Incoming generated [Feb 5 2013]

0886-EX-ST-2012 Correspondence

L-3 Communications Datron Advanced Technologies

2013-02-05ELS_133259

From: Mark Ingerson

To: Behnam Ghaffari
Date: February 05, 2013

Subject: FCC File No. 0886-EX-ST-2012
----------------------------------------------------------------------------------------------------------------
Message:

Hi,

The 6.3 MW ERP is a requirement for system-internal IM and interference testing. This testing is
required before the antenna system is disassembled and shipped to the customer site.

This power level will only be used for 5 minutes for each test, for a total of 6 tests. These 6 tests of 5
minutes each will be performed over a 3 week period.

The ERP is high because this is a 13-meter dish, yet it will be pointed vertically, 90-degrees from the
horizon. The half-power beam width will be only 0.73 degrees. We feel that the pointing direction, beam
narrowness, band narrowness (CW), and the brief and limited transmission durations do not present an
opportunity for perceived RF interference in the vicinity of the antenna.

Thank you for your consideration,

Mark Ingerson
Microwave Engineering Manager
L-3 Communications Corporation
Datron Advanced Technologies Division
(805) 584-1717 x2146
mark.ingerson@L-3com.com

Document Created: 2013-02-05 14:18:12
Document Modified: 2013-02-05 14:18:12

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