USA As Represented by Secretary of the Navy

John W Dove

Craig M Armes

Gary L Coldiron, Sr

Bernard E Halter

A tube measurement and calibration system including a network analyzer for measuring tube radio frequency phase, a calibration adapter for calibrating tube radio frequency power and phase, an amplifier for amplifying input radio frequency power into the tube, and a rigid coaxial cable for radio frequency power communication between the tube and the network analyzer and between the calibration adapter and the network analyzer.

Tube measurement and calibration system

The present application discloses a global positioning satellite emulator which produces an L-1 test signal of a particular user selected global positioning satellite for testing the capacity of a GPS receiver to lock on to the signal of the selected satellite and to properly receive, decode and process the signal. The device of the present invention is relatively inexpensive to manufacture, compact and easily connected to facilitate convenient use. The application also discloses the process by which the capacity of a GPS receiver to lock on to the signal of a particular satellite and properly receive, decode and process the signal may be tested.

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Bloomfield, IN, United States of America

John W Dove