Sequential (134) GPS

https://chihaukam.blogspot.com/2023/10/i-remember-theres-prosecutor-in-new.html

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Ref:   https://chihaukam.blogspot.com/2026/06/httpschihaukam.html?m=1

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John : In term of technology's level, hacking a personal computer which use an RJ45 is as difficult as hacking a drone which use a GPS.  

Me: Why?

John : Before I tell you, take a look.   https://chihaukam.blogspot.com/2026/06/httpschihaukam.html?m=1  . It mention about the difference between a reflection loss and insertion loss.

Me: Ok.

John : The circuit of "RJ45" act as an insertion loss cause the carrier wave of high frequency can't pass the inductor. And then the carrier wave enter the ground. 

Me: Ok. 

John : The job of hacker is to avoid the loss. See the 1st picture above. I intentionally add a route between the local oscillator and the Radio frequency. That route can let the reflected carrier wave enter the ground. Do you still call it reflection loss ?

Me: No, I call it insertion loss. It's same as RJ45. 

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John : In another words, if you are able to hack a personal computer which use a circuit of RJ45, you are probably able to hack a drone which use a circuit of GPS.

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Me: For sure, from technology's point of view, RJ45 is as high-end as GPS. 

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