A new frequency agile transmitter combining system for North American cellular

Author

Arnold, Pitt W. ; Seymour, Kenneth J.

Author_Institution

Celwave RF, Phoenix, AZ, USA

fYear

1992

fDate

10-13 May 1992

Firstpage

1024

Abstract

A totally passive yet frequency-agile transmitter combining system is described, which allows each site transmitter to shift to any of the frequencies within its frequency windows, thus allowing instantaneous selection of any of the 416 frequencies within a 12.5-MHz frequency allocation. The system is described and compared with available alternatives with respect to frequency agility, selectivity, DC to RF efficiency, intermodulation rejection, space utilization, and initial cost. Field testing in a nonwireline system in Portland, OR, USA is described, and the adaptability of the system to present and future frequency planning is discussed

Keywords

cellular radio; frequency agility; radio transmitters; 12.5 MHz; DC to RF efficiency; North American cellular; Portland; USA; frequency agile transmitter combining system; frequency agility; frequency planning; frequency shift; frequency windows; initial cost; intermodulation rejection; nonwireline system; passive system; selectivity; site transmitter; space utilization; Band pass filters; Costs; Diversity reception; Engineering management; Frequency; Radio spectrum management; Space stations; Testing; Transmitters; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1992, IEEE 42nd

Conference_Location

Denver, CO

ISSN

1090-3038

Print_ISBN

0-7803-0673-2

Type

conf

DOI

10.1109/VETEC.1992.245252

Filename

245252