鎖相環(huán)四相相移鍵控 PLL-QPSK, phased-locked loop quadrature phase shift keying
T
塔臺 tower aeronautical station
特權(quán)（同步）網(wǎng) oligarchic (synchronized) network
特征頻率 characteristic frequency
特種移動通信系統(tǒng) particular mobile communication system
梯形調(diào)制（梯調(diào)） trapezoidal modulation
天波（電離層波） sky wave
天波路徑損耗 sky-wave path loss
天波時延 sky-wave delay
天電 atmospherics
天然氣候試驗(yàn) natural climate test
天線 antenna (aerial)
天線波束 beam of an antenna
天線帶寬 bandwidth of an antenna
天線額定電壓 antenna voltage rating
天線額定功率 antenna power rating
天線方向性圖 antenna directivity diagram
天線極化 polarization of an antenna
天線間的隔離度 isolation between antennae
天線匹配裝置 antenna matching device
天線收發(fā)開關(guān) T-R switch
天線增益 antenna gain
天線自動調(diào)諧 antenna automatic tuning
調(diào)度電話 dispatcher telephone system
調(diào)度臺 dispatcher station
調(diào)幅電報(bào) amplitude modulation (AM) telegraph
調(diào)幅電臺 amplitude modulation (AM) station
調(diào)幅度不對稱性 asymmetry of AM envelope
調(diào)幅發(fā)射機(jī) amplitude modulation (AM) transmitter
調(diào)幅躁聲 amplitude modulation (AM) noise
調(diào)諧放大器 tuned amplifier
調(diào)頻 frequency modulation (FM)
調(diào)頻發(fā)射機(jī) frequency modulation (FM) transmitter
調(diào)頻無線電話機(jī) FM radio telephone
調(diào)頻躁聲 frequency-modulation noise
調(diào)相 phase modulation (PM)
調(diào)諧 tuning
調(diào)諧線性 linearity of tuning
調(diào)諧指示器 tuning indicator
調(diào)整碼位（塞入碼位） justifying digit (stuffing digit)
調(diào)整指示碼位（塞入指示碼位） justification service digits
調(diào)制 modulation
調(diào)制交流聲 modulation hum
調(diào)制解調(diào)器 modem
調(diào)制靈敏度 modulation sensitivity
調(diào)制器 modulator
調(diào)制深度 modulation depth
調(diào)制特性 modulation characteristic
調(diào)制限制 modulation limiting
調(diào)制指數(shù) modulation index
跳（電離層傳播） hop (ionospheric propagation)
跳距 skip distance
跳頻 frequency hopping (FH)
跳時 time hopping (TH)
跳周 cycle-skipping
跳周平均時間 cycle-skipping average time
貼片機(jī) chip mounter
鐵路編組站自動化 automation of railway yard
鐵路列車調(diào)度系統(tǒng) railtrain dispatch system
鐵路行車指揮自動化系統(tǒng) automation for railway traffic control
鐵氧體天線 ferrite antenna
停播建立呼叫 off-air call set up
停閃頻率，臨界閃變頻率 flashing frequency, critical flicker frequency
通用移動通信系統(tǒng) universal mobile communication system (UMTS)
通播 announcement call
通斷鍵控 on-off keying (OOK)
通信 communication
通信安全 communication security
通信衛(wèi)星 communication satellite
通信衛(wèi)星覆蓋范圍 communication satellite
通信衛(wèi)星轉(zhuǎn)發(fā)器 communication satellite coverage
通信系統(tǒng)模型 communication system model
通信線路品質(zhì)評分 circuit merit rating
通用個人通信 universal personal telecommunication
通用個人電信號碼 universal personal telecommunication number (UPTN, OTN)
通用平滑調(diào)頻 generalized tamed frequency modulation (GTFM)
同步 synchronization
同步保持時間 synchronization hold-in time
同步帶 hold-in range
同步的 synchronous
同步數(shù)字系列 synchronous digital hierarchy (SDH)
同步通信衛(wèi)星 synchronous communication satellite
同步突發(fā) synchronous burst (SB)
同步網(wǎng) synchronization network
同步衛(wèi)星 synchronous satellite
同步壓擴(kuò) synchronized compression and expansion
同頻（信）道電臺 co-channel station
同時單音順序制 simultaneous tone sequential system
同時單音制 simultaneous tone system
同軸電纜 coaxial cable
同軸電纜載波電話 coaxial cable carrier telephone
同軸線表面轉(zhuǎn)移阻抗 surface transfer impedance of a coaxial line
統(tǒng)計(jì)通信理論 statistical communication
透明帶內(nèi)導(dǎo)頻單邊帶 transparent tone-in-band (TTIB) single sideband
突發(fā) burst
突發(fā)長度 burst length
突發(fā)性 burstiness
突發(fā)業(yè)務(wù) burst traffic
圖文廣播 broadcast videography
圖文視傳 videography