Siretta Alpha 6

IP66 Combined Quad Band GSM and 28dB GPS Antenna

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Key Features
  • IP66 Rated Adhesive Mount
  • Combined GPS / GSM Antenna
  • 28 dB LNA Gain
  • Groundplane independent
  • RoHS compliant

Combined quad band GSM and 18dBi GPS sticker mount antenna for internal/external use with tracking/location based applications. Mounts on glass in vehicles and provides good overall performance supplied a variety of cable lengths and connectors.


The Alpha 6 is a compact, puck-shaped GSM & GPS combination antenna. This antenna combines two separate antennas into a single package that measures only ø71 x 14mm. The Alpha 6 is well suited to most GSM/GPS systems that require an ‘all-in-one’ antenna solution. Combination antennas are perfect for applications where the use of multiple antennas is not an option for installation or space confinement reasons. Supplied with an adhesive base, the Alpha 6 is great 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. These features make the Alpha 6 very popular with vehicle and asset tracking applications.

The Alpha 6 is built with two separate antennas inside: a quad band GSM antenna and a GPS antenna. The GSM antenna is a 850/900/1800/1900MHz dipole providing global GSM and GPRS coverage. The GPS antenna is built with a 28dB Low Noise Amplifier (LNA) to provide strong satellite fixing in most circumstances where the antenna has full view of the sky.

The Alpha 6 is supplied, as standard, with either a 2 or 4 meter RG174 coaxial cable (one for GPS, one for GSM), with the GSM cable terminated with FME female connector and the GPS with an SMA male.



Key Specifications - Electrical

Temperature range: -40 to 85 °C
Radiating element: ¼ wave dipole
Frequency bands: 850, 900, 1800, 1900MHz ± 3MHz
GSM gain: 2dB ± 1dB @ 900MHz or 1dB ± 1dB @ 1800MHz
GSM polarization: 50 Ohms
GPS patch frequency: 1575.42MHz ± 3MHz
GPS patch gain: 3dBi ± 0.5dBi
GPS patch bandwidth: ± 5MHz ± 1MHz
GPS patch VSWR: 1.5:1
GPS patch polarization: RHCP
GPS patch impedance: 50 Ohms
GPS LNA gain: 28 dB
GPS LNA noise figure: 1.5dB
GPS LNA voltage: 3v - 5v
GPS LNA current: 8mA - 15mA
GPS filter attenuation: 14dB Min f0+50MHz ± 1.0dB
18dB Min f0-50MHz ± 1.0dB
30dB Min f0 + 100MHz ± 1.0dB
42dB Min f0 – 100MHz ± 1.0dB

Key Specifications - Mechanical

Dimensions: 71mm x 14mm
Weight: 0.35kg
GSM connector: 2 or 4 metre FME female
GPS connector: 2 or 4 metre with SMA male

Environment Specifcations

Condition: Post environmental tolerance
Temperature: 25 ± 3°C
Operating temperature range: -40 to 85°C
Storage temperature range: -40 to 100°C
Relative humidity range: 55 75%RH
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