10.2.4 Preselector Filter Specifications (VHF)
10.2.4 Preselector Filter Specifications (VHF)
Table 10-10
Preselector Filter Specifications (VHF)
Preselector Spec
Limit (VHF)
Typical
136–154 MHz,
Tuning range
150–174 MHz
Bandwidth
4 MHz
Insertion loss
1.3 dB
1.1 dB
VSWR max.
1.9:1
Input Connector
Mini-UHF
Output Connector
Mini-UHF
10.2.5 Duplexer Specifications (700/800 MHz)
Table 10-11
Duplexer Specifications (700/800 MHz)
Duplexer Spec Limit
(700/800 MHz)
Typical
Notes
762–776 MHz,
Tx Frequency range
851–870 MHz
792–806 MHz,
Rx Frequency range
806–825 MHz
Insertion loss Tx
1 dB
0.5 dB
Insertion loss Rx
1 dB
0.6 dB
VSWR max.
1.5:1
1.23:1
Rx isolation
80 dB
85 dB
Tx isolation
80 dB
85 dB
Passive
Intermodulation
–120 dBc
2 x 43 dBm
Antenna Connector
QN
Rx/Tx Output
Connector
QN
6871022P86-A - November 2012
10-9
Содержание GTR 8000
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Страница 80: ...GTR 8000 Base Radio Figure 2 22 Base Radio Backplane Mounting Location 2 20 6871022P86 A November 2012 ...
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