User's Manual

Weehawken Tunnel UHF Repeaters
User/Maintenance Handbook
Handbook N.-Weehawken_UHF Issue No:-A
Date:-05/08/05
Page:-
23 of 72
4.2 UHF Simplex Cell Enhancer (50-118201)
4.2.1 UHF Simplex Cell Enhancer Description
The UHF Simplex cell enhancer operates by muting the uplink channel when the downlink
channel is transmitting, and vice-versa so that positive feedback between Tx and Rx
amplifiers is not possible.
4.2.2 UHF Simplex Cell Enhancer Technical Specification
PARAMETER SPECIFICATION
460.3-460.7MHz (Downlink)
Frequency range:
465.3-465.7MHz (Uplink)
Bandwidth: 0.4MHz
Gain: >90dB
Gain Adjustment: 0 - 30dB (in 2dB steps)
Uplink Power: >10.0Watts
Downlink Power: >20.0Watts (x2)
Uplink +40dBm
IP3:
Downlink +54dBm
Downlink AGC gain: 10dB
Downlink AGC level: -22dBm
Uplink AGC gain: 14dB
Uplink AGC level: -8dBm
Noise Figure: <6dB (at maximum gain)
AGC: Fitted in channel modules
VSWR: better than 1.5:1
RF Connectors: N type, female
operational:
-10°C to +55°C
Temperature
range:
storage:
-40°C to +70°C
Case: Alocrom 1200
Heatsinks: Matt black
Handles: Silver anodised alloy
Finish:
Fascia Painted to RAL 7035
1 Downlink amplifiers
2 Uplink amplifiers
Alarms Fitted:
(volt-free contacts/TTL)
3 Each channel module