更多"[单选题]与25kHz频率间隔模式相比，8.33kHz频率间隔模式（）"的相关试题:
[单选题]
当前民航使用频率间隔是25kHz,当R/SXU250A出现以
下哪个告警不影响工作().
A. “Warning01”NORemote
B. “Warning08”FrequRange
C. “Warning18”FrequSpacing
D. “Warning16”TxFilt.Absent
[单选题]
下列____是DTR100工作于8.33kHz频率间隔模式下屏
幕显示的工作频率。
A. 127.105、127.950
B. 127.000、127.950
C. 127.955、127.000
D. 127.950、127.000
[单选题]
某甚高频电台工作频率范围是118MHz～136.975MHz，
该电台可提供25kHz频率间隔的信道总数是____。
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[单选题]GSM-R频道间隔以及上下行双工频率间隔分别为（ ）。
A.5KHZ 45MHZ
B.200KHZ 45MHZ
C.10KHZ 10MHZ
D.200KHZ 25MHZ
[单选题]VHF收发信机的频率间隔为
A. 25kHz
B. 5kHz
C. 50kHz
D. 10kHz
[单选题]TETRA系统的频率间隔是（ ）。
A.25kHz
B.50kHz
C.80kHz
D.45kHz
[填空题]40波DWDM系统的波长间隔是( ) 。等效的频率间隔是100GHz )。
[单选题]GSM-R系统频率间隔为（ ）。
A.20KHZ
B.2KHZ
C.200KHz
D.2000KHZ
[单选题]在Tetra系统中的信道频率间隔为（ ）kHz。
A.12.5
B.25
C.50
D.100
[填空题]Osn8800系统中100G相邻通道的频率间隔是 ( )
[判断题]DWDM和CWDM的区别在于复用波长的频率间隔不同。（ ）
A.正确
B.错误
[多选题]ITU‐T 目前规定WDM 系统各个通路的频率间隔必须为（ ）。
A.50GHz
B.100GHz
C.80GHz
D.50GHz/100GHz的整数倍
