User Manual

Axell Wireless Limited
Technical Literature
L.A. M.T.A. Remote Sites
Document Number 80-301401HBKM Issue No. 1 Date 13/06/2008 Page 120 of 148
4.11.1. UHF Lowband Amplifier Shelf 80-301410 System Diagram
Drawing Number 80-301490 see section 4.10.1.
4.11.2. UHF Midband Amplifier Shelf 80-301410 Outline Drawing
Drawing Number 80-3014100 see section 4.10.2.
4.11.3. UHF Midband Amplifier Shelf 80-301410 Specification
Parameter Specification
Downlink
Downlink Passband 482.5 to 483.8MHz
Maximun gain 30dB
Gain Adjustment 0 to 30dB in 2dB steps
1dB Compression Point (P1dB) +42.5dBm
ALC setting 1dB below P1dB
3
rd
Order Intercept point +53.5dBm
Uplink
Uplink Passband 485.7 to 486.8MHz
Maximun gain 30dB
Gain Adjustment 0 to 30dB in 2dB steps
1dB Compression Point (P1dB) +36.5dBm
ALC setting +27dBm
3
rd
Order Intercept point +48.0dBm
Noise Figure < 3.0dB
Mechanical Specification
Mechanical 4U 19” Rack Mount
RF Connectors N-Type Female
Alarm Interfaces
Local Alarms to SCADA
Dry Contact with LED Indication per path
Power Supply 24V DC
4.11.4. UHF Lowband Amplifier Shelf 80-301410 Illustrations
4.11.4.1. Front View
A Green LED “Power On”
B Red LED “Alarm” UHF Midband Uplink path
C Red LED “Alarm” UHF Midband Downlink path