The Alpha 4A is a compact, self adhesive, waterproof, GPS antenna.
It comes with a strong self-adhesive base that provides a firm fix to most flat surfaces. The antenna is well suited to outdoor environments that GPS applications are often subject to.
The built in Low Noise Amplifier (LNA) provides a 26dB gain for superior GPS performance; necessary for strong signal reception from visible satellites as well as influencing a shorter time for satellite fixing.