越電離層傳播 trans-inospheric propagation
越區(qū)切換 handover 或 hand-off
越區(qū)切換策略 handover strategy
越區(qū)切換接入突發(fā) handover access burst
越區(qū)切換界限 handover margin
越區(qū)切換執(zhí)行 handover execution
越站干擾 overreach interference
運(yùn)輸試驗(yàn) transport test
運(yùn)算放大器 operational amplifier

Z
散射發(fā)射 spurious emission
散射輸出功率 spurious output power
散射響應(yīng)抗擾性 spurious response immunity
散射響應(yīng)頻率 spurious response frequency
散射窄帶（射頻）分量 spurious narrow-bandwidth (RF) components
再定時 retiming
再起動規(guī)程 restart procedure
再生 regeneration
再生器 regeneration
再生中繼器 regenerative repeater
再生中繼站 regenerative relay station
再現(xiàn)性 reproducibility
在線測試 on-line testing
載波 carrier
載波電話 carrier telephone
載波電話增音機(jī) carrier telephone repeater
載波電話終端機(jī) carrier telephone terminal
載波跌落 carrier drop
載波功率 carrier power
載波恢復(fù) carrier recovery, carrier reinsertion
載波檢測多址 carrier sense multiple access (CSMA)
載波降低度 carrier reduction
載波頻率偏置 carrier frequency offset
載波抑制度 carrier suppression
載干比 carrier-to-interference ratio
載體設(shè)備 vehicle equipment
載躁比 carrier to noise ratio
早期故障期 early fault period
躁聲帶寬 noise bandwidth
躁聲功率 noise power
躁聲溫度 noise temperature
躁聲系數(shù) noise factor, noise figure
躁聲抑制 noise suppression
增量調(diào)制 delta modulation (DM)
增量調(diào)制編碼 delta modulation code
增強(qiáng)型定位報告系統(tǒng) EPLRS
增益控制 gain control
增值業(yè)務(wù) value added service
窄帶發(fā)射 narrowband emission
窄帶干擾 narrowband disturbance
窄帶器件 narrowband device
占機(jī)信號 seizing signal
占機(jī)證實(shí)信號 seizing-acknowledgement signal
占空建立呼叫 on-air-call-set-up
占線前標(biāo) seizure precursor
占線測試 engaged test
占用帶寬 occupied bandwidth
戰(zhàn)略密碼體制 strategic cipher system
戰(zhàn)術(shù)電臺 tactical radio
戰(zhàn)術(shù)密碼體制 tactical cipher system
戰(zhàn)術(shù)通信電子對抗系統(tǒng) tactical communication electronic warfare system
折疊單極天線 folded monopole antenna
折疊偶極天線 folded dipole antenna
折射指數(shù) refractive index
折線編碼律 segmented encoding law
幀 frame
幀定位 frame alignment
幀定位時隙 frame alignment time slot
幀定位信號 frame alignment signal
幀定位恢復(fù)時間 frame alignment recovery time
幀號碼 frame number (FN)
幀失位時間 out-of-frame alignment time
幀同步碼 frame synchronization code
真跡電報 telewriting
真空電子器件 vacuum electron device
真空電容器 vacuum capacitor
陣列天線 array antenna
振蕩 oscillation
振蕩器 oscillator
振動試驗(yàn) vibration test
振幅鍵控 amplitude shift keying (ASK)
振幅壓擴(kuò)單邊帶 amplitude companded SSB (ACSB)
振鈴音 ringing tone
振鳴 howling
整流 rectification
正/零/負(fù)碼速調(diào)整 positive/ zero/ negative justification
正常檢查 normal inspection
正常充電 normal charging
正常突發(fā) normal burst
正反碼 positive and inverse code
正交部分響應(yīng)鍵控 quadrature partial response keying (QPRK)
正交調(diào)幅 quadrature amplitude modulation (QAM)
正交調(diào)幅器 quadrature modulator
正交調(diào)頻 quadrature frequency hopping
正交相干解調(diào)器 quadrature coherent demodulator
正碼速調(diào)整（正脈沖塞入） positive justification (positive pulse stuffing)
正態(tài)分布 normal distribution
正向話終信號 clear-forward signal
支線 branch feeder
直達(dá)線路 direct route
直接波 direct wave