Browse Prior Art Database

PL TRANSMISSION IN SIMULCAST SYSTEMS

IP.com Disclosure Number: IPCOM000008336D
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2002-Jun-06

Publishing Venue

Motorola

Related People

Authors:
Seiler Reinhard

Abstract

This paper describes a method for Private Line (PL), otherwise known as continuous Tone Carrier Squelch System (CTCSS) tone transmission in simulcast RF communication networks, that offers advantages over existing transmissions in that tones are transmitted over normal voice grade leased land lines with an audio frequency range of 300-3400 Hz.