Against this attack? Yes. Against a trivial modification of this attack? No.
(Trivial modification: you have two transceivers. Each transceiver encodes and encrypts everything in the frequency range, and sends it to the other one, which decrypts it and rebroadcasts it.)
Think of the original attack as being the equivalent of placing a megaphone up against the guy whispering, and this attack as being the equivalent of placing a cell phone up against the guy whispering and another cell phone that's connected to the first one up against the guy waiting to hear something.
Not to mention that triangulation has... problems. You really don't want your car to not open because there was a stray reflection off of something nearby.
(Trivial modification: you have two transceivers. Each transceiver encodes and encrypts everything in the frequency range, and sends it to the other one, which decrypts it and rebroadcasts it.)
Think of the original attack as being the equivalent of placing a megaphone up against the guy whispering, and this attack as being the equivalent of placing a cell phone up against the guy whispering and another cell phone that's connected to the first one up against the guy waiting to hear something.
Not to mention that triangulation has... problems. You really don't want your car to not open because there was a stray reflection off of something nearby.