tifan.net

A personal blog with posts on topics such as decoding a 1970 satellite signal, USPS IMB tracking, nucleic-acid testing business, and replacing fiber ONUs with SFP GPON sticks.

why we picked it

Posts document hands-on technical projects, including decoding the Dongfanghong-1 satellite's 20.009 MHz shortwave signal and replacing a fiber ONU with an SFP GPON stick.

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language: ZH
here since: August 2026