Before buying I would have liked the following information: - Antenna only works for horizontal or vertical signals (must be set) - Extremely narrow receiving angle (almost as sensitive as a satellite dish). Those who live in the border area of reception and must aim for more even slightly staggered transmission towers, for this antenna can not be used. Experienced electronics could dismantle the bündelden and unidirectional reflector, but then probably the gain drops significantly. - Antenna can not tend (open angle much too high). I have given 36 dB can not measure it, but my experiences with other antenna doubt this profit. The extendable telescopic rods are useless and even worsen the TV reception.