Special Temporary Authority application - Applicant Name
Name of Applicant:
Rincon Research Corporation
Special Temporary Authority application - Best Contact
First Name:
Evan
Last Name:
Iverson
Phone Number:
520-519-4453
Title:
Chief Scientist
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:
2012-09-25 00:00:00.0
Signature of Applicant (Authorized person filing form):
Evan Iverson
Title of Applicant (if any):
Chief Scientist
Special Temporary Authority application - Explanation
Please explain in the area below why an STA is necessary:
An STA is necessary to allow a series of highly accurate HF ionospheric propagation measurements to be made in order to characterize time-varying effects that limit the ability to geolocate uncooperative HF transmitters. The collected RF data is required to develop a parametric channel model that can be used to correct for variability in time of arrival and frequency of arrival for signals associated with near-vertical-incident-skywave (NVIS) communication networks. Current ionospheric sounding systems (e.g., Digisondes) do not provide this unique type of information.
Special Temporary Authority application - Information
Callsign:
WF9XQI
Class of Station:
FX
Nature of Service:
Experimental
Special Temporary Authority application - Initial values - Purpose of Operation
Please explain the purpose of operation:
The purpose of this operation is to make a series of phase-coherent measurements to characterize the temporal variability associated wth NVIS propagation channels. The measurements will be made using a low-power (<100W) HF transmitter and a digitizing receiver that are phase locked and have precision time synchroniation through the use of highly accurate GPS time/frequency references. This will provide long-dwell, coherent oblique ionospheric sounding at a single frequency selected to be just below the F2 critical frequency. The transmitter will drive an NVIS antenna with vertical directivity and transmit a phase-coded signal designed to provide very high processing gain, thereby minimizing the required transmitting power. For each measurment trial, a single frequency of operation will need to be selected that is roughly in the range of 75% to 98% of the local critical frequency (foF2). Therefore, a set of authorized frequencies is desired that spans the range from ~4 MHz to ~12 MHz, with approximately 2 frequencies in each 1-MHz segment of this range (~16 frequencies total). Operations are planned for daylight hours and each measurement trial is expected to last less than 30 minutes, with no more than 2-3 trials per day. Trials are expected to occur only a few days per week on a sporadic basis througout the duration of the STA.
Special Temporary Authority application - Initial values - Requested Period of Operation
Operation Start Date:
10/15/2012
Special Temporary Authority application - Manufacturer
Equipment 1 Experimental
Yes
Equipment 1 Manufacturer
Rincon Research Corporation
Equipment 1 Model Number
HF Coherent E1
Equipment 1 No. Of Units
1
Equipment 2 Experimental
Yes
Equipment 2 Manufacturer
Rincon Research Corporation
Equipment 2 Model Number
NVIS Antenna E1
Equipment 2 No. Of Units
1
Equipment 3 Experimental
No
Equipment 3 Manufacturer
Rincon Research Corporation
Equipment 3 Model Number
HF Coherent E1
Equipment 3 No. Of Units
1
Special Temporary Authority application - Purpose of Operation
Please explain the purpose of operation:
To make a series of phase-coherent measurements to characterize the temporal variability associated wth NVIS propagation channels. The purpose of this operation is to make a series of phase-coherent measurements to characterize the temporal variability associated wth NVIS propagation channels. The measurements will be made using a low-power (<100W) HF transmitter and a digitizing receiver that are phase locked and have precision time synchroniation through the use of highly accurate GPS time/frequency references. This will provide long-dwell, coherent oblique ionospheric sounding at a single frequency selected to be just below the F2 critical frequency. The transmitter will drive an NVIS antenna with vertical directivity and transmit a phase-coded signal designed to provide very high processing gain, thereby minimizing the required transmitting power. For each measurment trial, a single frequency of operation will need to be selected that is roughly in the range of 75% to 98% of the local critical frequency (foF2). Therefore, a set of authorized frequencies is desired that spans the range from ~4 MHz to ~12 MHz, with approximately 2 frequencies in each 1-MHz segment of this range (~16 frequencies total). Operations are planned for daylight hours and each measurement trial is expected to last less than 30 minutes, with no more than 2-3 trials per day. Trials are expected to occur only a few days per week on a sporadic basis througout the duration of the STA.
Special Temporary Authority application - Requested Period of Operation