por NaNdiNi » quarta nov 28, 2007 16:36
Ainda este fim de semana tive uma conversa sobre este tema.. a subir a fenda da calcedónia.
Bem, a conclusão é simples. Queremos a indepêndencia do sinal, para acabar com o totalitarismo americano. Não se passa o mesmo com o euro em relação ao dólar?
Bem, não querendo começar discussões anti e pró americanos, gostaria apenas de deixar aqui um texto, onde podem ver como os americanos em caso de guerra ou ameaça, não hesitam em cortar o sinal GPS, ou sabotá-lo com erros de centenas de metros.
Claro, dizem vocês, estão se a defender. E nós com isso?
As long as GPS is the only game in town, the US has a stranglehold on the superpower market. The US can regulate the GPS satellites and could cut off anyone else at any time. Seeing as GPS has revolutionized warfare, this means the US gets an automatic bonus in any war.
That's right, they get a +5 accuracy on all medium and long range weapons.
But if the US cut off the GPS, then they couldn't use it either, right?
It can be turned off selectively. Furthermore, as I understand it, "turned off" only means that the unencrypted data stream is gone. The military has the keys to the encrypted stream, so their GPS units still work.
I have also heard of GPS jammers, but anyone could use those, so that would effectively negate the US's GPS advantage.
GPS jammers are nearly useless. They are only powerful enough to cover a small area, so their only use is to protect a stationary target from attack by GPS guided bombs. Unfortunately, as demonstrated in the Iraq war last year, they don't even do that effectively. All six of the Russian-made GPS jammers fielded by Iraq were destroyed in short order, some of them by GPS guided missiles!
Por outro lado, também não sou egoísta ao ponto de apoiar um galileu de biliões de euros só para o Geocaching e para ver o gado a pastar. Certamente teremos muito mais a beneficiar com isso, ainda por cima se houver cooperação, digo eu.
You (cache) can hide, but you can´t run...