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4G和通信理论
题目内容
RNO不包括
A:A、MTR
B:B、MRR
C:C、NCS
D:D、FAS
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相关问题列表
👉
大容量UPS日常维护中不合适做的是( ;)
[1]
常用的网络测试命令有()
[2]
智能网关内置的软探针可以为远程故障处理提供哪些参考信息
[3]
电力系统中性点接地是属于( ),它是保证电力系统安全可靠运行的重要条件。
[4]
下列PON网络中常用的业务的认证方式有()
[5]
GPON系统上下行波长说法正确的是()
[6]
假设一用户家庭的光猫为HGU型ONU,采用路由模式上网。当用户家庭宽带业务发生故障导致宽带不通时,以下可以采用的检查手段有()
[7]
继电保护的灵敏度用( )表示。
[8]
带宽分配时,单个pon口下所有onu分配的固定带宽之和不能超过()
[9]
5G频段的缺点是
[10]
取消IMS固话呼叫转移可以在话机上操作()
[11]
通信局站交流供电系统应采用()系统。
[12]
拉线的作用是为了在架设导线后能平衡杆塔所承受的导线张力和( ),以防止杆塔倾倒、影响安全正常供电。
[13]
设备编号是一种以( )和阿拉伯数字组合的编号。
[14]
RGC型高压开关柜型号中,用RGCF表示带有负荷开关的母线分段单元。
[15]
在接地保护原则中,以下哪些是正确的()
[16]
在发电机出口端发生短路时,流过发电机的短路电流最大瞬时值可达额定电流的( )倍。
[17]
对于同心式绕组变压器,为了便于( ),通常将低压绕组靠近铁芯柱。
[18]
巡线员应具备有的技术档案和资料()
[19]
六氟化硫(SF6)气体分解的某些成分低氟化合物和低氟氧化物有严重( )。
[20]
RGCV型高压开关柜标准单元设置的设备有真空断路器.可见的三工位开关.母线.观察窗等。
相关考题
👉Whichoneofthefollowingisusedtoplannetworkdimensioning,frequencyplanning,andmakecoverageandinterferencepredictions?
A:Channel Event Recording (CER.
B:TEMS CellPlanner
C:TEst Mobile System (TEMS.
D:Cellular Network Administration (CN
E:Cellular Network Analyzer (CeN
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👉Whichofthefollowingstatementsabouttheurbanmodelisnottrue?
A:Permanent screens, used in the half-screen part of the urban model, are used to define the environment along the calculation profile in a general way and, therefore, the locations of the screens do no
B:Temporary screens, used in the half-screen part of the urban model, are used to describe details of the environment more accurately, near the mobile antenna and, therefore, the locations of the screen
C:The recursive microcell part of the urban model uses something called the illusory distance, which is always longer than or equal to the line-of-sight distanc
D:The resulting path loss from the urban model is obtained by taking the maximum value of the two contributions, calculated by the half-screen and recursive microcell algorithms.
E:Inside a building, the path loss is calculated using a simple building penetration algorithm.
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👉WhatistheminimumrequiredisolationbetweentwoTXantennasatthesamesite?
A:20 dB
B:30 dB
C:40 dB
E:50 dB
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👉WhatisthedatumusedinternallybyaGPSreceivercalled?
A:WGS84
B:RT90
C:Bessel-B?hm
D:Gnomonic
E:Universal Transverse Mercator
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👉WhatisICDM?
A:Intra-Cell Downlink Measurements
B:Interfered Cell Disturbance Matrix
C:Interference Combined with Downlink Measurements
D:Internal Cell Disturbance Measurements
E:Inter Cell Dependency Matrix
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