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Intro

Watchtower

Flag

Alex

Telegraph

Telegraph

Telegraph

Telegraph

Telegraph

Telegraph

Telegraph

Telegraph

Telegraph

Telegraph

Telegraph

SoS

Telegraph

Telegraph

CanPhone

Meucci

Bell

Component

PhoneSet

PhonePole

PhonePole

PhonePole

Switchboard

Evolution

Trans

Media

Media

電阻

RF

電容

Twist

線材等級

Cable

Optics

Optics

傳輸線特性

Mwave

傳輸損耗

infrared

Media

EE

寄生電容

Coil

Signal

SinWave

Voice

dB

dBm

Gain

SN

Noise

BW

MOS

Signal

WhatFreq

WhyFreq

Fourier

Fourier

Fourier

Fourier

Fourier

Fourier

Harmonic

Fourier

Fourier

Fourier

Fourier

Fourier

Fourier

Fourier

Filter

訊號傳送

Impair

CrossTalk

Echo

EchoCan

Echo

EchoCan

訊號傳送

Noise

Noise

基頻寬頻

BaseBroad

AMFM

Modulate

Modulate

Modulate

寬頻傳輸

Eye

Acronym

Acronym

Acronym

Acronym

Acronym

頻寬

Shannon

Bandwidth

頻寬需求

頻寬規格

頻寬速度

頻寬速度

頻寬速度

距離

距離

Multiplex

Multiplex

TDM

TDM

SyncAsyn

Spectrum

Spectrum

Spectrum

電話品質

MOS

Quality

Delay

Voice

A2D

Sampling

Nyquist

Sampling

qerror

PAM

PCM

資料編碼

TeleService

NetManage

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