Watkins-Johnson Company R1910, Руководство пользователя

Страница: 4 / 50

Repeater General Information and Safety Precautions
1-1
CHAPTER 1
GENERAL INFORMATION AND SAFETY PRECAUTIONS
1-1 INTRODUCTION
This manual provides information pertaining to the installation, operation, and maintenance of the
Watkins-Johnson Repeaters, shown in Figure 1-1. The model number represents the type of repeater.
This manual covers the following types of repeaters. The model numbers and letters are defined in
the following example.
Example: R1910CAD-1M is a PCS indoor repeater, with CDMA modulation, using frequency
bands A and D, 1.25mhz bandwidth, with a modem.
Repeater Model Number Repeater Description
R1910 PCS Inbuilding Repeater
R1920 PCS High Power Repeater
R1930 PCS Medium Power Repeater
R1940 PCS Low Power Repeater
R810 Cellular Inbuilding Repeater
R820 Cellular High Power Repeater
Modulation PCS
Frequency
Band
Bandwidth Interface
Option
CDMA = C
TDMA = T
GSM = G AD*
BE*
FC* -1 = 1.25 MHz
-2 = 0.20 MHz
-3 = 5.00 MHz
-4 = 15.0 MHz
-5 = 1.00 MHz
-6 = 4.50 MHz
-7 = 7.00 MHz M= modem
* Specifies dual bands.
** The R810 and R820 cover the entire A or B band