Like a schoolteacher threatened when one of her kids isn't utterly dependent on her knowledge, you're calling me a smart ass and telling me to keep my mouth shut.
No, I don't think I will. And you can keep your smug control-freak self to yourself. I am allowed to speak.

This is a radar.

This is OTH radar.
We are told this radar pitches upward, but since we can't see that, we have to take it on faith.
I don't even take religion on faith. I doubt everything, until real faith provides an answer. God has not let me down.
So back to this OTH thing. It seems far more likely that what we are actually talking about is those poles being used as a sort of repeater to extend the range of what would be a crappy signal.
There is nothing about this to do with pitching signals upward. It simply extends outwards like a bat screaming (in the case of a normal radar), and echoes using the poles which repeat the signal (in the case of OTH).
Bulma. You done changing the subject to from things that still destroy flat earth?
Why would I when you base your BS off your lie things don’t disappear bottom up like the setting sun.
In other words:
Hey Bulma, you need to get on track for topics that I want to talk about.
I get upset when you talk about radar because I work in a radar center and signed this
nondisclosure agreement here which means that I can use these radars only if I don't talk about how they really work.
And I get upset when you talk about how real pilots and sailors don't learn spherical trigonometry but instead look at a map and draw a straight line with a ruler, because my radar company also works for NASA, and they might defund me if it gets out that radars actually work in a relatively straightforward manner.
Please Bulma, let's talk about something else!
Yes yes, you know, you could just ask. I respond alot better to honest requests than duplicity.
As for your book, if I were in a boat and I tried to sail somewhere, while there might indeed require that I know that the horizon is horizontally curved, being vertically curved means that I have to sail uphill then downhill. This would create extraordinary problems with wind. It would present extraordinary problems with general travel. And it would create problems of engineering canals.
Again.
Flat Earth is certainly not useless to you. I believe one of you mentioned something about experience in radars. Turns out that it is far more effective to have a radar that can continue quite a ways versus one that has to wrap around a curve. Planes can land more easily on a flat level surface than a moving curved surface. And your radar system can guidance missiles to their destination.
Also, if it ever became public knowledge that the Earth is flat, you might be released from your nondisclosure. At least, enough that you could stop saying absurdities like this. I happen to know just how messed up radar nondisclosure can be. Back in WWII, they started a meme that persists even today about carrots giving people night vision.