空深网 deep space network (DSN)
空闲信道 idle channel
空闲信道检测 idle channel detection
空中交通管制 air traffic control (ATC)
控位卫星 station-keeping satellite
控制台 console
控制系统 control system
控制系统的程序 program of control system
控制系统误差 control system error
控制信道 control channel (CCH)
控制信号 control signal
口令 password
块结束符 end of block (EOB)
块校验规程 block check procedure
快捕带 fast pull-in range
快闪要求 flash request
宽带发射 broadband emission
宽带干扰 broadband disturbance
宽带器件 broadband device
宽带射频功率放大器 wideband radio frequency power amplifier
宽带数据峰值频偏 wideband data peak frequency deviation
宽频段电台 wide band station
扩频 spread spectrum
扩展频谱通信 spread spectrum communication
扩展器 expandor
扩展耗损 spreading loss
扩展卷积码 diffuse convolutional codes

L
来访登记 visitor register
来访位置登记器 visitor location register (VLR)
来访移动用户 visiting mobile subscriber
雷达信标 radar beacon
里达系统 RITA system
连接 connection
连接线识别提供 connected line identification presentation (COLP)
连接线识别限制 connection line identification restriction
连续单音控制静噪制 connected tone-controlled squelch system
连续单音制 continuous individual tone system
连续骚扰 continuous disturbance
连续相位频移键控 continuous phase frequency shift keying (CP-FSK)
连续噪声 continuous noise
联合战术信息分布系统 JTIDS
联网寻呼系统 wide area paging system
链路 link
链路协议 link protocol
链路压扩 linked compression and expansion (lincomprex)
量化 quantizing
量化区间 quantizing interval
量化失真 quantizing distortion
量化失真效率 quantizing distortion efficiency
裂相码 split phase code
邻（信）道选择性 adjacent-channel selectivity
邻道功率 adjacent-channel power
邻信号选择性 adjacent-channel selectivity
临时移动用户识别码 temporary mobile subscriber identity (TMSI)
淋雨试验 rainfall test
零控天线 null-steering antenna
零中频接收机 zero-intermediate frequency receiver
灵敏度 sensitivity
流程图 flowchart
漏码 drop-out
漏同步 missed synchronization
漏泄电缆系统 leaky cable system
漏指令 missing command
陆地电台 land station
陆地移动电台 land mobile station
陆地移动业务 land mobile service
露点试验 dew point test
路径分集 path diversity
滤波器 filter
轮询 roll polling
轮询间隔 polling interval
螺旋滤波器 screwfilter
螺旋天线 helical antenna
逻辑电路 logical circuit
逻辑分析仪 logic analyzer
逻辑门 logic gate
逻辑设计 logic design
逻辑信道 logic channels

M
码 code
码交换 code conversion
码分 code division
码分多址 CDMA, code division multiple access
码分多址蜂窝系统 CDMA cellular system
码分多址个人通讯网 CDMA PCN
码激励线性预测编码 code-excited LPC (CELP)
码书 code book
码速率 bit rate
码速调整（脉冲塞入） justification (pulse stuffing)
码速调整比（塞入比） justification ratio (stuffing ratio)
码元同步 element synchronism
码字 code word
码组 block
脉冲 pulse
脉冲编码，脉码 pulse code
脉冲编码调制（脉码调制） pulse code modulation (PCM)
脉冲编码调制基群 primary PCM group
脉冲编码制 pulse coding system