Pilot, programmer and aviation lover. L-1011 forever 🛫

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Joined 1 year ago
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Cake day: June 30th, 2023

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  • The radar you’re talking about is a pulse-doppler radar. It doesn’t see things the same way your eyes (or a synthetic-aperture radar for example) do and it’s not down to filters. A P-D radar observes and measures the Doppler effect which only occurs when the object is moving and determines the contact’s velocity, heading and altitude based on that. A jet flying vertically at 0 GS would probably be detectable, although this would be difficult since, as you said, it’s not moving directly towards or away from the radar.






  • I don’t think it’s paranoid to not want any intermediary to know what you’re talking about, even if all you’re talking about is innocuous things like groceries.

    Besides, they don’t have to “waste time” on anything. They’ve got computers to collect it all.

    Of course, like you said, Signal or Matrix are potential solutions for that, but you still need to get both sides to agree on using them. SMS have the advantage that everyone has a phone number and can thus use them. Upgrading to RCS will secure this insecure-yet-very-popular medium.