User's Manual

Two Channel 400MHz Cell Enhancer
User Handbook
Handbook N.-50-128501HBK Issue No:-A
Date:-12/08/2005
Page:-
12 of 39
3. SPECIFICATIONS
3.1 Description
See section 2.
3.2 Electrical Specification
PARAMETER SPECIFICATION
(Area) downlink: 489.5125-490.9625MHz
(Police) downlink: 496.3375-496.6125MHz
(Area) uplink: 492.5125-493.9625MHz
Frequency bands
(Police) uplink: 499.3375-499.6125MHz
N. of Channels: 2 (one IF select 1.45MHz b/w)
Downlink1 bandwidth: 1.45MHz
Downlink2 bandwidth: 275kHz
Passband Ripple: ±1.5dB
Gain: >90dB
Gain Adjustment: 30dB in 2 dB steps
Uplink ALC setting: +28dBm
Downlink ALC setting: +35dBm
Downlink: 28dBm O/P
Power/Channel
@ Ant. Port
Uplink: 24dBm
O/P 1dB compression @ antenna port: 37.5dBm
Uplink noise: >5dB
operation: -10°C to +55°C Temperature
range
storage: -40°C to +70°C
VSWR: Better than 1.5:1
Impedance: 50
Power Supply Requirement: 110V AC single phase
Alarms fitted (RS232): Amplifiers, PSU, Door, Temperature