Method of programming a frequency synthesizer and a radio...

Details Method of programming a frequency synthesizer and a radio... Method of programming a frequency synthesizer and a radio...

H - Electricity

03

J

H03J 7/06 (2006.01) H03J 1/00 (2006.01) H03L 7/18 (2006.01) H03L 7/183 (2006.01) H03L 7/197 (2006.01)

Patent

CA 2198487

In order to program the output frequency of a synthesizer such as that of a two-way radio, first the reference oscillator (20) is warped or tuned substantially to one limit of its tuning range. The "N" divisor of the synthesizer divider (13) is then selected to produce a loop output close to the desired loop output frequency. The reference oscillator (20) is then tuned to provide the desired loop output frequency.

Pour programmer la fréquence de sortie d'un synthétiseur tel qu'un synthétiseur pour radio bidirectionnelle, on déforme ou on accorde l'oscillateur de référence (20) sensiblement en fonction d'une limite de la plage d'accord. On sélectionne ensuite le diviseur "N" du diviseur (13) du synthétiseur pour produire une sortie bouclée proche de la fréquence de sortie bouclée voulue. On accorde ensuite l'oscillateur de référence (20) pour produire la fréquence de sortie voulue.

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