Ex 1 Signal Description

0443-EX-ST-2001 Text Documents

L3 Communications

2001-11-27ELS_50179

Time Domain Corporation
Experimental STA Request
November 27, 2001
File No. 0443-EX-ST-2001

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: 2001-11-28 07:00:50
Document Modified: 2001-11-28 07:00:50

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