection of a device such as a digital matrix intercom. The 2.4 GHz frequency-hopping, Spectrum Friendly technology allows up to eight DX121's to be used together to support multiple channel applications. The DX121 can be used to support wireless channels for theatrical and live crew events, broadcast control room operators, technical support crews and for connecting remote staff at large venues.

System Highlights

  • Headset Connector Connectivity
  • Four-Wire Connectivity
  • Built-In Battery Charger
  • Digital Frequency-Hopping Spread Spectrum (FHSS)
  • HME Spectrum Friendly Technology


DX121C System with WH200 Comlink Headset: CZ11464

1 BS121 Base Station
1 WH200 Comlink Headset
2 BAT41 Battery Li-ion Rechargeable
1 DX121 HS-XLR4F Interface Cable
1 12VDC 60W Power Supply (100/240VAC Universal)
1 115VAC Power Cord

More Information
Manufacturer Part Number CZ11464

BS121 System Specifications

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. (.59kg) with battery

4-Wire I/O600 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 Stability13 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


FCC License Not Required


Transmit Power 100 mW Burst

Antenna Internal

Mic Input N/A

Headset Connector N/A

Headset Output 160 mW into 32Ω

Size N/A

Weight 5.7 oz (0.16 kg) with Battery

Power Requirements One Lithium-Ion Rechargeable

Battery Life Hands-Free: Hands-Free: Up to 14 Hrs
PTT: Up to 20 Hrs

FCC Acceptance Part 15 (No License Required)


HME DX121 Base Station Highlights:

Headset Connector Connectivity
can be connected to most hardwired intercom headset jacks for instant wirelesscommunication.

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.

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.

HME DX Series WH200 Wireless Headset Highlights:

Internal antennas are housed inside the COMMUNICATORs for extra durability. Rechargeable lithium-ion batteries provide up to 20 hours of beltpack or all-in-one wireless headset operation with each charge. Voice prompts inform users of status changes through the headset, such as "change battery" or "out of range." Electronic mic gain and sidetone adjustments allow for easy, tool-free settings.Sidetone adjustment is not required on the WH200. Selectable momentary or latching button mode allows better management of system resources.

The Beltpack Pouch with internal clip is constructed with santoprene rubber to provide maximum protection on HME DX Series beltpacks. The beltpack is securely locked into the pouch and worn at the user's hip position. All buttons on the beltpack are bump-proofed by the pouch and yet still easily accessible.

The BAT41 is a Li-ion rechargeable battery, used to operate the HME BP200 beltpacks and the WH200 COMMUNICATOR.

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