The Alpha 4A is a compact, self adhesive, waterproof, GPS antenna. Its 37 x 33mm footprint allows the Alpha 4A to fit onto most surface sizes quite comfortably, and with a modest height of only 13mm, it also provides an unobtrusive profile.

The Alpha 4A comes with a strong self-adhesive base that provides a firm fixation to most flat surfaces, including: metal, glass, wood and plastic. The antenna is well suited to the harsher outdoor environment that GPS applications are often subject to. The Alpha 4A can be used for a host of different indoor or outdoor GPS applications or general positioning purposes.

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.

  • Adhesive or magnetic mountable
  • 26db LNA gain
  • Waterproof
  • Compact size
  • IP67 waterproof design which makes it ideal for mounting outdoors
  • Operates with GPS receivers with built in LNA circuit on board

Alpha 4A



Alpha 4A Datasheet
Version: 1.4

IP Test Certificate

ALPHA 4a IP Test Certificate

Ordering Information

Siretta Part Number: ALPHA4A/1M/SMAM/S/S/26
Description: GPS Antenna

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Alternative cable lengths and connector types can be specified for volume orders