Application Letter

0357-EX-ST-2008 Text Documents

Proxy Aviation Systems, Inc.

2008-08-05ELS_92455

PROXY AVIATION SYSTEMS
12850 Middlebrook Road
Germantown, MD 20874

August 5, 2008

Federal Communications Commission
Experimental Radio Services
P.O. Box 358320
Pittsburgh, PA 15251-5320

Dear Sir or Madam,

Proxy Aviation Systems (“Proxy”) hereby requests an expedited grant of an
experimental Special Temporary Authority (“STA”) to cover intermittent fixed/base and
airborne mobile experimental testing on frequencies in the L Band, in Maryland, from
August 5, 2008 until January 5, 2009. Proxy Aviation Systems requires the STA in order
to test an Enerdyne Enerlinks II Datalink in a proprietary configuration as part of a non-
contractual test activity project to develop innovative systems for the U.S. military and
other customers.

The proposed airborne mobile experimental operations will be located at and
within 185km of the following three locations:

• Montgomery County Airpark (Montgomery County), Maryland (Lat/Lon: 077-09-
57.6000W/39-10-06.0000N; Elevation 164.29 meters); and

• Frederick Municipal Airport (Frederick County), Maryland (Lat/Lon: 077-22-
27.5000W/39-25-03.3000N; Elevation 92.35 meters); and

• Ocean City Municipal Airport (Worcester County), Maryland (Lat/Lon: 075-07-
26.3000W/38-18-37.6000N; Elevation 3.35 meters)

The airborne mobile operations will be located within a 185 kilometer radius of
the above locations, flying at a maximum altitude of 15000’ AGL, and will utilize an
Enerdyne Enerlinks II Datalink and a 5 dBm omnidirectional antenna mounted on a
Proxy Aviation Systems SkyRaider aircraft (KARI Firefly based). The transmissions will
be at a frequency centered at 1770 MHz, with a peak output power of 20 Watts and a
peak Effective Radiated Power (ERP) of 120 Watts. The modulation will be FSK, and the
Emission Designator will be 8M00F7W.

If necessary, Proxy will coordinate with any government or non-government
incumbents prior to commencing transmissions at 1770 MHz in order to prevent harmful
interference to their operations. In addition, while Proxy requests herein a specific

$frequency at 1770 MHz, Proxy is open to using any frequency in the 1710 to 1850 MHz range for airborne mobile operations. This request is based on a prior experimental STA granted by the FCC to Northrop Grumman Systems Corporation (“NGSC”) for testing in Colorado using the same equipment on their platform. The FCC File Number for that activity is 0459-EX- ST-2007 and call sign is WD9XBZ. Proxy has recently been granted an experimental STA for the uplink portion of this radio link (see File Number 0278-EX-ST-2008, Call Sign WD9XJF); however, we will also need to obtain permission to operate the downlink portion of the radio in the L Band as applied herein in order to commence testing. I certify that I am an authorized employee of Proxy Aviation Systems. Respectfully submitted, Proxy Aviation Systems By: \s\ Larry J. Belella Larry J. Belella Staff Engineer Phone: (301) 515-3149 Email: lbelella@proxyaviation.com$

Document Created: 2008-08-05 15:51:29
Document Modified: 2008-08-05 15:51:29