Please explain in the area below why an STA is necessary:
The Ground Vehicle Demonstration is planned to be operated at one location: the Raytheon Technical Services Facility in Indianapolis, IN over the period of August 02, 2012 to December 31, 2012. The purpose of this request for Special Temporary Authorization is to demonstrate the maturity of our system concept and technology to the customer.
Test Summary:
An experimental license is required to demonstrate the operation of an MSTAR radar system with a ground vehicle to our customer. This radar was previously operated at Raytheon Indianapolis under STA call sign WF9XFS (file number 0646-EX-ST-2011). This is a new experiment leveraging this previous approved STA for similar application of the radar transmitter. Starting in August 2012, the radar will be used to sense ground targets - vehicles and personnel on Raytheon property per the MSTARs intended design parameters. These radar will be in the operating frequencies of 15.936 GHz to 17.049 GHz. Typical frequency is set at 17.049 GHz with the lowest power settings required for safety and effective operation - again similar to the qualification testing performed under the previous STA.
Formal demonstrations for the customer will be conducted between November and December 2012. The system will operate in two modes. The near range mode uses the .1 microsecond unmodulated pulse while the far range mode uses the 65 bit polyphase Barker coded emission of 6.5 microseconds.
The High power mode is rated at less than 4 Watts transmit power in the Ku Band, (15 -17 GHz). However, High Power measurements are for reference only, and will not be exercised during system testing. Only the Low power mode at 2 Watts will be exercised to create and display ground targets.
During all tests, the MSTAR will be in the low power transmit mode for only the time required to create and display targets at the Map Overlay laptop and the range will be set to 0 to 2.5 km, which is the minimum distance to collect targets. During the remainder of the demonstration tests, the MSTAR will not be in a transmit mode. During normal demonstration testing, the time required to create and display multiple targets is less than two minutes total transmit time. This operation time applies to Indianapolis, IN test facility.
Raytheons RF safety group is involved in this demonstration to ensure that no personnel are subjected to RF power density levels exceeding the Maximum Permissible Exposure (MPE) limits of the Part 1.1310 of the FCC Rules and the guidelines in FCCs OET Bulletin Number 65. Raytheon has a Company Policy and Environmental, Health and Safety Standard which addresses electromagnetic energy exposure control. It is Raytheons policy to ensure that our personnel, the general public and our customers are not exposed to RF levels which exceed applicable standards. To that end, we will use the same RF Safety Plan already in place from the previous STA for the ground vehicle demonstration testing. The RF Safety Plan defines the procedures and controls required to prevent personnel exposure to levels which exceed the MPE. To verify the safety of personnel, an RF survey will be performed at the initial turn-on of the system. All measured levels, where personnel have access, must be below the MPE for uncontrolled environments before testing can proceed.
Raytheon has also evaluated the potential susceptibility of aircraft and Electro-Explosive Devices (EEDs) in or on aircraft during the operation of the radar. The results show that there are no radiation hazards to personnel, aircraft, aircraft equipment or EEDs, during the proposed testing. Additional files are attached to this summary which covers the antena design, test site layout and transmit scan coverage. Test site layout and transmit scan coverage limitations will be addressed at the test facility the radar is expected to be operated in.
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