Picard wrote: If what you said was true, Starfleet ships ought to be invisible the moment they turn on their shields, instead it is shields that are invisible. It could have to do with frequency, but I doubt shields are as strong as black hole.
Star Trek
Tomorrow is Yesterday wrote: SPOCK: We've achieved a stable orbit out of Earth's atmosphere. Our deflectors are operative, enough to prevent our being picked up again as a UFO. And Mister Scott wishes to speak to you about the engines.
Voyager
Future's End Part 1 wrote: JANEWAY: Maintain a high orbit and modulate the shields to scatter their radar. We don't want to alarm the natives.
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TORRES: Interferometric dispersion is online. That should take care of any radar detection. And I've configured the shields to disguise our visual profile. Unless somebody gets right on top of us, we should look like a small twentieth century aircraft.
In "Star Trek The Next Generation: First Contact" the Enterprise-D sits in orbit around a planet who's population is about to build its first warp drive. Riker gets hurt, taken to a hospital, and then is found to be an alien. This causes a panic about an alien invasion, and yet no one sees the Enterprise-D in orbit.
Then you have the insane number of times ships appear to be closer then dialog states. In the episode Star Trek The Next Generation: Suddenly Human the Enterprise-D and another ship are stated to be 500 kilometers and closing, but the visuals show at best single digit kilometers.
Star Trek The Next Generation
Chain of Comand part 2 wrote: ELLICO: I began my career as a shuttle pilot, on the Jovian run. Jupiter to Saturn and back once a day, every day.
LAFORGE: Is that right? I was on that run myself for a while.
JELLICO: Then you must've done Titan's Turn.
LAFORGE: Oh, yeah. You set a course directly for Titan, hold it until you're just brushing the atmosphere, throw the helm hard over and whip around the moon at point seven c.
JELLICO: And pray like hell nobody saw you.
LAFORGE: You know, this trip into the nebula's going to need someone who can do Titan's Turn in their sleep. These mines need to be laid within two kilometres of the Cardassian ships. But the particle flux from the nebula will blind all the sensors except for this proximity detector. You're going to need one heck of a pilot to pull that off.
In Star Trek 4 the Voyage Home after grabbing the whales Kirk orders warp in Earth's lower atmosphere without so much as disturbing a cloud.
In Star Trek 2009 kirk has the ship come out of warp in Titan's atmosphere with no visible effects.
The stupidly fine control over gravity we see in Star Trek makes it so we should see pretty what ever they want us to see, and they often show things in an inaccurate manner because the viewer would see nothing if they did it right. Star Trek has faster then light weapons remember.
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Frequency measured in Hz simply means something happens X number of times a second.
Picard wrote: Gravity... among other things.
Well, it is a guess on my part that Star Trek shields are made up of more then just gravity. The display only mentions gravity.
http://movies.trekcore.com/gallery/albu ... en0613.jpg