ushir, as the Poynting installation guy told me it's not suggested to use amps on antennas. They are boosting all signals they can grab, so it won't help you get a better signal just boost all the crap. We had to extend the normal 7 meter cable by an additional 3 meters. That's as far as advisable, not any longer! Signal comes still clear and strong tho.
Anyhow, I just cancelled my Neotel account and am now selling my Poynting antenna. It cost me 985 bucks and I will sell it to the highest bidder. Offers on PM please.