Specifications: GAS76  (OEM part number: SM-76)

GAS76 is the integration of the high performance GPS patch antenna and a state-of-the-art low noise amplifier into a very low profile/extremely compact/fully waterproof enclosure. When connected to a GPS receiver with +2.5 to +5.0 Vdc antenna power, it can provide excellent signal amplification and out of band filtering & rejection for that receiver.

(This text specifies the basic operation characteristics of the Active GPS antenna Model GAS76 under standard test condition of +2.5& +5.0 Vdc and 25*C /50%R.H. respectively.)
Physical Constructions:
 Constructions: Polycarbonate radome over a die-cast base along with detachable cable/connector for
   easy mount
 Dimensions: 58 mm(L)x 48 mm(W)x 15 mm(H).
 Weight: 63 grams (excluding cable & connector)
 Standard Mounting: 2 magnet mount, screw mount with 2 M3 tapped holes on
   the base.

Cable & Connector:
 RF cable: 3 meter RG174/U cable
 Pulling strength: 6 Kg @ 5 sec.
 Connector  right angled BNC or MCX,

Antenna Element:
 Center Frequency: 1575.42 MHz +/-1.023 MHz
 Polarization: R.H.C.P. (Right Handed Circular Polarization).
 Absolute Gain @ Zenith: +5 dBi typically
 Gain @ 10o Elevation: -1 dBi typically
 Axial Ratio: 3 dB max.
 Output VSWR: 1.5 max.
 Output Impedance: 50

Low Noise Amplifier:
 Center Frequency: 1575.42 MHz +/- 1.023 MHz.
 Power Gain: 28 dB typically
 Bandwidth: 2 MHz min.
 Noise Figure: 2.5 max.
 Supply Voltages: +2.5 ~5V DC
 Current Consumption: 12mA +/- 1mA @ +3.0 ~ 5.0V DC
 VSWR: 2.0 max
 Output Impedance: 50

Overall Performance: (antenna element, LNA & coax cable)
 Center Frequency: 1575.42 MHz.
 Gain: 26 dB typically
 Noise Figure: 2.0 max.
 Axial Ratio: 3 dB max.
 VSWR: 2.0max.
 Output Impedance: 50

 Operating Temperature: -40oC~ +85oC.
 Storage Temperature: -50oC~ +95oC.
 Relative Humidity: 95% non-condensing.
 Water Resistance: 100% waterproof.

(This specification is subject to change without prior notice)