发表于 2005-12-23 10:27:00
手机RF模块一次降频二次降频的基本原理。是否是两频率得相加值和相减值。有具体资料吗？多谢
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手机版|C114 ( 沪ICP备12002291号-1 )|联系大家 |网站地图
GMT+8, 2024-11-17 00:22 , Processed in 0.073786 second(s), 15 queries , Gzip On.
Copyright © 1999-2023 C114 All Rights Reserved
Discuz Licensed