Siretta Alpha 18

Dipole GSM / GPRS and 3G Horn Antenna

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Key Features
  • Quad Band GSM / GPRS
  • 3G / UMTS
  • Adhesive
  • SMA Male 3M or FME Female 2.5M
  • RG174

The Alpha 18 is a small, low profile, adhesive Quad Band and 3G horn antenna.

This compact doublet is the latest addition to the Siretta Alpha family of antennas and it is designed to fix discreetly and securely onto most surfaces. So whether the ALPHA 18 is on top of an energy meter or on the side of telemetry equipment, it delivers flawless performance and hence connectivity in varying environments and applications. Supplied with a 3M adhesive base, the Alpha 18 is perfect for quick and simple installations onto a number of different surface materials such as: metal, glass, wood and plastic. More so, the use of an adhesive base takes away the need to drill holes or apply adhesive substances - simply ‘peel & press’ the antenna into its desired position.

The Alpha 18 is tuned to quad band GSM / GPRS, 2G, 3G / UMTS frequencies, making this antenna ideal for applications worldwide. The wideband Alpha 18 is therefore a model contender for applications running on the 2G/GPRS Networks or for applications demanding high data transfer rates via the 3G/UMTS Network.

The Alpha 18 is supplied, as standard in two variants:

1) 3 metre RG174 coaxial cable, terminated with an SMA male connector

2) 2.5 metre cable terminated with a FME female connector


Antenna Specifications
Operating Temperature: -40 to +85°C
Impedance: 50 ohm
Gain (peak): 3 dBi
VSWR: <2.0
Polarization: Linear

Operating Frequencies
850, 900, 1800, 1900MHz (Quad Band GSM / GPRS & 2G)
2.1GHz (3G)

Length: 96.2 mm
Width: 21.5 mm
Height: 27.7 mm

Mounting Specifications
Cable: RG174
Mounting Method: Adhesive