Making your own shields permeable to your own phasers by adopting a specific frequency sounds like suicide.
I mean, the point ought to be to keep the shield frequency secret from the enemy. But if you fire specifically tuned phasers at the enemy, you are sending them the frequency in a phaser beam.
I guess it's equally possible (in the fictional sense of the word) and more likely that shields simply work in one direction only. Stuff gets out trivially easily. It can't get back in, though, which is why the heroes don't like to beam out through their own shields - they generally want to return, too. But technically they could, and indeed this seems to be what's happening in the very first beaming-and-shields episode, "A Taste of Armageddon".
That same episode also includes the tidbit that fully raised shields preclude the use of full phasers. But that's probably a simple power allocation issue, and also specific to the ship in question - nothing suggests the shields would block the phasers.
As for the rotation thing, I'm pretty sure shields are being rotated in ST:GEN (only it doesn't help because LaForge always tells the Klingons the new frequency). It could also be that the figure we see is the frequency at which the shields are being rotated...
On the other hand, rotation is supposed to defeat the Borg adaptation routine. If it were of any help against conventional enemies, surely it would have been invented and introduced centuries before "Best of Both Worlds". For all we know, rotation seriously weakens the shields, and should never be done except against the Borg where it's better than the nothing one would get if one didn't rotate.
Timo Saloniemi
I mean, the point ought to be to keep the shield frequency secret from the enemy. But if you fire specifically tuned phasers at the enemy, you are sending them the frequency in a phaser beam.
I guess it's equally possible (in the fictional sense of the word) and more likely that shields simply work in one direction only. Stuff gets out trivially easily. It can't get back in, though, which is why the heroes don't like to beam out through their own shields - they generally want to return, too. But technically they could, and indeed this seems to be what's happening in the very first beaming-and-shields episode, "A Taste of Armageddon".
That same episode also includes the tidbit that fully raised shields preclude the use of full phasers. But that's probably a simple power allocation issue, and also specific to the ship in question - nothing suggests the shields would block the phasers.
As for the rotation thing, I'm pretty sure shields are being rotated in ST:GEN (only it doesn't help because LaForge always tells the Klingons the new frequency). It could also be that the figure we see is the frequency at which the shields are being rotated...
On the other hand, rotation is supposed to defeat the Borg adaptation routine. If it were of any help against conventional enemies, surely it would have been invented and introduced centuries before "Best of Both Worlds". For all we know, rotation seriously weakens the shields, and should never be done except against the Borg where it's better than the nothing one would get if one didn't rotate.
Timo Saloniemi
