Exhibit

1184-EX-ST-2015 Text Documents

Raytheon IDS

2015-11-03ELS_168904

Raytheon Request for FCC Special Temporary Authorization (STA)
STA File Number: 1184-EX-ST-2015
Date: 11/3/2015

Purpose of Operation:
Frequency authorization is being requested for the period of November 20, 2015 – May 13, 2016
in X-band at frequencies between 9.55 – 9.65 GHz, in order to test prototype radar arrays in a
relevant environment. Outdoor testing, across multiple frequencies as noted above is required to
assess hardware compliance with requirements and to continue research and development. Only
one unit will be tested at a time.

Technical Synopsis:
 Spectrum needed: 9.55 – 9.65 GHz
 Power levels requested: 160 W output power, 953.4 kW ERP (peak)
 Location of use: NTIA-ITS Table Mountain Antenna Fields Site in Boulder, Co and
Raytheon Test Facility in Sudbury, MA
 Direction of radiation: South East with +/- 45 degree scan angle with ability to adjust
mechanically about boresite pointing angle +/- 30 degs)
 Stop buzzer contact: Robert Palumbo, 978-376-7321

STA Explanation:
The Raytheon Low Power Radar 2 (LPR2) array is planned to be tested at the NTIA-ITS Table
Mountain Antenna Fields Site in Boulder, Co, over the period of November 20, 2015 – May 13,
2016. The purpose of this request for Special Temporary Authorization is to test array
compliance to RF performance requirements in a relevant environment. Radar development
testing is planned in parallel at the Raytheon facility in Sudbury, MA.

Test Summary:
The system will transmit pulsed Frequency Modulated (Chirp) waveforms. For all waveform
types, the maximum pulse duration is 55µs and the maximum duty factor is 22%. It is expected
that the radars will be operated periodically during the STA period, < 8 hours a day, Mon - Sat,
for the duration of the STA.

RF Hazard Calculations and Site Safety Measures:
Initial calculations show that general public exposure limits will be reached at a 2.25 meters
distance and occupational exposure limits at 1.0 meter, using formula (7) from FCC OET
Bulletin 65 “Evaluating Compliance with FCC Guidelines for Human Exposure to
Radiofrequency Electromagnetic Fields”, dated August 1997. These calculations take into
account the highest duty factor of 22% and the raster scan pattern utilized by the radar.

Raytheon’s RF safety group is involved in all testing that requires free space radiation 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 FCC’s OET
Bulletin Number 65. An RF Safety Control Plan will be in place for the tests. The Plan will
define the procedures and controls required to prevent personnel exposure to levels which exceed

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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 limits
before testing can proceed.

Raytheon Technical Point of Contact:
Robert A. Palumbo
System Engineering I&T Lead
Phone: 978-376-7321 (cell phone)
Email: Robert_A_Palumbo@raytheon.com

Raytheon Spectrum Manager filing application:
Karen Dyberg
Spectrum Management/RF Safety
Phone: 508-490-2723 (office phone)
Email: Karen.Dyberg@raytheon.com

Period of Use:
Start date: November 20, 2015
End date: May 13, 2016

Equipment Information:
Indicate all equipment that will be involved in this operation.

Transmitter info:
Manufacturer: Raytheon
Model: LPR2
Number of units: 7
Experimental (Y/N): Y

For each frequency band:
RF output at the transmitter terminals:
160 Watts peak

Effective radiated power from the antenna (if pulsed emission, specify peak power):
The effective radiated power from the antenna, including antenna transmit gain and front-end
losses, is 953.4 kW (peak power).

Power * gain = EIRP, gain = 39.9 dBi, EIRP = 160 * 9772.37 = 15635972 W
ERP = EIRP/1.64 = 953402 W or 953.4 kW

Frequency Tolerance:
Less than 0.001 %

List each type of emission separately for each frequency (basically list the emission
designators)

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The LPR2 can tune at 1 MHz intervals within the band(s) authorized. For 9.6 GHz operation,
Ftune is 9.6 GHz.

For each tunable frequency authorized, the LPR2 has the following emission designators:
4M7Q3N - 55μsec FM-Pulsed (LP) with a 2 MHz LFM chirp, centered at Ftune – 1.5 MHz
7M1Q3N - 6μsec FM-Pulsed (SP) with a 2.5 MHz NLFM chirp, centered at Ftune + 1.25 MHz

The transmit waveform chain-pulse sequence transmits a Long Pulse (LP) then a Short Pulse
(SP) for each pulse repetition interval (PRI). The PRI for a pulse sequence is 256 usec (PRF =
3906.25 Hz). The Long Pulse (LP) is 55 usec pulse length using a 2 MHz linear FM chirp at a
22% duty factor. The Short Pulse (SP) is a 6 usec pulse length using a 2.5MHz non-linear FM
chirp at a 2.3% duty factor.

List as appropriate for the type of modulation:
LP: Linear Frequency-Modulated Pulsed (Chirp)
SP: Non-Linear Frequency-Modulated Pulsed (Chirp)

Necessary bandwidth. Explain how determined.
The necessary bandwidth was calculated using the equations in Annex J of the NTIA Manual.

Locations:
1. The outdoor test facility at Table Mountain Antenna Fields Site in Boulder, Co is located
at North 40°07'58", West 105°14'42"and ground elevation of 1698 meters above sea
level. The approximate location of the radar will be within a 2 km radius of the location
stated.
2. The Raytheon facility in Sudbury, MA, is located at North 42°21'57", West 71°25'56"and
ground elevation of 50 meters above sea level. The street address is 528 Boston Post Rd,
Sudbury, MA 01776. The approximate location of the radar will be at North 42°21'57.7",
West 71°25'55".

Is a directional antenna (other than radar used)?
No.

If yes, give the following info: (Although not necessary for this application, additional antenna
detail is provided below)
Width of beam in degrees at the half-power point:
1.98° Azimuth, 2.1° Elevation at boresight
Orientation in horizontal plane:
+/- 45° Electronically Scanned
Orientation in vertical plane:
0° to 30°, relative to ground horizontal, electronically scanned

Will the antenna extend more than 6 meters above ground, or if mounted on an
existing building, will it extend more than 6 meters above the building, or will the
proposed antenna be mounted on an existing structure other than a building?

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Document Created: 2015-11-03 10:53:45
Document Modified: 2015-11-03 10:53:45

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