Chapter 1

Introduction

What is the RADWIN Online Link Budget Calculator?

The RADWIN Online Link Budget Calculator (RADWIN OLBC) is a web utility accessible from a web browser. It is used to calculate the expected performance of a RADWIN 2000, RADWIN 5000 & WinLink 1000 wireless link and the possible configurations for a specific link range.

The RADWIN OLBC allows you to calculate the expected RSS of the link, and find the type of services and their effective throughput as a function of the link range and deployment condi­tions.

Which RADWIN Products are Supported?

The RADWIN OLBC may be used to plan RADWIN 2000, RADWIN 5000 HPMP and WinLink 1000 based links. For RADWIN 5000 HPMP, you may use it for HBS to HSU links.

Integration with Google Earth

The RADWIN OLBC works closely with the Google Earth web browser plug-in and the Google Earth program. You can paste Google Earth latitude and longitudes into the Coordinates win­dow of the RADWIN OLBC. It will then show you the Google Earth map segment containing proposed link sites with the terrain cross section.

To effectively use the RADWIN OLBC, you need to install the Google Earth browser plug-in. You do not need the Google Earth program unless you want to set your locations visually and cut and paste them to the RADWIN OLBC. See Appendix B for system requirement and installation details.

To use the RADWIN OLBC with the Google Earth program, see Appendix C.

User Input

You are required to enter or choose some or all of the following parameters. Depending on the product, some of the parameters have a default value that cannot be changed.

         Band, which determines frequency and regulation

         Channel Bandwidth

         Tx Power (maximum Tx power per modulation is validated)

         Antenna Type (cannot be changed for ODU with integrated antenna)

         Antenna Gain per site (cannot be changed for integrated antenna)

         Cable Loss per site (cannot be changed for integrated antenna)

         Required Fade Margin

         Rate (and Adaptive check box)

         Service Type

         Required Range - you may use latitude and longitude coordinates from the Google Earth program. See Appendix C.

Getting Started

What Browser?

The RADWIN OLBC has been tested to work with Microsoft Internet Explorer, Mozilla Firefox and Google Chrome under MS Windows XP, Vista or 7.

What Platform?

The RADWIN OLBC without the Google extensions works under Windows XP, Vista or 7 and also under Linux.

The RADWIN OLBC with the Google extensions will work under any operating system sup­porting the Google plug-in1.

Where is it?

The RADWIN OLBC is located in the RADWIN web site Partner Zone, under Tech Support.

On the page there is a link, Link Budget Calculator.

The RADWIN OLBC is located here: http://www.wireless-deployment.com/rad/

The RADWIN OLBC is located here: http://www.radwin.com/planner.

Running the RADWIN Online Link Budget Calculator

Point your browser to the OLBC at the above link. Click as indicated.

osc_00310.jpg

 

Navigate to the above link.The RADWIN OLBC is displayed.

osc_00230.png 

Choose the model with which you are going to work. If you are working with RADWIN 2000, continue to Chapter 2. For RADWIN 5000 HPMP go to Chapter 3. For WinLink 1000 skip to Chapter 4.

Note

At the bottom of each LBC window is a green gsc_00020.png   button. Clicking it will display this Technical Guideline.

1.   At the time of writing, Linux is not supported by the Google plug-in, however the Link Profile graphic does work.