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| The MMS is a mobile monitoring and directional-finding (DF) station installed in a vehicle in one of the following two configurations: |
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• Compact Configuration Including DF and monitoring capabilities in the frequency range of 20 to 3000 MHz, the equipment are powered by the vehicle internal power, and the DF antenna is elevated by expandable pneumatic mast. Usually it is installed in a Toyota Land Cruiser 4x4 vehicle.
• Extended Configuration Including DF and monitoring capabilities with the unique features of: HF DF capabilities, diesel generator on the vehicle for operating the entire system (including air-conditioner) while the engine is not running. Usually it is installed in a Mercedes Standard Sprinter Van vehicle. The baseline MMS performs signals measurements, occupancy measurements and Direction Finding (DF) determinations in V/UHF frequency range (20 MHz to 3000 MHz).As an option, the frequency range of the monitoring tasks can be extended to cover the HF band, and/or extending the DF and monitoring tasks up to SHF band (up to 26.5, or up to 40 GHz).
The MMS can operate while stationary or on the move. It can operate in an urban or rural environment.
The MMS was designed according to the guidelines of ITU-R Spectrum Monitoring Handbook 2003, and with the ITU-R regulations and recommendations. |
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Station MMS Com |
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The MMS can function as a stand-alone station and perform monitoring and DF measurements, including location determination by using “Self-Fix”, or “Homing” capabilities.
The MMS can operate as element in the integrated Spectrum Monitoring System network, including: Control Stations, Fixed Monitoring Stations, and Portable Monitoring Stations, via Cellular link.
The MMS is capable of operating from internal vehicle-supplied power, portable generator, or external (220 VAC) utility power, if available. The vehicle power system allows hot switching between the three sources back and forth, with no interruption in equipment operation.
The MMS can be operated by one operator and a driver. The operator controls and commands all activities and mission assignments via the laptop. While on the move, the operator can perform “homing” via the laptop installed on the car front dashboard.
The MMS software contains its own database, storage capacity and reports utilities required for monitoring and DF missions’ performance, using the National Monitoring System software, specially developed by TES. |
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MMS Functions |
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• Spectrum occupancy measurement and recording.
• Measurements of signal’s parameters (frequency, field strength, bandwidth, and modulation).
• DF based emitter location – DF measurements, fix using self-fix and homing.
• Producing reports to be viewed on-screen, or printed by the printer.
• Recording and playback of received audio of radio communication, including operator’s comments.
• The system administrator can manage the system databases, setup stations, passwords and define the users of the system. |
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