Comtech EF Data MetaCarrier MCDD-100, Инструкция по установке и эксплуатации

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Chapter 1. INTRODUCTION
1.1 Overview
Figure 1-1. MCDD-100 MetaCarrier
®
Detection Device
Comtech EF Data’s MCDD-100 MetaCarrier® Detection Device (Figure 1-1) is a patent pending
carrier identification (CID) product that uses spread spectrum technology to decode an
embedded unique carrier identification sequence for a transmission carrier.
The MCDD-100 is combined with the MCED-100 MetaCarrier® Embedding Device to provide a
complete MetaCarrier embedding and decoding product. In a typical network, there can be as
many MCED-100s as there are modulating devices, and a smaller number of MCDD-100s to
verify the presence of the MetaCarrier on each carrier. In an interference condition, the
MCDD-100 may be used to decode the MetaCarrier of an interfering carrier that may not be part
of one’s own transmission network, as long as the interfering carrier has a MetaCarrier
embedded.
The MCDD-100 is unique in that it operates in both non-interfered and interfered conditions. By
using the MetaCarrier concept, a low-speed data sequence containing information about the
transmission carrier is spread using Direct Sequence Spread Spectrum (DSSS), and then
combined with the transmission “desired” carrier to produce a composite carrier with an
embedded CID.
The MCDD-100 supports an L-Band (950 MHz to 2150 MHz) or IF (50 MHz to 180 MHz) input for
decoding and demodulating the MetaCarrier sequence for a carrier that contains the Comtech
EF Data embedded CID.
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Sect. 1.3 MCDD-100 Features
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Sect. 1.4 MCDD-100 Specifications