Technical Manual
Airbridge BTS3606A CDMA Base Station
System Description
Chapter 7 Technical Specifications
7-3
The BTS3606A supports two types of channel processing boards: CCPM and CECM.
The CCPM supports the CDMA2000 1x protocols, whereas the CECM supports the
CDMA2000 1xEV-DO protocols.
I. CDMA2000 1x capacity
The BTS capacity is given according to the number of sector carriers configured. One
sector carrier can serve about 20 IS95 subscribers or about 40 CDMA2000 1x
subscribers.
The maximum reverse channel capacity of one carrier (three sectors) is 128 channels.
II. CDMA2000 1xEV -DO capacity
The BTS capacity is given according to the number of sector carriers configured. One
sector carrier can serve up to 48 subscribers.
The maximum reverse channel capacity of one carrier (three sectors) is 96 channels.
7.3 Transmitter and Receiver Specifications
This section provides the specifications of the BTS3606A transmitter and receiver at
different bands.
7.3.1 Transmitter and Receiver Specifications at 450 MHz Band
This following lists the BTS3606A transmitter and receiver specifications when the
BTS3606A works at the 450 MHz band.
I. Transmitter specifications
Working band
460 MHz to 467 MHz
Channel bandwidth
1.23 MHz
Channel precision
25 kHz, 20 kHz
Frequency tolerance
Ÿ
!
0.05 ppm
Transmit power
25 W (the maximum value measured at the feeder port on the top of the
cabinet)
II. Receiver specifications
Working band
450 MHz to 457 MHz
Channel bandwidth
1.23 MHz
Channel precision
25 kHz, 20 kHz
Sensitivity of signal receiver
Better than -127 dBm (RC3, main and diversity receiving)
