A CTCSS Approach to Mitigate Interference in VHF Cellular Network

Yue Gen Bian; Jing Huan Su; Xue Mei Song

doi:10.4028/www.scientific.net/AMR.926-930.2763

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 926-930A CTCSS Approach to Mitigate Interference in VHF...

A CTCSS Approach to Mitigate Interference in VHF Cellular Network

Abstract:

The VHF radio can overcome line-of-sight transmission by “repeaters,” which pick up weak signals, amplify and retransmit them on a different frequency. However, repeaters can interfere with each other unless they are far enough apart or transmit on sufficiently separated frequencies. In this paper, we propose such a system using the continuous tone-coded squelch system (CTCSS) to mitigate interference problems. This system associates to each repeater a separate sub-audible tone that is transmitted by all users who wish to communicate through that repeater. The repeater responds only to receive signals with its specific tone.

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Periodical:

Advanced Materials Research (Volumes 926-930)

Pages:

2763-2766

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.926-930.2763

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Online since:

May 2014

Authors:

Yue Gen Bian*, Jing Huan Su, Xue Mei Song

Keywords:

Cellular, CTCSS, FDM, Repeater

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* - Corresponding Author

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