Siretta ALPHA Series Adhesive Mounting Antennas - Siretta ALPHA4A/5M/SMAM/S/S/26, The Siretta Alpha 4A is an extremely compact, self-adhesive mounting, IP67 rated, GPS antenna. Its 37 x 33mm footprint makes it able to be fitted into a wide range of locations, and with a height of only 13mm it provides an unobtrusive profile.The Alpha 4A is fitted with a strong self-adhesive base that provides a firm fixing on most flat surfaces, including: metal, glass, wood and plastic. It can be used indoors or outdoors where its IP67 rating makes it well suited to in harsh environments. GPS applications include: vehicle / fleet / asset tracking, mobile applications or general positioning purposes.The antenna has a centre frequency of 1575.42MHz for GPS compatibility and a built-in Low Noise Amplifier (LNA) providing 26dB gain for superior GPS performance. Siretta ALPHA4A/5M/SMAM/S/S/26 GPS Antenna