Gee, I never thought of those boosters. My friend has some that he received with an ebay order a few years ago. I should get them and plaster all over the transmitter. I wonder if they will support the frequency as it is different from the cell frequencies. As for shielding, I don't think I'd have to worry too much. There's only one employee in the receptionist building and that position rotates every few months so they wouldn't be getting a year round dose. The rest of the employees are already in a big steel building.

Reene