Orolia GPS-GNSS Antennas and Accessories

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Model 8230 GPS/GNSS Outdoor Antenna

The Model 8230 is a high gain (40 dB) GNSS outdoor antenna covering GPS L1, Galileo E1, GLONASS L1, and BeiDou B1 . It uses a three stage low noise amplifier, a mid-section SAW, and a tight pre-filter to protect against saturation by high level sub-harmonics and L-band signals.

Datasheet
Datasheet

Orolia Model 8230 GPS Antenna

Technical Note, "Outdoor GPS Antenna Installation Considerations": GPS-Antenna-Installation_TN07-101_D_Vicom.jpg
Installation Guide, "Model 8230 Outdoor GPS Antenna": Datasheet

 


 

Model 8230AJ GPS/GNSS Anti-Jam Outdoor Antenna

Orolia Model 8230AJ Anti-jamming GPS Antenna

The Model 8230AJ is a high gain (40 dB) GNSS outdoor antenna. It uses a three-stage low noise amplifier, a mid-section SAW, and a tight pre-filter to protect against saturation by high level sub-harmonics and L-band signals. The Anti-Jam antenna rejects signals for the lower elevation angles – where most of the interference comes from.

DatasheetDatasheet 

Standard or Anti Jam (AJ) Antenna – Which Should I Use?

The standard antenna sees the entire view of sky, equally receiving signals from satellites at the horizon or the zenith and all points in between. However, there is increasing interference in the GNSS L1 band, whether unintentional from other transmitters like communications towers or intentional from illegal “privacy jammers”. The AJ antenna rejects signals for the lower elevation angles – where most of the interference comes from – and only receives signals from the higher elevation angles where the satellites are. Of course, this reduces the number of satellites the receiver will see, but for the timing application, only a few satellites are needed. Moreover, with multi-constellation receivers, there are an increasing number of satellites available. So you get all the performance in timing accuracy you would get with a standard antenna plus 20 dB or more of interference rejection.

  etwork Diagram - Using a Passive Anti-Jam Antenna to Combat GNSS Interference

Case Study, "Using a Passive Anti-Jam
Antenna to Combat GNSS Interference"

Case Study - Using a Passive Anti-Jam Antenna to Combat GNSS Interference

 


 

GPS Antenna Mounting Accessories

Orolia offers various mechanical assemblies to support a reliable outdoor antenna installation.

DatasheetDatasheet

 Spectracom GPSP Antenna Mounting Accessories

 


 

GPS Antenna RF Down-Up Convertor Kit

Spectracom GPS Antenna RF Down-Up Convertor kit

 

Another approach to long cable runs down converts the GPS RF frequency in a specialized roof-top antenna to minimize signal loss and allows RG-58 cable to extend up to 1,500 ft (450 meters). The kit comes with an upconverter that is installed near the GPS receiver.

Datasheet

Datasheet

 


 

GPS Antenna Fibre Optic Link Kit

A fibre optic link can bridge a long antenna-receiver distance and provides for electrical isolation. A typical kit can link a fibre transmitter and receiver via singlemode simplex fibre for up to 8 km.

 DatasheetDatasheet

Spectracom GPS Antenna Fibre Optic Link

 


 

GPS Antenna Surge Suppressor

 Spectracom GPS Antenna Surge Surpressor

Model 8226 protects the receiver, and other inside equipment, from damaging voltages. Voltages exceeding the impulse suppressor trip point are shunted to the system ground. The surge suppressor is supplied with a mounting bracket. A Grounding Kit is also available.

 

 

Technical Note, "GPS Lightening Surge Production": GPS-Lightning-Protection_TN08-101_D
Installation Guide, "Model 8226 Surge Suppressor": Model 8226 Installation Guide thumb

 


 

GPS Antenna In-Line Amplifier

The Model 8227 is a convenient solution when the GPS RF falls below the receiver's recommend minimum input. While the maximum cable length depends on thegain of the antenna, loss of the cable and sensitivity of the receiver, we find that the inline amplifier can extend a cable run by 130 metres.

DatasheetDatasheet

 Spectracom GPS Antenna In-line Amplifier

 


 

GPS Antenna Low-loss RF Cable

 Spectracom Low-loss GPS Antenna Cable

Spectracom offers LMR-400 equivalent cable assemblies terminated with type N connectors. Order CA01-0N0N-3xxx, where xxx = length in feet. Contact us for special requirement cable.