H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 17/00 (2006.01) H04B 1/713 (2006.01)
Patent
CA 2172857
A method and apparatus for interactively tuning a transmitter for use in a monitoring station is described. The monitor includes a voltage controlled oscillator producing a radiowave signal for use as a carrier. The voltage used to control the voltage control oscillator is provided by a voltage supply that produces an output voltage corresponding to an input data stream. The tuning station provides test data streams to the voltage supply and monitors the output frequencies of the transmitter to determine when the output frequency of the transmitter is above or below the maximum allowable output frequencies. When data streams corresponding to the maximum and minimum output frequencies are determined, they are stored in a memory in the monitoring station and a complete table of temperature-compensated data is generated based upon typical unit temperature drifts. The entire table is loaded into the monitoring station to provide maximum and minimum data sequences for various operating temperature ranges.
Itron Inc.
Schlumberger Industries Inc.
Smart & Biggar
LandOfFree
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