Experimentation Description

0156-EX-CN-2019 Applicant Eligibility

Kratos Unmanned Aerial Systems, Inc.

2019-03-08

FCC License Exhibit 2


 From: Harold Prosser

 To:
 Date: March 7, 2019

 Subject: FCC File No. 0156-EX-CN-2019
 ----------------------------------------------------------------------------------------------------------------
 Message:

 1.     Please select the frequency bands that you intend to use during your testing and remove the
 ones you don't need.

 Kratos Response:
 1575.42 MHz – GPS Re-Radiation Kit for use within the factory under a metallic roof. System functional
 test will require the navigation system to acquire the GPS satellites. The facility blocks GPS signals due
 to a metallic roof structure. The re-radiation kit is necessary for the validation process. In addition
 multiple aircraft will be in test and this will allow them all to have access to satellite data.

 1030 MHz – This frequency will be used to interrogate the onboard IFF system of the aircraft. It will be
 used in a factory test configuration when validating the aircraft prior to delivery.

 1090 MHz – Integration, test and operational verification of the aircraft IFF systems is required prior to
 field operation.

 2200-2300 MHz – This frequency band is used for video downlink of flight operations during use.
 Authorization for the frequency is to allow test and integration of the system as part of the final assembly
 and check out of the aircraft.

 3245 MHz – This frequency is used by the aircraft to detect objects in proximity to the vehicle during
 flight. These objects (typically missiles or equivalent) are detected as a method of scoring for when the
 aircraft is used as a target for missile defense training. The use of this frequency will be limited to test
 and integration in the factory as part of the acceptance test process for the aircraft prior to delivery.

 4300 MHz – This frequency is the operational frequency of the installed radar altimeter system for the
 aircraft, which provides a second source of altitude information to the navigation system. Use of this
 frequency will be in a test and integration mode during production test of the aircraft.


 430-450 MHz - These frequencies are for the aircraft’s command and control system.

 978 MHz – ADS-B system is integrated and tested on the aircraft.


 2.        In great details, please explain the purpose of your testing and furthermore using a UAV.

 Kratos Response:
 The testing is for the aircraft checkout before a flight test that will take place at a designated test flight
 facility/range. Part of the aircraft checkout requires verification of the command and control systems,
 navigation systems, and telemetry systems, which operate on the frequencies listed above.

 For the command and control system it will operate at only one channel but Kratos would like to verify a
 few channels to make sure there are will be no issues with the system during flight test. Kratos decided
 that we can minimize the amount of frequencies to three (low, mid and high end of the operating band).

 For the Flight Termination system, it operates from 420 to 430 MHz band but we will only operate at one
 channel frequency. We requested three channels because those are the channels the UAV may operate
 at during flight test at the AFRL test location.
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FCC License Exhibit 2


 For the telemetry system it can operate from 2200 to 2400 MHz. Kratos selected three channels that the
 UAV may be utilized during flight test.

 The main purpose of the aircraft checkout is to mitigate any risk of communication issues/interference
 when this aircraft conducts its flight operations. It allows for troubleshooting the communication systems
 in a controlled laboratory environment at the Kratos test/production facility.


 3.      What are the coordinates (latitude (DD-MM-SS) and longitude (DD-MM-SS)), the maximum
 height and radius of operation of the UAV?

 Kratos Response:
 The coordinates for the location are Oklahoma City, Oklahoma - NL 35-26-13.56; WL 97-38-51.46. The
 maximum height of the test operation should no greater than 15 feet (~5 meters). The operation radius
 will be less than one kilometer from the coordinate location.




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Document Created: 2019-03-08 07:12:06
Document Modified: 2019-03-08 07:12:06

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