什么是数码收音机

什么是数码收音机
2025-03-16 04:25:59
推荐回答(3个)
回答1:

收音机分为:机械式指针收音机、模拟数字显示收音机、数字调谐收音机(PL机)、数字解调收音机(DSP机)。只有后两种是数码收音机。机械式指针收音机就不必说了,就是带机械指针的收音机。模拟数字显示收音机是用液晶屏数字模拟显示频率的机械式指针收音机,只显示频率,调谐方式和机械式指针收音机一样。数字调谐收音机(PL机)、数字解调收音机(DSP机)有专门的数字信号处理芯片对模拟调频/调幅广播信号进行数字化转换,进行数字处理和谐调,可以很大程度上提高收音机的灵敏度和选择性(选台更精确,不易串台、飘台)。

一般数字收音机都具有自动搜台和自动存储电台频率的功能。搜好以后可以按上一台,下一台收听预存的频率电台。

回答2:

数码收音机是把模拟信号转换成数字信号来处理的,踏相对比较准确,有追踪功能等等,而且有记忆能力,能保存频道。 也就是电脑上用的收音机
一般的收音机可分为电子收音机和机械收音机,他们的原理是一样的,只不过的操作方式不同,没有数字那么准确,不能保存频道。

回答3:

所谓的数码收音机是指现在用数字显示和数字调谐的收音机。
数字调谐简称数调式,不仅用数字显示电台频率,还用变容二极管替代机械式可变电容器实现了电子调谐,用锁相环频率合成技术,使本机振荡频率非常稳定。

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