Apparatus, and associated method, for calibrating a device

Details Apparatus, and associated method, for calibrating a device Apparatus, and associated method, for calibrating a device

1997-03-20

1999-02-09

Nelms, David C.

Oscillators

Automatic frequency stabilization using a phase or frequency...

Plural a.f.s. for a single oscillator

331 18, 331 44, H03L 7087

Patent

active

058700013

ABSTRACT:
Apparatus, and an associated method, for calibrating a device responsive to values of a reference signal. The reference signal may be subject to short-term disturbances. In one implementation, a cellular radio base station utilizes a Stratum-2 oscillator to which to phase-lock a base station VCO. Compensation is made for the aging of the Stratum-2 oscillator, thereby to provide a regulation signal causing the VCO to exhibit acceptable short-term and long-term frequency stability characteristics.

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M.E. Costa, J.W. He, A.S. Mann, A.N. Luiten, and D.G. Blair; "Combined Sapphire Oscillator--Hydrogen Maser Frequency Standard"; Electronics Letters, Dec. 8, 1994, vol. 30, No. 25, pp. 2119-2120.

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