Cover Letter (Mar 15, 2000)

0120-EX-ST-2000 Text Documents

Advanced Navigation & Positioning Corp.

2000-03-28ELS_33943

                                                                                     020EX51— ZI0W
                                 ADVANCED NAVIGATION & POSITIONING CORP.
                                 P.O. Box 838 *« Hood River, Oregon 97031 « Tel (541) 386—1747 * Fax (541) 386—2124




March 15, 2000


Federal Communications Commission
Experimental Radio Service
PO Box 358320
Pittsburgh, PA 1521—5320


ANPC, under FAA contract (contract number DTFAQ1—99—C—00054) continues to test and evaluate the Transponder
Landing System in Watertown WI. Currently, the system is operating under authorization provided by an STA
dated 2/9/00 (File #: 0038—EX—ST—2000; Call Sign: WAIXGF; expires 8/9/00). Due to an updated analysis of the
output EIRP, and analysis work by the FAA spectrum management office, ANPC is requesting changes to the
authorized power levels per the information below. If a new STA is required, we request that it extend for a 180
day period to allow continued system testing. Attached is a copy of the current STA. All special conditions on the
current STA are still applicable.


Antenna patterns have been submitted with the previous request that led to the current STA, and are therefore not
included herein. If more technical information is required, please call ANPC customer services manager Fred Conn
at (541) 386—1747.

The Following is a summary of the frequency use request:

Location of Station :    Watertown, WI       NL 43° 09‘ 54"         WL 88° 43° 39"       Runway heading 05

Frequency                  Power (EIRP, dBm)            Emission Designator     Signal Name
108.35                              32                  6KO0A9W                 Localizer
333.95                              40                  300HAIN                 Glide Slope
1030.0                              62.3                6MOOMID                 Interrogation
1090.0                              40.3                6GMOOMID                AOA Calibration


Thank you for your time and attention in this matter.

Sincerely,




   Afl' Zuwv ic

Mark Zanmiller
Director, hardware engineering

ANPC—20064—FC—MZ



Document Created: 2001-08-01 12:41:32
Document Modified: 2001-08-01 12:41:32

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