Incoming generated [Jun 3, 2009]

0206-EX-ST-2009 Correspondence

BAE Systems Controls Inc.

2009-06-03ELS_98748

From: Robert Newton

To: Leann Nguyen
Date: June 03, 2009

Subject: FCC File# 0206-EX-ST-2009
----------------------------------------------------------------------------------------------------------------
Message:

File No. 0206-EX-ST-2009
EL977036
Ref. No. 8678

Ms. Nguyen:

In response to your inquiry to Mr. Bob Newton today, the following is provided:

Transmit Antenna Characteristics

A. See PDF file titled RevisedExhibit.PDF (sent to you by e-mail directly).

BAE Systems acknowledges that the original Exhibit submitted to the FCC with the application
stated that For the S-band Airborne transmissions (2010-2100 MHz), the antenna will be located on the
aircraft strut, pointing up. In this regard, BAE Systems notes that it has amended the Exhibit to specify
that the 2010-2100 MHz antenna will actually point down for this experiment. See revised Exhibit 1 -
page 2. This clarification should help address potential concerns regarding interference from this
experiment.

B. See PDF file titled TransmitAntenna.PDF (sent to you by e-mail directly)
In the PDF file, the following is demonstrated:

1. Due to:

(i) the fact that the antenna will actually point down from the aircraft strut, and
(ii) the significant shielding resulting from the aircraft wing and fuselage,

- The elevation of the 3 dB beamwidth of the signal in the 2010-2100 MHz band will be
approximately +/- 10° (Azimuth 360°).
- Such configuration and signal characteristics will substantially mitigate stray emissions
upwards.

2. The Output Power of the 2010-2100 MHz transmissions will be 14W. The gain of the
signal will be 5.5 dBi, resulting in an ERP of 48.5W (max).

3. Polarization = Vertical.

Location of Receive Antennas

See PDF titled ReceiveLocations. (sent to you by e-mail directly).

In the PDF file, the following is demonstrated:
The receive antennas for the experiment will be located in 2 possible specific ground locations:

Antenna Registration No. 1 - Hansen Airfield - 34-38-17 N.Lat.; 117-39-59 W.Long. (.5 km radius)

Antenna Registration No. 2 - Alternate Location - 34-40-23 N.Lat.; 117-31-23 W.Long. (1 km radius)

Respectfully submitted.

Jeffrey Rummel
Attorney for BAE Systems Controls Inc.

Document Created: 2009-06-03 16:28:27
Document Modified: 2009-06-03 16:28:27

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