Tuner (radio)

（重定向自FM Tuner）

Opened VHF/UHF tuner of a television set. The antenna connector is on the right.

Inductively coupled crystal radio receiver

A tuner is a subsystem that receives radio frequency (RF) transmissions like radio broadcasts and converts the selected carrier frequency and its associated bandwidth into a fixed frequency that is suitable for further processing, usually because a lower frequency is used on the output. Broadcast FM/AM transmissions usually feed this intermediate frequency (IF) directly into a demodulator that convert the radio signal into audio-frequency signals that can be fed into an amplifier to drive a loudspeaker. More complex transmissions like PAL/NTSC (TV), DAB (digital radio), DVB-T/DVB-S/DVB-C (digital TV) etc. uses a wider frequency bandwidth, often with several subcarriers. These are transmitted inside the receiver as an intermediate frequency (IF). The next step is usually either to process subcarriers like real radio transmissions or to sample the whole bandwidth with A/D at a rate faster than the nyquist rate that is at least 2 times the IF frequency.

词汇	FM Tuner
分类	英语词汇英语翻译词典
释义	FM Tuner 原声例句 2007 ESLPod It comes with an FM tuner, a built-in battery charger, and good quality headphones. 它配有 FM 调谐器、内置电池充电器和优质耳机。英语百科 Tuner (radio) （重定向自FM Tuner） A tuner is a subsystem that receives radio frequency (RF) transmissions like radio broadcasts and converts the selected carrier frequency and its associated bandwidth into a fixed frequency that is suitable for further processing, usually because a lower frequency is used on the output. Broadcast FM/AM transmissions usually feed this intermediate frequency (IF) directly into a demodulator that convert the radio signal into audio-frequency signals that can be fed into an amplifier to drive a loudspeaker. More complex transmissions like PAL/NTSC (TV), DAB (digital radio), DVB-T/DVB-S/DVB-C (digital TV) etc. uses a wider frequency bandwidth, often with several subcarriers. These are transmitted inside the receiver as an intermediate frequency (IF). The next step is usually either to process subcarriers like real radio transmissions or to sample the whole bandwidth with A/D at a rate faster than the nyquist rate that is at least 2 times the IF frequency.
随便看	Dogs that put up many hares kill none. dog stick dog stiffener Dog stinkhorn dog stinkhorns dogstones Dogstooth dogstooth check dogstooth checks dog stopper dog strop dog style Dog tag Dogtags Dog Tags Dogtail dog tail hair Dog tapeworm Dog tapeworm infection Dog team Dog teeth Dogteeth dog tent dog testes and penis Dog Testis and Penis 娱乐圈情感励志文案是什么意思央视最美情感语录是什么意思情感依靠文案短句图片是什么意思重庆情感语录文案是什么意思快窒息了文案情感句子图片是什么意思阿兰情感语录彝族是什么意思治愈情感旅行文案句子是什么意思伤感签名情感语录是什么意思古文骂人语录情感文案句子是什么意思回国躲避疫情感悟句子简短是什么意思 pid的情书是什么意思超越平凡文案爱情感悟语录是什么意思忘了没有情感文案是什么意思不辜负生活情感文案是什么意思挽留情书男生是什么意思男人出轨了妻子怎么处理最好男人出轨的原因是什么老公出轨了怎么办?妻子聪明的做法发现老公和女下属出轨怎么办男人背叛后，这 3 种原配最易吃亏男人为什么打死不承认出轨男人为什么会出轨的真实原因孩子说自己是双性恋怎么办女朋友和前夫有联系怎么办老婆出轨要离婚不离家怎么办想谈恋爱又怕谈恋爱是什么心理不知道怎么处理和情人的关系怎么办异地恋女朋友要分手怎么挽回男朋友一直冷战不说话怎么办老婆出轨了初恋我该怎么办得寸进尺效应得意忘言得意忘象得胜仪式循序渐进循序渐进讯问法循循善诱循环人格循环式多类题测验循环提问微动作微型教学微差计时器微波生理效应微波着陆系统 400作文范文，高分秘诀与实战指导高中作文题目大全：高考作文题型分类与应试策略初中作文素材大全，写作灵感宝库-高分范文解析高中作文题目大全：议论文+记叙文+高考热点全解析六年级作文范文解析：高分写作技巧与结构模板中考满分作文范文800字：考场写作的底层逻辑解析故事作文范文写作技巧与优秀案例解析高中作文范文解析：写作技巧与提升策略深度指南四年级必备奥数公式大全，让孩子轻松掌握数学奥赛技巧 Excel表格计算公式大全-详细解析与实例初中数学中如何辨认三角函数公式的完整指南如何使用三角函数公式优化广告效果六年级数学公式大全：帮助孩子轻松掌握数学要点如何使用排列三排列五公式提高中奖概率三年级上学期数学公式全解析，拯救你的小学数学难题！