Method to generate different frequency signals in a digital radi

Details Method to generate different frequency signals in a digital radi Method to generate different frequency signals in a digital radi

1994-03-31

1996-05-21

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at same station

With frequency stabilization

455 86, H04B 140

Patent

active

055198856

ABSTRACT:
A method of generating the different frequency signals required in transmission and reception in a digital radio telephone for operation on at least two different frequency bands. According to the method the mixing frequencies (F1, F2) are selected so that from the frequencies obtained as the mixing results it will always be possible to select the intermediate frequencies (IF1, IF2) required in reception and the transmission frequency (FTX) required in transmission for a radio telephone operating on the desired frequency band.

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Daroff, IEEE vol. CE23, Nov. 1977, pp. 518-521.
Wally H. W. Tuttlebee: "Cordless Telecommunications in Europe", May 1990, Springer-Verlag, London, p. 241, line 29-line 44.

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