Andrew NBPCS-9002W Channelized Paging Repeater User Manual Exh D Chapter 1
Andrew Corporation Channelized Paging Repeater Exh D Chapter 1
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Contents
Exh D Chapter 1
AE02B-A3659 Rev -- DESCRIPTION
Document use is restricted to that described on cover 1-1
CHAPTER 1
DESCRIPTION
1.1 OVERVIEW
The SelectAmp NBPCS-900-3 bi-directional channelized paging repeater provides selective frequency
amplification of user specified frequencies in the 901-902, 930-931, and 940-941 MHz Narrowband PCS
bands. The unit can be configured with up to three channelizers allowing the user to configure the unit to
suit their needs. The channelizers are available in two versions: a 930 MHz, 12.5 kHz Bandwidth version
intended for POCSAG/FLEX and a 940 MHz, 50 kHz Bandwidth version intended for ReFLEX. Frequency
selection, gain adjustment and fault monitoring is accomplished with monitor and control circuitry and
firmware.
Within this manual, “Forward Channel” refers to the RF signal path from the base station to the pager and
the “Reverse Channel” refers to the RF signal path from the pager to the base station.
1.2 ELECTRICAL SPECIFICATIONS
Table 1-1 below contains the electrical specifications.
Table 1-1 Electrical Specifications
Parameters Specification
Frequency Range Forward (930) = 928 – 932 MHz.
Forward (940) = 938 – 942 MHz.
Reverse = 897 – 903 MHz.
Composite Output Power Forward = 1 Watt.
Reverse = 500 mWatts.
Output 1 dB Compression Point Forward = 4 Watts.
Reverse = 1.3 Watts.
Power Gain
Fwd Channels
Rev Channel
50 to 95 dB nominal, adjustable from front panel.
50 to 85 dB nominal, adjustable from front panel.
Third Order Output IP3 Forward = +51 dBm.
Reverse = +43 dBm.
AE02B-A3659 Rev -- DESCRIPTION
Document use is restricted to that described on cover 1-2
1.2 ELECTRICAL SPECIFICATIONS (CONT.)
Table 1-1 (Cont.) Electrical Specifications
Parameters Specification
Forward 1 dB Bandwidth:
930 MHz, POCSAG/FLEX Channelizer
940 MHz, ReFLEX Channelizer
Reverse 3 dB Bandwidth
12.5 kHz.
50 kHz.
897 – 903 MHz.
Group Delay Forward = ≤ 30µs
Reverse = ≤ 2µs
Adjacent Channel Rejection:
930 MHz, POCSAG/FLEX Channelizer
940 MHz, ReFLEX Channelizer
≥ 30 dB @ Fo ± 12.5 kHz.
≥ 30 dB @ Fo ± 55 kHz.
RF Port Impedance 50 ohms nominal.
Maximum Input Signal Without damage -30 dBm with gain set for minimum on all channels.
AC Input Power 100 to 240 VAC, 50/60 Hz, 3A
¼” x 1¼” 240V 3A SLO-BLOW FUSE
Status Front panel indicators.
Remote Fault Monitoring Contact Closure: Normal = contacts closed (approx 23 Ω).
Fault = contacts open.
AE02B-A3659 Rev -- DESCRIPTION
Document use is restricted to that described on cover 1-3
1.3 MECHANICAL SPECIFICATIONS
Table 1-2 below contains the mechanical specifications.
Table 1-2 Mechanical Specifications
Parameters Specification
Size Amplifier:
Height: 13.3 cm (5.25 inches).
Width: 48.3 cm (19 inches).
Depth: 48.3 cm (19 inches).
Weight Amplifier: 40 lbs (18.2 kg).
Mounting Table top mount (rubber feet included) or
19” Rack Mount (slides optional).
Power Connections AC Power cord supplied with unit.
RF Connections Type N female.
Remote Fault Connection Type RJ-11, Pins 2,3.
1.4 ENVIRONMENTAL SPECIFICATIONS
Table 1-3 below contains the environmental specifications for the Band Selective Amplifier.
Table 1-3 Environmental Specifications
Parameters Specification
Temperature Range (Operating) Operating: 0° to +50°C
Storage: -20° to +70°C.
Humidity Range (Operating) 10% to 90% non-condensing.
Environmental Protection None.
1.5 TECHNICAL ASSISTANCE
Technical assistance on this or any other Andrew product is available 24 hours per day through:
Andrew Customer Service
Telephone: 1-800-255-1479
Fax: 1-972-952-0019