User Manual

PBL UHF 1 & 2 Air Interface
Maintenance Handbook
H/book Number:-60-055900HBKM
Issue No:-1
Date:-13/02/2003
Page:-18 of 18
3.2.3 UHF TWO to Tunnels 1 & 2 Technical Specification
Frequency Range:
Downlink Channels:
483.0625MHz
483.2875MHz
483.3125MHz
483.5625MHz
Uplink Channels:
486.0625MHz
486.2875MHz
486.3125MHz
486.5625MHz
Band Width:
Downlink :15kHz
Uplink : 25kHz ,486.0625MHz, 486.5625MHz
15kHz ,486.2875MHz, 486.3125MHz
No. of Paths: 2
RF Connector: N type female
RF Impedance:
50Ω
VSWR: Better than 1.5:1
Downlink Gain: 90 dB min
Uplink Gain: 68 dB min
Gain Adjustment: 0 to 30 in 2dB steps
Downlink PA: 20W Class A Linear
Uplink PA: 20W Class A Linear
Duplexer UP/DN Isolation: >80 dB
Passband Ripple: <±1.5 dB
Noise Figure: Downlink <5 dB at maximum gain
Noise Figure: Uplink <12dB at maximum gain
In-Band Spurious:
Better than –13dBm downlink
Better than –13dBm uplink
(measure with 30KHz BW with max gain setting)
Out-band Spurious up to 3GHz: Better than –90dBc