PCTEL~GPS TIMING ANT 40DB Timing reference antennas are specifically designed for longlasting, trouble-free deployments in congested cell-site applications. 40dB high gain amplifier is well suited to address attenuation issues associated with applications requiring longer cable runs. The proprietary quadrifi liar helix design, coupled with multi-stage fi ltering provides superior out-of-band rejection and lower elevation pattern performance than traditional patch antennas. Their unique radome shape sheds water and ice, while eliminating problems associated with bird perching. The antenna may be purchased by itself or with pipe mounting hardware. Custom models or site kits options are also available. This antenna is made of materials that fully comply with provisions stipulated by EU directives RoHS 2002/95/EC. This antenna also features ESD, reverse polarity protection and transit voltage suppression.