Incoming generated [Jan 19 2017]

1697-EX-ST-2016 Correspondence

Georgia Institute of Technology

2017-01-19ELS_186777

Douglas Young

From: Holman, Brian <Brian.Holman@gtri.gatech.edu>
Sent: Thursday, January 19, 2017 10:46 AM
To: Douglas Young
Cc:
Subject: File# 1697-ex-st-2016 Request for Info
Attachments: 1697-ex-st-2016__SGH_WR187_Horiz.pdf; 1697-ex-st-2016__SGH_WR187_Vert.pdf

Reference # is 35315
File # 1697‐ex‐st‐2016

Doug,

In response to your questions regarding our application please see the following attachments.

For the horizontal antenna pattern, 0° on the plot corresponds to 128°N.
For the vertical antenna pattern, 0° on the plot corresponds to the horizon with the 30° peak pattern gain being 30°
below the horizon.

The application contains the worst‐case ERP value using the signal generator maximum output and the peak antenna
gain. After refining our link budget, the signal generator will be operated at a much lower peak output power of
1mW. The geometry of our test setup will also position the antenna to be pointing 30 degrees down from the
horizon. Our peak ERP value on the horizon will be 0.575mW, given our antenna geometry and loss budget between
transmitter and antenna.

Your duty cycle calculations of 50% are correct. If the average power will be too high considering the local FSS received
earth stations nearby, please let us know and we’ll try to revise our test plan to accommodate accordingly.

Thanks,
Brian

‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐
Brian Holman
Research Engineer II
Georgia Tech Research Institute
Sensors and Electromagnetic Applications Lab
Phone: 404‐407‐8727
Brian.Holman@gtri.gatech.edu

1

Document Created: 2017-01-19 11:16:34
Document Modified: 2017-01-19 11:16:34

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