DEKOLINK WIRELESS LTD. MINI REPEATER DEKO2408-09 PRODUCT MANUAL
Pub. 308-2005 Rev. 2.00S Proprietary Data Page 1
1. INTRODUCTION
1.1 GENERAL
Dekolink’s Mini Repeaters are high selectivity amplifiers that amplify signals
bi-directionally between base stations and mobile handsets, in cellular and other
wireless systems.
Dekolink’s Mini Repeaters provide high selectivity capability by employing an
advanced up/down conversion and Intermediate Frequency (IF) Surface
Acoustic Waves (SAW) filtering architecture. This advanced architecture
offers distinct advantages over conventional band selective Repeaters.
These Mini Repeaters feature a "plug-and-play" capability for fast response and
immediate solution to your coverage needs. These repeaters can be operational
flexible by adding the optional SAW Switcher which enables to set one of two
of two pre-determined different frequency bands, thus providing two units in
one Repeater.
1.2 APPLICATIONS
Dekolink’s Mini Repeaters are highly suitable for deployment in dense urban
environments, tunnels and other areas where physical structures cause low field
strengths. These Mini Repeaters introduce new system capabilities that enable
a wide variety of applications particularly when adjacent band selectivity and/or
very high spectral purity are required. The Repeaters provide a solution to
situations in which flexible, high quality and high resolution filtering methods
are necessary.
Dekolink’s Mini Repeaters help improve in-building coverage, and can perform
as hole-filler in particular spots in a residence such as parking lots, tunnels, etc.
1.3 DESCRIPTION
Small, lightweight and easy-to-install, this Mini Repeater addresses network
coverage problems quickly and straightforwardly (see Figure 1).
1.3.1 Smart-ALC
The downlink path includes Dekolink’s Smart Automatic Level Control
(Smart-ALC) control algorithm to ensure linear operation of the Repeater. This
feature automatically adjusts the Repeater gain, reducing it in case of over the
limit power output, or boosting it to maintain maximum gain utilization.
The Smart-ALC automatically maintains downlink and uplink gain balance,
this preventing oscillation in case of insufficient isolation. It prevents “cell
coverage shrinking” while maintaining the power amplifier linearity.
Dekolink’s Mini Repeaters comply with relevant standards in accordance with
their application, such as CDMA 2000, FCC, ETSI, etc.
1.3.2 Switchable Bandwidth
The internal SAW Switcher enables to implement the Switchable Bandwidth
option. This function enables more efficient and better adaptability of the
Repeater to your needs. This capability enables you to install the Repeater in
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