求助双工器的技术指标，有点不懂
05-08
最近得一双工器指标如下：
DUPLEXER REQUIREMENTS
GENERAL CHARACTERISTICS
FREQUENCY RANGE : 400Mhz
FREQUENCY SEPARATION : 5Mhz or More
ELECTRICAL SPECS
PARAMETERS FIGURES
Maximum Power Input ( Continuous ) 250 Watts
Insertion Loss ( Tx & Rx To Antenna ) 1.0 dB
TX Noise Suppression at RX Freq. 90 dB
RX Attenuation at TX Freq. 90 dB
Isolation ( min ) TX to RX
5Mhz separation 75 dB
3Mhz separation 60 dB
Max. VSWR -1.2 to 1
Temperature Range 30 to 70 deg. C
MECHANICAL SPECS
PARAMETERS FIGURES
Number of Cavities 4
Cavity Diameter 4
Dimension in (cm) HxWxD 5.25 x 19 x 10.5 (13.3 x 48 x 26.7 )
MOUNTING 19 inches panel
Connector Termination Type N Female
请问此双工器上行和下行频率范围多少?如何计算的?谢谢
DUPLEXER REQUIREMENTS
GENERAL CHARACTERISTICS
FREQUENCY RANGE : 400Mhz
FREQUENCY SEPARATION : 5Mhz or More
ELECTRICAL SPECS
PARAMETERS FIGURES
Maximum Power Input ( Continuous ) 250 Watts
Insertion Loss ( Tx & Rx To Antenna ) 1.0 dB
TX Noise Suppression at RX Freq. 90 dB
RX Attenuation at TX Freq. 90 dB
Isolation ( min ) TX to RX
5Mhz separation 75 dB
3Mhz separation 60 dB
Max. VSWR -1.2 to 1
Temperature Range 30 to 70 deg. C
MECHANICAL SPECS
PARAMETERS FIGURES
Number of Cavities 4
Cavity Diameter 4
Dimension in (cm) HxWxD 5.25 x 19 x 10.5 (13.3 x 48 x 26.7 )
MOUNTING 19 inches panel
Connector Termination Type N Female
请问此双工器上行和下行频率范围多少?如何计算的?谢谢
可能是0-400MHz 每路至少隔5MHz
未给出中心频率，不能计算出具体的上下行频率。
顺便问哈，说明什么是上下行频率啊
本来就没有给出上下行中心频率
学习
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