GPS/GNSS Antennas and Accessories

  • GPS/GNSS antenna
  • SAASM antenna
  • Indoor GPS antenna panel
  • Indoor window-mount antenna
  • GPS RF splitter
  • Inline amplifier

GPS Antennas Overview

Our systems approach offers standard GPS/GNSS antennas and related accessories for its precision timing products with embedded GPS/GNSS receivers.

A typical installation uses an outdoor antenna installation to collect and reliably transmit the RF of the collected signals to the embedded receiver (such as Spectracom's GPS NTP Servers). As a solutions provider, Spectracom offers best-in-class GPS antennas and accessories from 3rd parties into fully qualified and warranted systems. If you have a specific need for your application, we can assist with sourcing and procurement.

The recommended installation includes:
  • Outdoor GPS/GNSS antenna (model 8230)
  • Surge suppressor for lightning protection (model 8226)
  • Low-loss LMR-400 equivalent RF cable to connect the antenna to the surge suppressor and the surge suppressor to the GPS/GNSS receiver (type N)
Also available:
  • Mounting accessories for a roof-top antenna installation
  • Indoor GPS/GNSS reception options when an outdoor installation is not practical
  • Options for long antenna-to-receiver cable runs (> 400 ft, 125 meters)

Recommended Installation

GPS/GNSS Antenna

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. ​

Key Specifications

Surge Suppressor

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.

Low-loss GPS RF Cable

Spectracom offers LMR-400 equivalent cable assemblies terminated with type N connectors. Order CAL-7xxx, where xxx = length in feet. Contact us for special requirement cable.

Antenna mounting accessories

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

Options for Indoor GPS

Skylight Indoor GPS Timing System

Consisting of an indoor GPS antenna panel, a configuration of Spectracom’s SecureSync® modular GPS time server, and an interconnect cable, Skylight opens new possibilities for accurate GPS time.

  • An option for leased facilities, urban canyons, buildings with prohibitively expensive cable runs
  • Attractive antenna panel designed for office installations
  • Works with other Global Navigation Satellite Systems for improved reliability
  • High stability internal oscillator maintains precise time even when GPS signal is intermittent

SAASM Secure GPS Antenna

SAASM GPS Antenna

SAASM GPS Outdoor Antenna

The Model 8225S is a GPS outdoor antenna covering GPS L1 and L2. It is compatible with all other acccessories for the recommended RF cable installation including the model 8226 surge suppressor and CAL7 RF cable. ​

Key Specifications

Options for Long Cable Runs

Inline Amplifier

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 400 feet.

RF Down-Up Converter 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.

Fiber Optic Link Kit

A fiber optic link can bridge a long antenna-receiver distance and provides for electrical isolation. A typical kit can link a fiber transmitter and receiver is via 9/125 micron singlemode simplex fiber (SC/APC connectors) up to 5 miles (8 km).

Product Resources

Technical Notes and Briefs

More Info
Facilities with connections to the outside may suffer damage due to lightning. Electronic components are extremely sensitive to high voltage from major energy sources such as lightning, which is the most common danger. It also has the characteristic of being completely unforeseeable. To protect people and equipment from lightning, it is essential to ensure that all wired connections from building exteriors include the appropriate form of protection.
pdf - 134 KB
Wednesday, May 18, 2011
By: Spectracom
More Info
Many Spectracom timing and synchronization products utilize an embedded GPS receiver as a primary reference. Typical installations utilize an outdoor active GPS antenna to collect and transmit GPS satellite radio signals to the receiver via an RF cable. This technical note describes the main considerations for a successful outdoor GPS antenna installation for a timing application.
pdf - 274 KB
Tuesday, October 15, 2013
By: Spectracom

Datasheets

More Info
We offer RF splitters as a convenience for building GPS antenna systems.
pdf - 93 KB
Wednesday, November 26, 2014
By: Spectracom
More Info
This GPS antenna is no longer available from Spectracom. The model 8230 is the replacement with equivilent or improved performance. The 8225 datasheet is available as a convience for previous customers.
pdf - 111 KB
Tuesday, October 1, 2013
By: Spectracom
More Info
Our standard GPS antenna system for SAASM systems supporting L1 and L2 bands.
pdf - 128 KB
Friday, February 6, 2015
By: Spectracom
More Info
We recommend a surge suppressor for all GPS antenna system installations.
pdf - 108 KB
Thursday, August 25, 2011
By: Spectracom
More Info
An inline GPS RF amplifier can support longer cable runs.
pdf - 121 KB
Wednesday, July 27, 2011
By: Spectracom
More Info
In some instances, an indoor window GPS antenna could provide an alternative if an outdoor roof-top installation.
pdf - 181 KB
Wednesday, July 27, 2011
By: Spectracom
More Info
Our standard GNSS L1 antenna system.
pdf - 187 KB
Monday, November 11, 2013
By: Spectracom
More Info
This GPS antenna system is no longer available. The data is available as a convience for previous customers.
pdf - 81 KB
Tuesday, October 1, 2013
By: Spectracom
More Info
This kit can be used to mount the models 8230 and ANT-35 GPS antennas.
pdf - 97 KB
Monday, November 25, 2013
By: Spectracom
More Info
This kit converts GPS RF to fiber optics for long and/or secure connections.
pdf - 173 KB
Thursday, December 1, 2016
By: Spectracom
More Info
This kit converts GPS RF to a lower frequency for lower signal loss for long connections.
pdf - 82 KB
Wednesday, November 26, 2014
By: Spectracom