Ex 1 Signal Description

0303-EX-ST-2002 Text Documents

Science Applications International Corporation

2002-08-14ELS_57833

Science Applications International Corporation (SAIC)
Experimental STA Request
08/14/2002
File No. 0303-EX-ST-2002

Exhibit 1
Signal Description

This request seeks authority to demonstrate prototype equipment that uses the “time
modulated” ultra wideband (UWB) technology developed by Time Domain Corporation
(“Time Domain”). The device to be exercised is a PulsON™ Application Demonstrator
(PAD). The PAD is a laboratory evaluation device that is a test device only. Our access
to this device is pursuant to an agreement with an agreement with Time Domain for the
evaluation and development of UWB technology. The PAD is not a device to be
marketed.

This device generates a signal that is pulse position modulated. The position of the
modulated pulse employed by this device varies randomly in time so as to produce a
spectrum that approximates gaussian noise. If an emission designator were to be applied
to this device, Time Domain believes that 2G00PID would be descriptive of the signal as
modulated. If unmodulated for radar applications, the emission designator would be
2G00P0N. The nominal center frequency of the signal is 1.8 to 1.9 GHz. The radiated
power of each device is below the general limits set forth in Part 15. For the purpose of
this STA, the power spectral density of the device should be specified as < -71.25
dBW/MHz. The total power output from the transmitter is 100 microwatts. The radiated
power of the device is 85 microwatts WIRP (52 microwatts ERP) or less.

The PAD will use an omni-directional Time Domain Diamond dipole antenna. Note that
this antenna has virtually no gain across the spectrum of the transmitted signal, unlike a
classic reference dipole designed.

Document Created: 2002-08-14 14:01:05
Document Modified: 2002-08-14 14:01:05

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