Special Temporary Authority application - Applicant Name
Name of Applicant:
Indiana Institute of Technology
Special Temporary Authority application - Best Contact
First Name:
Albert
Last Name:
Burke
Phone Number:
260-637-1989
Title:
student advisor
Special Temporary Authority application - Certification
Applicant certification
Neither the applicant nor any other party to the application is subject to a denial of Federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. Section 862, because of a conviction for possession or distribution of a controlled substance. The applicant hereby waives any claim to the use of any particular frequency or electromagnetic spectrum as against the regulatory power of the United States because of the prvious use of the same, whether by license or otherwise, and requests authorization in accordance with this application. (See Section 304 of the Communications Act of 1934, as amended.) The applicant acknowledges that all statements made in this application and attached exhibits are considered material representations, and that all the exhibits part hereof and are incorporated herein as if set out in full in this application; undersigned certifies that all statements in this application are true, complete and correct to the best of his/her knowledge and belief and are made in good faith. Applicant certifies that construction of the station would NOT be an action which is likely to have a significant environmental effect. See the Commission's Rules, 47 CFR1.1301-1.1319.
Date:
2005-02-06 00:00:00.0
Signature of Applicant (Authorized person filing form):
Albert G. Burke III
Title of Applicant (if any):
Industry consultant to students
Special Temporary Authority application - Explanation
Please explain in the area below why an STA is necessary:
FCC Part 15 regulations, specifically Part 15, subpart C, section 15.203 requires that antennas used with ISM band ?intentional radiators? must be antennas provided by ?the responsible party?, (we interpret this to mean the manufacturer of the intentional radiator), in order to allow unlicensed operation under Part 15 rules. This STA request asks that an alternate antenna be allowed to be used with a MaxStream (1) 9XTEND 900 MHz frequency hopping spread spectrum RF data modem in support of an Indiana Institute of Technology/Embry-Riddle Aeronautical University rocket launch as described below and in section 5 of this application. The MaxStream (2) modem and antenna will be installed in a rocket, (details of the project being attempted are found in section 5 of this application), that has an airframe circular cross-section of only 4.25 inches. This diameter, (and the dynamics associated with the rocket flight) will not allow use of any of the antennas authorized for use with the MaxStream modem under section 15.203. The rocket is a student built two stage vehicle that is planned to attain an altitude of 75 miles during a 15 minute sub-orbital flight and will reach a velocity, acceleration and (spin stabilized) rotational rate of Mach 5.0, 20 G?s and 8 revolutions per second respectively. Because of the limited inside diameter of the airframe and the significant linear and centripetal accelerations that will be encountered, the project needs to employ a base loaded monopole (less than ¼ wavelength) that is robust enough to survive the launch dynamics. This monopole is intended to have it?s radiating element normal to the long axis of the airframe in order to maximize the radiation pattern on the ground and hence this puts restrictions on the length of the radiating element because of the diameter of the rocket airframe. This base loaded monopole will have a gain of 0 dBi or less along it?s major lobe. (We note that MaxStream?s list of FCC approved antennas for the 9XTEND product in Fixed/Mobile operation allow antennas that exhibit gains not lower than 2.1 dBi, and that in general the FCC requires that the EIRP be +36 dBm or lower. Our proposed use of a base loaded monopole would definitely result in an EIRP of less than +36 dBm, in fact, less than +30 dBm). (1) · MaxStream, Inc. · P.O. Box 1508 · Orem, Utah 84059-1508 · (866) 765-9885 · www.maxstream.net (2) FCC identification for the 9XTEND modem is: OUR-9XTEND
Special Temporary Authority application - Information
Callsign:
WC9XCJ
Class of Station:
MO
Nature of Service:
Experimental
Special Temporary Authority application - Initial values - Purpose of Operation
Please explain the purpose of operation:
Engineering students from the Indiana Institute of Technology (Ft. Wayne, Indiana) and Embry-Riddle Aeronautical University (Daytona Beach, Florida) are designing and building an instrument package and two-stage rocket that is entered in an inter-collegiate competition with other schools to be the first student built rocket to reach outer space (specifically, an altitude of at least 62.5 miles). The performance goals for the rocket are significant (75 miles, mach 5.0, 20 G?s and an 8 RPS spin rate as mentioned previously). The instrument package contains a three axis accelerometer used to measure flight dynamics, a spin rate sensor package, and an onboard GPS receiver that will measure the rockets position and velocity as a function of time throughout the rocket assent and decent. (The rocket flight will be sub-orbital, no part of it will attain orbit). The intent is to telemeter the data (flight dynamics, spin rate and the GPS derived position and velocity information) back to a ground station collocated at the launch site using the MaxStream 900 MHz modem. Prior practice by others have demonstrated that the use of ISM band frequency hopping modems perform well in the amateur rocket telemetry application, and the use of a ready made modem eliminates the need for the student team to have to design and fabricate that part of their system. The launch will be from the U.S. Air Force Cape Canaveral Air Force Station under the auspices of a joint NASA/Air Force launch and safety management team located at that facility. The rocket is planned to attain an altitude of 75 miles and a down range distance of about 20 miles east of the launch point at splash down in the ocean during the 15 minute sub-orbital flight. The GPS derived position and altitude data solution produced by the on-board GPS receiver (telemetered down along with the flight dynamics data) will be used to determine altitude at apogee, and will be used to locate the instrument package location at splashdown. The power supply for the package will have a capacity for a maximum of one hour of operation after which point the batteries will be depleted. Because the launch will utilize Cape Canaveral Air Force Station facilities, it is subservient to the requirements of other launch operations at the Cape, and therefore it?s exact date is subject to the primary launch operations that occur there. Present plans are for a 31 March 2005 launch with 1 April 2005 as the back-up date. Since we realize that the student launch can easily be bumped by other higher priority operations, we are requesting that the STA be approved between the dates of 31 March 2005 and 1 May 2005.
Special Temporary Authority application - Manufacturer
Equipment 1 Experimental
No
Equipment 1 Manufacturer
MaxStream
Equipment 1 Model Number
9XTEND
Equipment 1 No. Of Units
1
Special Temporary Authority application - Purpose of Operation
Please explain the purpose of operation:
Using an alternate antenna with a MaxStream 9XTEND 900 MHz frequency hopping spread spectrum RF data modem in support of an inter-collegiate rocket launch competition. Engineering students from the Indiana Institute of Technology (Ft. Wayne, Indiana) and Embry-Riddle Aeronautical University (Daytona Beach, Florida) are designing and building an instrument package and two-stage rocket that is entered in an inter-collegiate competition with other schools to be the first student built rocket to reach outer space (specifically, an altitude of at least 62.5 miles). The performance goals for the rocket are significant (75 miles, mach 5.0, 20 G?s and an 8 RPS spin rate as mentioned previously). The instrument package contains a three axis accelerometer used to measure flight dynamics, a spin rate sensor package, and an onboard GPS receiver that will measure the rockets position and velocity as a function of time throughout the rocket assent and decent. (The rocket flight will be sub-orbital, no part of it will attain orbit). The intent is to telemeter the data (flight dynamics, spin rate and the GPS derived position and velocity information) back to a ground station collocated at the launch site using the MaxStream 900 MHz modem. Prior practice by others have demonstrated that the use of ISM band frequency hopping modems perform well in the amateur rocket telemetry application, and the use of a ready made modem eliminates the need for the student team to have to design and fabricate that part of their system. The launch will be from the U.S. Air Force Cape Canaveral Air Force Station under the auspices of a joint NASA/Air Force launch and safety management team located at that facility. The rocket is planned to attain an altitude of 75 miles and a down range distance of about 20 miles east of the launch point at splash down in the ocean during the 15 minute sub-orbital flight. The GPS derived position and altitude data solution produced by the on-board GPS receiver (telemetered down along with the flight dynamics data) will be used to determine altitude at apogee, and will be used to locate the instrument package location at splashdown. The power supply for the package will have a capacity for a maximum of one hour of operation after which point the batteries will be depleted. Because the launch will utilize Cape Canaveral Air Force Station facilities, it is subservient to the requirements of other launch operations at the Cape, and therefore it?s exact date is subject to the primary launch operations that occur there. Present plans are for a 31 March 2005 launch with 1 April 2005 as the back-up date. Since we realize that the student launch can easily be bumped by other higher priority operations, we are requesting that the STA be approved between the dates of 31 March 2005 and 1 May 2005.
Special Temporary Authority application - Requested Period of Operation