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 100 of 148
4.9.3. VHF Amplifier Shelf 80-301409 Specification
Parameter Specification
Downlink
Downlink Passband 154.0 to 161.5MHz
Maximun gain 30dB
Gain Adjustment 0 to 30dB in 2dB steps
1dB Compression Point (P1dB) +34.0dBm
ALC setting 1dB below P1dB
3
rd
Order Intercept point +45.0dBm
Uplink
Uplink Passband 155.5 – 161.0MHz
Maximun gain 30dB
Gain Adjustment 0 to 30dB in 2dB steps
1dB Compression Point (P1dB) +34.0dBm
ALC setting +27dBm
3
rd
Order Intercept point +45.0dBm
Noise Figure < 10dB
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
4.9.4. VHF Amplifier Shelf 80-301409 Illustrations
4.9.4.1. Front View
A Green LED “Power On”
B Red LED “Alarm” VHF Uplink path
C Red LED “Alarm” VHF Downlink path