Intermediate frequency of radio receiver for broadcast 广播用无线电接收机的中间频率
2.
Intermediate frequency for television receivers 电视接收机用中间频率
3.
Intermediate frequency of fm receivers 调频接收机中间频率
4.
Intermediate frequencies of television 电视中间频率
5.
This converter changes the carrier frequency of a radio signal from rf at the antenna to some intermediate frequency that an analog - to - digital conversion chip can transform into a software - processable format 从天线接收到无线电信号后，这种变频器将其中的载频转换成中间频率，然后类比数位转换晶片再将中间频率转换成可由软体处理的格式。
