Clear-Com Communications  

Poway,  CA 
United States
  • Booth: 1714

Clear-Com, an HME company, is a trusted global provider of professional real-time communications solutions and services since 1968. We innovate market proven wired and wireless systems that link people together. For over 40 years, Clear-Com has provided professional communications solutions for command & control, training & simulation, and net-centric communications. Clear-Com’s partyline, digital matrix, wireless systems, fiber transport and intercom-over-IP conferencing solutions have led the industry with high quality audio performance that meets critical needs in a variety of federal and municipal government operations.

 Press Releases

  • Unmanned Systems Group (UMS), a supplier of Remotely Piloted Aircraft Systems (RPAS), is using Clear-Com® intercom systems for its launch and pilot demonstrations. With Clear-Com’s Eclipse-PiCo Digital Matrix System and Tempest®2400 Digital Wireless Intercom System, the operations crew is able to efficiently coordinate the launch and piloting of the aircraft whether they are at the ground control station (GCS) or on the runway. 

    “The operation of UMS’ RPAS requires precise collaboration between operations personnel,” says David Cummins, Unmanned Systems Group Flight Operations Manager. “Due to the clear sound, flexibility and many intercom options of the Clear-Com solution, our staff members have highly intelligible and reliable communications to ensure safety and accuracy. 

    “We selected the Clear-Com equipment for its multi-user capabilities. Now, the pilots have many separate channels for private conversations with the sensor operator or the crew chief, or both simultaneously. At any given time, they can select the people they want to speak with while simultaneously transmitting on the two-way radio. Due to the ease of setup and use of the systems, our team can access communications quickly and don’t have to waste time reprogramming a radio or a box to do it.”

    The company plans to install the Eclipse system with V-Series panels in the GCS for demonstrations. The Tempest2400 wireless BeltStations will be used by members on the runway for launching and piloting the aircraft. Both the Eclipse matrix and Tempest systems are linked to the two-way radios in air traffic control, allowing all users on the system to intercommunicate. For example, the launch pilot can speak during the plane’s handover to the pilot responsible for controlling it when airborne. Not only can those in air traffic control and ground control stay connected, but both sets of users can also communicate with the aircraft’s camera operator as well as with the pre-flight engineer who supervises the aircraft. 
  • Products integrate to serve a wide range of intercom needs for unmanned systems test and evaluation & command and control

    Clear-Com®, a global leader in critical voice communications systems, will showcase its digital intercom technology line and how its devices work together at this year’s 2015 AUVSI. The systems include the new Clear-Com Gateway; the Eclipse-HX digital matrix; HelixNet™ Partyline intercom system; FreeSpeak II wireless intercom system; and the portable and flexibleDX300ES wireless communication system.

    Clear-Com Gateway is the ideal interoperability solution for enabling on-site communication within a discipline, across a discipline and across jurisdictions in order to facilitate coordination of actions at an event at every level.  The modular CG-X1 and CG-X4 devices are built on a flexible and cost-effective platform for linking and bridging disparate communication systems such as IP networks, telephone networks, radio spectrums and intercom systems. 

    Gateway combines advanced radio interface technology for analog and digital radios with a suite of programmable features to meet the most demanding radio and Land Mobile Radio (LMR) applications. Gateway bridges radio channels across different radio platforms, port-to-port, port-to-multi-port and Radio-over-IP (RoIP) – enabling cross-communication between different frequencies. In addition, as the radio market continues to move to Digital Radios and 4G LTE, Gateway devices can link to these digital radio networks via SIP and the Digital Radio Module which allow analog-to-digital and digital-to-digital bridging and conferencing on one platform. 

    The Eclipse-HX platform can serve as the core of an integrated intercom system for large-scale operations. Clear-Com’s family of Eclipse-HX capabilities can support up to 64 matrix systems trunked over Ethernet and IP connections, for both direct (point to point) and one-to-many (group and partyline or conference) connections. Users of the Eclipse-HX have a wide set of control options: key-panels, virtual panels on PCs, wireless beltpacks and mobile applications.

    The Eclipse-HX’s platform can be extended wirelessly by adding the FreeSpeak II enhanced DECT-based wireless intercom system, which operates in multiple license-free DECT bands (1.921-1.928GHz). FreeSpeak II can also be used either as a standalone base station wireless system with up to 20 connected full-duplex wireless beltpacks. When integrated with a Clear-Com’s Eclipse matrix (known as FreeSpeak II Integra), it can support up to 50 wireless beltpacks at a time.

    The all-digital HelixNet Partyline is aimed at group operations in command and control, and simulation and training. HelixNet systems can link and operate over IP networks, allowing users from any location in the world to be connected. Each HelixNet system offers four separate talk channels that deliver instant and direct access to an individual/specific group of operators. Each beltpack user can have talk/listen access to any two of the four talk channels. 

    The portable DX300ES system supports hands-free, full-duplex digital conversations with two-channel interfacing. Each base can support up to three full-duplex or 15 push-to-transmit shared users with four bases linked to support a maximum of 60 users and 12 hands-free, full-duplex conversations.

    “Today’s military, aerospace and government personnel require clear and reliable communications that work seamlessly together,” said Jennifer Cassidy, Sales Manager for the Military, Aerospace and Government division at Clear-Com.  “The interoperability of Clear-Com systems enhances teamwork and coordination and supplies superb audio clarity, which makes them ideal for unmanned systems, training and simulation, critical testing and evaluations, and command and control

    The AUVSI's Unmanned Systems 2015 show will be held on May 4-7, 2015 at the Georgia World Congress Center in Atlanta. Clear-Com will showcase its intercom solutions in Booth #1714.

  • Aerospace Operational Support Group (AOSG) is a Force Element Group of the Royal Australian Air Force.  AOSG operate a variety of aircraft for test and evaluation purposes with the PC9/A, F/A-18 Hornet, S-70A-9 Black Hawk and the Tiger Armed Reconnaissance Helicopter being permanently assigned to the group.  

    Development and Test Wing is a part of AOSG located at RAAF Base Edinburgh, South Australia.  Within this Wing, Aircraft Research and Development Unit (ARDU) conducts Flight Test using instrumentation systems developed by Aerospace Systems Engineering Squadron.  

    During Flight Test operations, telemetry from instrumented aircraft is received and monitored in the Real Time Monitoring Facility (RTMF) which is equipped with reception, processing and display systems for aircraft instrumentation data.  Using audio visual technology, the Flight Test Director and a team of aeronautical specialists are provided with situational awareness of the Flight Test operation. The intercom in this facility integrates several audio services into a system by which the Flight Test Director can exercise command and control of the RTMF whilst sharing information amongst the team.  

    At the initial design stage, a simple two channel partyline system was anticipated.  However, the end users demanded functionality that reflected their expectations based on military and aviation grade systems as used in heavy aircraft, air traffic control and in Command Centres.  Accordingly, a matrix architecture was sought.  The Clear-Com system was chosen because it offered generous interfacing capabilities at a price point well below military grade systems which would have been excessive for ground use.  The i-Series user stations were selected for their slimline form factor which sits discreetly on the desktop.

    The interfacing capabilities of the Clear-Com  have been put to good use.  Signals between the Matrix controller and User Stations are transported over Category Five cabling.  The Matrix controller has been interfaced with UHF transceivers and specific users are enabled to key the transmitter from their stations.  PABX access is also provided through the controller and likewise, users are able to dial out from their stations.  Both open and closed headsets can be plugged in at the user’s option.  The rear panel of the i-Series stations provided means to open the microphone or to key UHF transceivers by a choice of belt clip PTT switch, foot pedal or front panel button. Selected nets are fed into a data recorder for subsequent post mission review.

    The air to ground telemetry downlink provides cockpit audio which has been interfaced into the Matrix controller.  This functions as a one way hot-mic service by which the Test Pilot can talk his way through a manoeuvre.  It is independent of the UHF system which remains open for the Flight Test Director to call a stop based on feedback from telemetry data.

    Even though the Clear-Com system is a commercial product, the military aviation community at AOSG is completely familiar with its functionality.  The headsets are similar to but lighter than aviation models.  Users take advantage of one to one and one to many networks, key their transmitters, issue and execute commands as a disciplined and professional crew.  

  • Clear-Com intercom systems were implemented at the National Full-Scale Aerodynamic Complex (NFAC), located at NASA’s Ames Research Center, for communicating and coordinating wind tunnel test operations across the facility. The Eclipse-Median digital matrix intercom system, V-Series user control panels and CellCom Integra wireless beltpacks are bridging the communications gap among the test engineers.

    Originally established by NASA, and currently leased and operated by the Air Force in Moffett Field, California, the NFAC is home to the world’s largest and only 80 by 120 feet wind tunnel that can handle full-scale rotorcraft helicopter testing.  Because there are many activities and high noise levels during the wind tunnel testing, the large staff requires efficient and clear communications throughout the complex setup of testing areas. In addition, there are three spaces of the NFAC involved in test operations: the two wind tunnel test sections, the control room, and the “blue room” which houses circuitry. It is extremely important for the engineers to maintain consistent, high-quality communications across all areas.

    The team of test engineers, contracted by Jacobs Engineering, turned to Clear-Com’s Eclipse-Median, V-Series and CellCom for their flexibility and reliability, as well as for the robust wireless capabilities that are critical to enable the test operations. Eclipse-Median serves as the central communications hub in the blue room. Connecting the CellCom wireless beltpacks to the Eclipse-Median system is the EQue card, a cellular control card that provides a seamless integration between systems. CEL-TA active transceiver antennas are strategically placed throughout the test areas and in the control room to offer sufficient coverage area. Test engineers can then communicate omni-directionally to other roaming CellCom users and/or users of the V-Series panels.

    Not only can the test engineers use their 20 wireless beltpacks to communicate from any control room or test area, but they are also able to communicate on a one to one or group basis. With CellCom’s 1.92-1.93 band, it has extended the number of possible users on the system which is limited by their prior UHF wireless systems. This is especially beneficial for all the test engineers that need to communicate even when there are up to 30 people in a test control room at once.

    “We were really blown away after the Clear-Com sales team educated us on all of the Eclipse-Median’s functionalities,” says Chris Hartley, wind tunnel test engineer, Jacobs Engineering, for NFAC at the NASA Ames Research Center. “When we’re conducting tests, there’s a lot going on; we have rotor operators flying the helicopter, the wind tunnel operator controlling the speed of the tunnel and then our test director, who has to coordinate with all of them. It’s very important for him to be able to talk to anyone at anytime and be able to move around within the control room. Having the wireless capabilities that this intercom system provides is just what we needed.”

    In addition to the improved workflow, the Jacobs Engineering team at NFAC also experiences crystal clear audio from the Clear-Com systems. Even when the control room gets extremely noisy from wind tunnel testing, the team can turn up the audio level of the system and control the master volume and the speaker. All V-Series panels feature Clear-Com’s “Listen Again” technology, which employs digital audio memory to allow the user to replay 30 seconds of received incoming calls, aiding communication in noisy and demanding environments.

    “Clear-Com has a long history of supplying intercom equipment to the military and has enjoyed, in particular, a strong relationship with NASA over the years,” says Jay Wallace, Regional Sales Manager, Northwest Region, Clear-Com.  “We are honored that the Air Force and NASA Ames Research Center chose our Eclipse-Median, V-Series panels and CellCom to create one, complete solution that meets the needs of its wind tunnel testing crew. The system combines the perfect balance of sound quality and flexibility that the engineers there find critically important to coordinating communications during testing.”

    Note: CellCom® and FreeSpeak® are different brands representing the same digital wireless intercom system (with minor technical differences). Due to trademark limitations, CellCom and CellCom Integra (formerly CellCom50) are only available in the U.S. and Canada; and FreeSpeak and FreeSpeak Integra (formerly FreeSpeak50) are available in all countries other than the U.S. and Canada.


  • HME DX Series Wireless Intercoms
    HME DX Series Wireless Intercoms are reliable 2.4 GHz digital wireless intercoms for small-to mid-size applications. Spectrum-friendly technology is embedded for interference-free operation. There are five wireless intercom options to choose from....

  • The HME DX210 is the latest wireless intercom in the HME DX Series. It offers the perfect blend of wireless intercom performance, system compatibility with wired intercoms, and ease of use for unmanned systems test and evaluation.


    The DX210’s wired intercom interface is compatible with Clear-Com’s or RTS’ 2-wire systems, and provides two separate 2-wire and 4-wire interconnections. The 1RU base station supports up to 15 full-duplex beltpacks and/or wireless headsets (COMMUNICATOR®s) by linking four base stations.


    The HME DX210 has a digital auto-nulling circuit, which allows users to eliminate the return audio of the wired 2-wire intercom.The DX210 also has an assignable AUX input for program. The DX210 allows for relay (GPO) actuation with ISO function from either base station or any one of the appropriately configured COMMUNICATORs.


    The DX210 features Spectrum-Friendly™ Technology  and Digital Frequency-Hopping Spread Spectrum (FHSS) technology for interference-free communication.

  • Eclipse HX-Delta Matrix Intercom System
    The 256-port Eclipse HX-Delta offers the connectivity and high capacity of a large system in a smaller 3RU frame. It can house two CPU cards, four frame cards, and up to three interface modules....

  • The cost-effective and compact Eclipse HX-Delta system provides two CPU cards for redundant system control, along with the option of up to four varied I/O frame cards and up to three interface modules in a 3RU frame. It is supported by the high-performance EHX Configuration Software and can be intelligently linked with Eclipse HX-PiCo, Eclipse HX-Median and Eclipse HX-Omega frames.

    It is ideal for applications where team members of a common operation are situated in geographically-dispersed locations, either in different parts of the building, within the vicinity, across town/country, or in other countries. The system offers many different connectivity options to tie together multiple command points, either over Ethernet LAN/WAN, E1/T1, IP, and/or Fiber.  It can support local or remote operators on wired, wireless, and IP-based user devices.

  • HelixNet Partyline
    HelixNet is a flexible, scalable and intelligent digital network partyline intercom for dynamic group communication. It delivers superb digital sound, ease of deployment and operation, and simplified cabling....

  • HelixNet Digital Network Partyline consist of the four-channel HMS-4X Main Station, the HBP-2X HelixNet Beltpack, several interface modules, the HRM-4X Remote Station, HKB-2X Speaker Station and S-Mount.

    HelixNet devices can be powered by Powerline modem, Power-over-Ethernet (PoE), or a Universal AC wall adapter. Multiple systems may also be linked together over a fiber or Ethernet connection to support 60 users and up to 12 intercom channels. Each beltpack can access two of the total shared audio channels, program audio and power over a single shielded twisted pair cable.

    The legendary “Clear-Com Sound” delivers superior, digital quality sound for a highly intelligible audio experience. Hardware auto-discovery, intuitive menu operations, and channel accessibility are also unique features that make system setup and maintenance effortless.

  • ProGrid Signal Transport Solutions
    ProGrid is a fiber-based infrastructure system that enables users to transport and distribute audio, intercom, video and control data....

  • ProGrid is based on the open AES3 and AES10 (MADI) standards, providing fiber-based transport, routing and format conversion as well as distribution of audio, intercom, video and control data with full management and diagnostic capabilities over the Optocore® and SANE platform. A versatile, modular approach enables users to match the demands of a specific system need and budget, and to manage future expansion. 
  • FreeSpeak II Wireless Intercom
    FreeSpeak II™ is a DECT-based distributed wireless solution that operates in multiple world-wide license-free frequency bands: 1.897-1.933GHz. This wireless intercom system is designed for extensive communication in large-scale operations....

  • FreeSpeak II Digital Wireless Intercom operates within the license-free 1.897GHz - 1.933GHz frequency band. FreeSpeak II combines DECT and wireless autoroaming technologies to allow users to move freely without experiencing audio fading or losing connection. FreeSpeak II can operate as a stand-alone system, with up to 20 full-duplex wireless beltpacks connected to one base station. As an integrated solution where beltpacks are seamlessly connected to a matrix frame, up to 50 user connections can be achieved. Five-way antenna splitters and up to 10 active antennas can be installed to create an exceptionally wide coverage zone for beltpack users to roam.