船舶移动业务 ship movement service
船上通信电台 on-board communication station ,ship communication station
船用收音机 ship radio
串并变换机 serial to parallel (deserializer)
串并行变换 serial-parallel conversion
串话 crosstalk
垂直方向性图 vertical directivity pattern
唇式传声器 lip microphone
磁屏蔽 magnetic shielding
次级分布线路 secondary distribution link
猝发差错 burst error
猝发点火控制 burst firing control
存储程序控制交换机 stored program controlled switching system

D
大规模集成电路 large scale integrated circuit (LSI)
大信号信躁比 signal-to-noise ratio of strong signal
带成功结果的常规操作 normal operation with successful outcome
带宽 bandwidth
带内导频单边带 pilot tone-in-band single sideband
带内谐波 in-band harmonic
带内信令 in-band signalling
带内躁声 in-band noise
带通滤波器 band-pass filter
带外发射 out-of-band emission
带外功率 out-of-band power
带外衰减 attenuation outside a channel
带外信令 out-band signalling
带状线 stripline
单边带发射 single sideband (SSB) emission
单边带发射机 single side-band (SSB) transmitter
单边带调制 single side band modulation
单边带解调 single side band demodulation
单边带信号发生器 single side band signal generaltor
单端同步 single-ended synchronization
单工、双半工 simplex, halfduplex
单工操作 simplex operation
单工无线电话机 simplex radio telephone
单呼 single call
单频双工 single frequency duplex
单频信令 single frequency signalling
单相对称控制 symmetrical control (single phase)
单相非对称控制 asymmetrical control (single phase)
单向 one-way
单向的 unidirectional
单向控制 unidirectional control
单信道地面和机载无线电分系统 SINCGARS
单信道无绳电话机 single channel cordless telephone
单信号方法 single-signal method
单音 tone
单音脉冲 tone pulse
单音脉冲持续时间 tone pulse duration
单音脉冲的单音频率 tone frequency of tone pulse
单音脉冲上升时间 tone pulse rise time
单音脉冲下降时间 tone pulse decay time
单音制 individual tone system
单元电缆段（中继段） elementary cable section (repeater section)
单元再生段 elementary regenerator section (regenerator section)
单元增音段，单元中继段 elementary repeater section
当被呼移动用户不回答时的呼叫转移 call forwarding on no reply (CFNRy)
当被呼移动用户忙时的呼叫转 calling forwarding on mobile subscriber busy (CFB)
当漫游到原籍PLMN国家以外时禁止所有入呼 barring of incoming calls when roaming outside the home PLMN country (BIC-Roam)
当前服务的基站 current serving BS
当无线信道拥挤时的呼叫转移
calling forward on mobile subscriber not reachable (CENRc)
刀型天线 blade antenna
导频 pilot frequency
导频跌落pilot fall down
倒L型天线 inverted-L antenna
等步的 isochronous
等幅电报 continuous wave telegraph
等权网（互同步网） democratic network (mutually synchronized network)
等效比特率 equivalent bit rate
等效地球半径 equivalent earth radius
等效二进制数 equivalent binary content
等效全向辐射功率 equivalent isotropically radiated power (e. i. r. p.)
等效卫星线路躁声温度 equivalent satellite link noise temperature
低轨道卫星系统 LEO satellite mobile communication system
低气压实验 low atmospheric pressure test
低时延码激励线性预测编码 low delay CELP (LD-CELP)
低通滤波器 low pass filter
低温实验 low temperature test
低躁声放大器 low noise amplifier
地-空路径传播 earth-space path propagation
地-空通信设备 ground/air communication equipment
地波 ground wave
地面连线用户 land line subscriber
地面无线电通信 terrestrial radio communication
地面站（电台） terrestrial station
第N次谐波比 nth harmonic ratio
第二代无绳电话系统 cordless telephone system second generation (CT-2)
第三代移动通信系统 third generation mobile systems
点波束天线 spot beam antenna
点对地区通信 point-area communication
点对点通信 point-point communication

点至点的GSM PLMN连接 point to point GSM PLMN
电报 telegraphy
电报电码 telegraph code
电波衰落 radio wave fading
电池功率 power of battery
电池能量 energy capacity of battery