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RFOptic’s RFoF for GPS Applications

rf over fiber

RFOptic’s RFoF for GPS Applications

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GPS signals have to be transferred from the antenna to a control room in mobile networks architecture. Sometimes, the physical distances are more than a few kilometers which preclude the use of coax cable due to high loss. Minimal fiber infrastructure drives mobile companies to use the same infrastructure for GPS and digital signals using WDM technologies.

The GPSoF solution of RFOptic allows signals to be carried from an antenna to a GPS receiver over fiber with minimal signal degradation. The GPSoF connection operates at low signal levels, e.g., directly from the antenna to the network in case of GPS. The Tx unit uses an optical transmitter to convert RF to Optical signal. The Rx unit converts it back to RF signal. The two units are connected through the customer’s single mode fiber.

The RFoF links are designed to offer a low noise figure by integrating a built-in LNA in the transmitter and post amplifier in the receiver for these low level signals. A built-in bias-T is also available to power an additional front-end if necessary. The module is offered as RFoF in a compact aluminum case for indoor applications and in suitable outdoor enclosures.

The RFoF modules have a relatively high gain (about 40dB) with excellent gain flatness, and a low noise figure (thanks to the integrated LNA in the transmitter), and high SFDR. In addition, their power consumption is relatively low. The standard optical connector is FC/APC, with SC/APC being available upon request.

Key Features

  • Next generation RFoF modules with significant performances improvement.
  • Supports to 0.5 MHz – 2.5 GHz. (100MHz to 2.5GHz with standard Bias-T option)
  • Excellent linearity, excellent gain flatness, and Tx, Rx and link gain control.
  • Noise Figure better than 6 dB with LNA with MDS ~168 dB/Hz for very low incoming signals.
  • Internal micro-controller and optical monitoring and control enabled by software.
  • End-to-end diagnostics reduce installation and maintenance time, enabled by software.
  • Gain variation S21(fo) of ±1 dB for 90° C variation, utilizing special algorithm.
  • Remote Management by GUI installed on PC.
  • Impedances of 50 Ohms and 75 Ohm.
  • Bias-T (5V – up to 250 mA) – optional.

For more information, download the brochure or contact us.

RFOptic’s Unique Software Helps Customers to Configurate and Control Their RFoF Modules

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As RFOptic, we always strive to bring our customers of our RFoF and ODL solutions the best service and support in the field. That’s why we have developed unique software that allows you to configurate your RFOptic’s RFoF modules.

With the software, you can control one or more modules. All you need to do is to power up and connect your computer or tablet using a standard USB to interface with the software. Once connected, the software detects your RFoF modules, and you are ready to configurate and control them. The software is designed to work on PCs and laptops that run Windows 7, 8 or 10 operating system versions. Please note that it does not operate on previous operating system versions. However, a separate version for Windows XP. Is available. The software detects the modules automatically once connected.

Some of the features include:

  • Connecting Transmit (Tx) and Receive (Rx) RFOptic’s RFoF modules
  • Simultaneously connection to multiple modules
  • Obtaining status information and verifying the optical connection
  • Setting up and operating the configuration
  • Defining power-up default setup
  • Initiating self-test, RF module test and RF link test

With the software, it’s easy to check if your modules are connected correctly. (See also our video to learn more) The panel LED indicators on the RFoF modules will indicate if the optical fiber is connected or disconnected.

  • If the optical fiber is disconnected, the panel LED of the Tx is green and the panel LED of the Rx is red.
  • If the optical fiber is connected properly between Tx and Rx units, the panel LEDs of both Tx and Rx are green.

The image below illustrates the easy-to-use software offering a rich set of features and functionalities.

The software is made available free of charge under the license agreement, please make sure to familiarize yourself with the content before downloading and using the software.

Do you have any questions or remarks? Do you want to get more information? Feel free to contact us!

RFOptic’s Presence at the IBC 2017 Was a Great Success!

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RFOptic at IBC 2017

Recently, RFOptic attended the IBC 2017 to meet existing and new customers, strategic partners and distributors. Since we are a leading provider of RF over Fiber & Optical Delay Line solutions, it was a given that we would be attending this world’s leading media, entertainment and technology show.

The IBC 2017, which celebrated its 50th anniversary, was highly successful with a record attendance of over 57,000 visitors. The IBC Exhibition covered fifteen halls across the RAI Exhibition and Convention Centre in Amsterdam and hosted over 1,700 exhibitors spanning the creation, management and delivery of electronic media and entertainment.

At the event, RFOptic had 45 meetings with AV and Satcom integrators as well as wireless cameras and microphones companies who showed an interest in our RFoF and ODL solutions that are already used by Tier 1 and other enterprises active in the broadcast, audio and video sector as well as in the telecom, aerospace, governmental, and research labs industries.

We also introduces our two recent offerings:

  1. Our innovative compact bidirectional (2 way) RF over Fiber (RFoF) transceiver which is comprised of an uplink of Tx and Rx (at 1550nm) and a downlink of Tx and Rx at 1310nm, and
  2. Our controllable RF over Fiber (RFoF) OEM cardswhich offer an excellent solution for companies who need to add an RF over Fiber capability to their portfolio.

We also met potential distributors and integrators for strategic partnerships and cooperation, and met several of our competitors to discuss mutual interests.

We will be attending the next IBC, so come and meet us again at the IBC 2018 that will take place September 13-17, 2018 in the RAI Exhibition and Convention Centre in Amsterdam.