GPS Antenna - SA-300
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GPS Antenna For Marine & Stationary Application


Model: SA-300

Combining the most innovative concept with precision manufacture, we proudly release this latest GPS antenna—SA-300

Overview

With the compact polycarbonate radome enclosure and the waterproof/weatherproof physical construction, SA-300 is deliberately designed for both navigators and researchers who often need to use GPS in harsh environments, such as strong shock or vibration, fierce wind, and even continuous exposure to water and sunlight.

Additionally, SA-300's stainless pole mount not only enables the antenna to receive GPS signals steadfastly, but also enables the cable to be threaded, protecting itself from environmental damage. Both of the industrial standard TNC connector and 1”-14 straight thread perfectly fit the typical marine mount, enhancing multifunction and application for SA-300. Furthermore, through the inventive integration of dual amplifiers and dual filters (saw filter + bandpass filter), SA-300 provides excellent resistance to RF signal interference without compromising its gain, which helps ensure stable performance even in RF signal-jamming environment.


Features

SA-300 is an active GPS antenna with high gain of 27 dB and low current of 27mA, supporting RG-58 A/U cable as long as 50m.

Given the aforementioned features, we believe SA-300 to be your most reliable companion for timing, stationary and marine application.

sa300

Specification

Physical Characteristics

Construction: Polycarbonate radome enclosure, sealed with weatherproof rubber O-ring
 in-between; Center fed with TNC connector for antenna output
Antenna Dimensions: 4.5” in diameter & 2.9” in height
Weight: 220 grams w/o cable
Color: White

Cable & Connector

Cable Length: 10 m RG58 A/U with 15-50 m optional; Cable connectors hermetically
 molded plastics for waterproof and stain relief
Connector Available: TNC (standard), other types (optional)

Mounting

Standard Mounting: External flagpole type mast mount 1"-14" threaded mast
Optional Mounting:
  1. Cabin roof-mount with stainless steel base & shaft
  2. Rail side mount with stainless rod

Antenna Element

Polarization: R.H.C.P. (Right Hand Circular Polarization).
Absolute Gain @ Zenith: +5 dBi typically
Azimuth Coverage: 360º
Gain @ 10º Elevation: -1 dBi typically
Azimuth Coverage: 360º
Axial Ratio: 3 dB max.
Output VSWR: 1.5:1 max.

Amplifier Element

General: L1 frequency, 1575.42 MHz +/-1.023 MHz
LNA Gain: 30 dB typically
Bandwidth: 2 MHz min.
Noise Figure: 2.0 max.
Out-of-Band Attenuation: 30 dB min. @ Fo +/- 50Mhz
Current Consumption: 27mA +/- 3mA

Overall Performance

Center Frequency: 1575.42 MHz
Gain: 27 dB typ.
Noise Figure: 2.0 max.
Axial Ratio: 3dB max.
VSWR: 2.0 max.
Output Impedance: 50 Ω

Electrical Characteristics

Supply Voltage: 4.5-5.5V DC
Power Consumption: 27mA @ 4.5 volts, 0.12 watts typ. < 0.2 watts max.
Environmental Characteristics
Operating Temperature: –30º to +85º C
Storage Temperature: –40º to +90º C
Operating Humidity: 95% RH, non-condensing
Waterproof: 100% waterproof at the rating of IP66

This specification is subject to change without prior notice..

Data Updated: August 23, 2005

 
web resource: A directional antenna is an antenna which radiates greater power in one or more directions allowing for increased performance on transmit and receive and reduced interference from unwanted sources.
Etek are recognized as one of the leading traders in this sector due to our capability to supply impeccable GSM Antenna products to our customers.

 


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