InteropRadio Services

By: Interopradio  09-12-2011
Keywords: Voice over IP, Voice Over, Mobile Computing


Radio Systems Marketing provides technical consulting services for interoperability requirement analysis and mobile radio system design. In addition to Interoperability, RSM specializes in conventional voice, trunked voice and advanced mobile data and mobile computing communications systems.

Voice Radio Systems

We specialize on the development of interfaces between different, dissimilar systems, and in gateways to connect systems to each other and to/from public and private telephone systems. Several years of experience at device level, sub-system and large system design involving non-conventional interfaces and multiple devices attached and operating concurrently over voice radio systems. For instance, public safety, public utilities and large railroad mobile radio applications where radios are often used to connect sensors and operate remote equipment as well as for voice traffic.

Mobile Computing and Mobile Data Systems

Experience in the design and commissioning of systems carrying wireless digital data at rates from 2.4 Kb/s to several Mb/s. Development of data systems that can also carry voice, for instance Voice Over IP for communications and interoperability. Design and development of open standards based wireless networks using several platforms and hardware from a handful of leading vendors. Design of low cost secure wireless communications using state of the art Triple-AES and Triple-DES encryption, Virtual Private Networks and Mobile Intranets and Internets. We can develop a system totally using only the customer infrastructure and networks, the public carrier networks or a combination of both.

Mobilcom Van - Interoperable Radio Laboratory on Wheels

A fully equipped mobile computing laboratory (Mobilcom Van) is used by Radio Systems Marketing to evaluate present systems, develop concepts and test potential interoperability solutions for compliance with needs and requirements. This mobile laboratory has several on-board radio systems, three Voice Over IP interoperable gateways and a sophisticated external communications system including three satellite terminals, SPRINT and Verizon 1xRTT high speed wireless Internet and industrial grade wireless Local Area Networks. An advanced and secure on-board computing network and several wireless computers are also part of the Mobilcom Van.

Radio Systems Marketing has the capability to provide working demonstrations of different interoperable radio systems right at a customer site or field location, and the Mobilcom Van can interconnect state of the art Interoperable technology with the existing systems in place to test and evaluate several potential courses of action to deploy new interoperable systems.


The van is a 4X4 all terrain vehicle with a suite of communications equipment and systems. It has 11 rooftop antennas and a separate battery and DC/AC power system for all the on-board equipment


The front cabin has a console with several radios in the 50, 150. 450 and 800 MHz bands. These radios can be operated by the driver or be directly controlled from the VOIP interoperable switch/gateway. The console also has a Siren & Lights controller, and a laptop on an adjustable paltform


The computers have shock-proof mounted hard drives and the LCD panels are High-Brighness displays readable in direct sunlight. Extensible articulated arms permit the operation of any of the PCs from the seats, through the windows or outside the van


The Rear Cabin has a multi-purpose console for radios and other equipment, and a remote "Mirror" PC to control the Command PC in the Middle Cabin. Several hand held conventional and VOIP radios are used in the field

  • Four on-board vehicle radios in the 50, 150, 450 and 800 MHz bands, conventional and trunked

  • Eleven roof-top antennas for radios and other sub-systems

  • Four hand held radios in the 50, 150, 450 and 800 MHz bands, conventional and trunked

  • Six Voice over IP radios using open standards H.323 communications and operating on 2.4 GHz frequency hopping wireless LAN band

  • Voice over IP 2/4 wire interoperable gateway for radios and PBX telephone system for on-board and wireless VOIP radio phones in the field. It links radios between them, with VOIP phones, on board wired phones and to/from remote users with DTMF phones via secure satellite links. It has special 4 wire interfaces from VOIP switch to each radio

  • Three on-board computers, one removable laptop for driver and two high power PCs as workstations in middle cabin

  • One secure computing network links all the equipment in the front, middle and rear cabins, and field equipment connected through a Triple-AES encrypted VPN over a Wireless LAN

  • On-Board Multimedia Desktop PC with high-brightness LCD display and keyboard on articulated telescopic arm, used as Multimedia with video tuner and video camera input to capture, store, process and distribute video in real time, in multiple formats and with various rates of compression. Also used to capture, store, process and distribute images from 5 megapixel digital camera

  • On-Board Command Desktop PC with high-brightness LCD display and keyboard on articulated telescopic arm for Command and Control, operations, planning and configuration of several on-board systems. GPS receiver used to provide fix on actual position of vehicle at all times for mapping and other radio or satellite programming functions requiring precise position information, this PC has a remote mirror PC workstation in the rear cabin to operate the Command PC directly from the tailgate area

  • On-Board Navigator Laptop PC mounted on adjustable height, swivel-extensible platform between front seats, used mainly for navigation and data communications on the road, with separate and detachable hand-held GPS receiver that can be carried by field staff on foot with no need for a

  • Field computers connected through secure network and encrypted Wireless LAN include several Sony, Hewlett Packard and Ipaq hand-held computers to set up several remote workstations, fixed or mobile

  • Several Secure Wireless LAN bridges to extend the vehicle's LAN to remote field workstations

  • On-board 30" high, 19 inch equipment rack (16U) with spare room to add more equipment if required, mounted in the middle cabin

  • Two continuous duty power converters from 12 V DC to 120 V AC, one 600 Watts pure sinus wave and one 1,000 watts modified square wave

  • Separate 12 V DC power system with its own battery to operate all the on-board sub systems separately from the main vehicle power system

  • Inmarsat M-4 Satcom Terminal, 64 Kb/s voice, data and ISDN

  • Globalstar FAU-200 Voice telephone terminal

  • Globalstar 1600 hand held terminal with car kit, for data traffic only

  • Direcway satcom terminal, not presently installed

  • SPRINT 1xRTT 100 Kb/s Wireless Access modem

  • Verizon 1xRTT 100 Kb/s Wireless Access modem

  • Six VPN appliances to set up secure networks using triple-AES

  • Secure 2.4 GHz Frequency Hopping industrial Wireless LAN

  • Several WLAN cards for external laptops and other equipment

  • Semi-professional digital video camera Sony DCR-VX1000

  • Remotely controlled Panasonic digital video camera

  • Five megapixel semi-professional digital still camera Sony DSC-F707

  • Rack mounted c olor printer and 300 dpi color scanner

  • Vehicle has an work area in middle cabin , where the middle row of seats was removed to install an equipment rack and two PCs on articulated arms

  • Three persons can travel in the middle cabin, two can comfortably work there for an entire eight hour shift, while the vehicle is moving or stationary

  • The front cabin has a center console between the bucket seats with several radios and a laptop. They can be operated by the driver or passenger.

  • The rear cabin has a small equipment console for radios or other equipment, access to roof-top antennas and a remote PC display and keyboard to operate the Command PC in the middle cabin

  • There are three on-board DTMF phones, each with its own number, located in the front cabin, middle cabin and rear cabin. These phones use the VOIP switch to communicate with any of the radios or WLAN phone sub systems, and to make and receive calls anywhere using the Globalstar always on telephone terminal connected as a central office line to the VOIP switch/PBX.

Mobilcom Van Block Diagram

Keywords: Mobile Computing, Mobile Radio, Radio Systems, Voice Over, Voice over IP

Other products and services from Interopradio


InteropRadio Products

It contains radios and interoperable equipment to link multiple agencies radio systems between them and to/from other sub-systems such as the on board VOIP PBX telephone system and the remote access via satellite providing a bi-directional gateway to and from private and public switched telephone networks.