Handbook
Axell Wireless Limited
Technical Literature
WMATA CRCS Redundant Antenna System
General Overview
Document Number 60-228701HBK Issue No. 3 Date 28/05/2010 Page 101 of 114
5.17.2. 16 Ch. DSP U/L Squelch Gate 60-228904 Specification
SPECIFICATION PARAMETER
Uplink
Frequency Range
492.5MHz to 494.0MHz
499.3MHz to 499.7MHz
No. of Channels
16
(1)
Maximum Gain
+43 ±1dB
Passband ripple
≤ ±1.5 dB
ALC Setting All channels ON
-7.5±1dBm
ALC Dynamic Range
>30 dB
Switched attenuator
0dB to 30 dB in 2dB steps ±1dB
In Band Spurious Noise (30kHz B/W)
< -36 dBm @ max. gain
Squelch Level
-90 ±2dBm
Squelch Level
-80 ±2dBm
Squelch Level
-70 ±2dBm
General
Supply Voltage
24V DC
Current consumption
< 1.5 A
Alarm output
Summary volts free dry contact output
(Closed = Normal / Open = Alarm)
pins 7 & 8 - Alarm connector
terminal on External Alarm and
Battery Module J1161030
(1)
Uplink Channels
Channel Number Channel Frequency Channel Bandwidth
14 492.5125 MHz 12.5 kHz
13 492.5375 MHz 12.5 kHz
2 493.7875 MHz 25.0 kHz
12 493.8375 MHz 12.5 kHz
1 493.8625 MHz 12.5 kHz
11 493.8875 MHz 12.5 kHz
10 493.9125 MHz 12.5 kHz
9 493.9625 MHz 25.0 kHz
8 499.3375 MHz 25.0 kHz
3 499.4375 MHz 25.0 kHz
7 499.4875 MHz 12.5 kHz
Paging 499.5125 MHz 12.5 kHz
4 499.5375 MHz 12.5 kHz
6 499.5626 MHz 12.5 kHz
15 499.5875 MHz 12.5 kHz
5 499.6125 MHz 12.5 kHz