1 GPS Fiber Transport System

 Portable single GPS timing over Fiber

The Thor Fiber portable F-1GPS-TX/RX systems are available to support the remote location of  industrial  GPS antennas.  These kits are assembled and tuned to the  unique  requirements of each application.  Thor GPS over fiber systems are an excellent solution for distance limitation between maritime or government GPS antennas and radio signal receiver equipment. Typically any sensor equipment or tuning hardware such as universal time receivers or GPS navigation gear must be installed and located within  100 ft of the  antenna system.  Most modern industrial type systems  require antennas  with a clear view of the horizon to function properly. In the case of large ocean going vessels, underground military installations, or large buildings or structures(metropolis); it can be a challenge to install GPS equipment within 100 ft of a suitable antenna location. Thor solves this problem by extending the distance to over 20km by converting the GPS signal from the antenna’s coax to fiber optic cable.  F-GPS systems are  available in a variety of form factors, and  can be custom tuned to  individual users applications.

GPS reference timing signals are widely used to synchronize cellular  base stations,

GPS systems typically consist of an active rooftop antenna, a GPS receiver and a length of coaxial cable to connect them. Common challenges arise when the distance between the rooftop antenna and the cellular base station equipment (usually in the basement) is greater than 300 ft. Coaxial cable runs over 300 ft are not practical for most  GPS receiver systems, so a fiber optic link is required at such distances, and Thor Fiber optic links are some of the most  trusted, cost-effective links in the industry.

Product Features 

Supports all GPS frequencies internationally

Supports both L2 & L1 GPS bands

Extends the range between GPS antennas and equipment to over 20 miles

Fiber links are immune to RF interference problems associated with coax

Ideal for broadcasting towers, cell sites, military installations, and large ships

Provides a fiber security break and insulates from lightning strikes

1  GPS input

1 Independent fiber optic ouput SC/APC

N Female Type RF Connetor

Portable power supply

Supports high level of optical split and RF split for flexible routing of GPS for small cells and extended base station sites

Simple to install – no adjustment

Minimal signal loss and degradation over very long cable runs upto 20km.

Provides a highly secure tamper-proof GPS over fiberconnection between antenna and receiver.

Interference free link through noisy environments, the optical signal is unaffected by electical noise.

Electrical isolation between antenna and recever protects against lightning strikes and electrical surge

Selectable GPS antenna powering voltage

Supports both L2 & L1 GPS bands

Aplications

- GPS base stations with long antenna cable runs
- Run the GPS carrier to multiple GPS timing boards throughout a company
- Run GPS throughout an aircraft
- Satisfies the requirement of supplying multiple GPS receivers with a carrier, spread over a great distance
- For R&D facilities, supplies a GPS carrier to a multitude of engineers and technicians with only one antenna on the roof.

Product Specifications

*All Specifiactions Subject to Change Without Notice

Electro Optical Characteristics

Optical Output

Optical output Power

Receiver Sensitivity

Optical budget

1 mW min.

(0-+3)dBm

-10dBm

10db

Wavelength

1310 nm, (1550nm or CWDM special order only) 

RF Characteristics

Frequency Range

1100 – 1585.42 MHz 

CNR

60dB

Input VSWR (50 Ohm)

2.0:1 max

MW/ma@1200Mhz

0.1mW/ma min

1dB Compression 

 -25 dBm

Power

Power to the Antena

12 VDC external power supply

5V DV (ON/OFF switch)

Physical Characteristics

Dimensions

Height 1.2

Width 3.5

Length 5

Link Characteristics

Link Loss

15 dB typical

Carrier/Noise (30khz BW)

15 dB min with input drive level at 70 dBm

3rd Order Intercept   

22dBm

Environmental Conditions

Operating Temperature

-25 to +70 (deg C)

Storage Temperature

-30 to +75 (deg C)

Mechanical

Optical Connectors

Electrical Connector

SC/APC Fiber S/M 9/125

N type Female