PTP Range Calculator

Point-to-Point Range Calculator for BreezeNET® B300

User ManualSoftware Version: 1.5May 2009P/N

Legal Rights

Legal Rights© Copyright 2009 Alvarion Ltd. All rights reserved.

The material contained herein is proprietary, privileged, and confidential and owned by Alvarion or its third party licensors. No disclosure thereof shall be made to third parties without the express written permission of Alvarion Ltd.

Alvarion Ltd. reserves the right to alter the equipment specifications and descriptions in this publication without prior notice. No part of this publication shall be deemed to be part of any contract or warranty unless specifically incorporated by reference into such contract or warranty.

Trade Names

Alvarion®, BreezeCOM®, WALKair®, WALKnet®, BreezeNET®, BreezeACCESS®,

BreezeLINK®, BreezeMAX®, BreezeLITE®, BreezePHONE®, 4MOTION®,

BreezeCONFIG™, AlvariSTAR™, AlvariCRAFT™, MGW™, eMGW™ and/or other products and/or services referenced here in are either registered trademarks, trademarks or service marks of Alvarion Ltd.

All other names are or may be the trademarks of their respective owners.

Limitation of Liability(a) ALVARION SHALL NOT BE LIABLE TO THE PURCHASER OR TO ANY THIRD PARTY, FOR ANY LOSS OF PROFITS, LOSS OF USE, INTERRUPTION OF BUSINESS OR FOR ANY INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL DAMAGES OF ANY KIND, WHETHER ARISING UNDER BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE AND WHETHER BASED ON THIS AGREEMENT OR OTHERWISE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

(b) TO THE EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL THE LIABILITY FOR DAMAGES HEREUNDER OF ALVARION OR ITS EMPLOYEES OR AGENTS EXCEED THE PURCHASE PRICE PAID FOR THE PRODUCT BY PURCHASER, NOR SHALL THE AGGREGATE LIABILITY FOR DAMAGES TO ALL PARTIES REGARDING ANY PRODUCT EXCEED THE PURCHASE PRICE PAID FOR THAT PRODUCT BY THAT PARTY (EXCEPT IN THE CASE OF A BREACH OF A PARTY'S CONFIDENTIALITY OBLIGATIONS).

PTP Range Calculator ii User Manual

Important Notice

Important NoticeThis user manual is delivered subject to the following conditions and restrictions:

This manual contains proprietary information belonging to Alvarion Ltd. Such information is supplied solely for the purpose of assisting properly authorized users of the respective Alvarion products.

No part of its contents may be used for any other purpose, disclosed to any person or firm or reproduced by any means, electronic and mechanical, without the express prior written permission of Alvarion Ltd.

The text and graphics are for the purpose of illustration and reference only. The specifications on which they are based are subject to change without notice.

The software described in this document is furnished under a license. The software may be used or copied only in accordance with the terms of that license.

Information in this document is subject to change without notice. Corporate and individual names and data used in examples herein are fictitious unless otherwise noted.

Alvarion Ltd. reserves the right to alter the equipment specifications and descriptions in this publication without prior notice. No part of this publication shall be deemed to be part of any contract or warranty unless specifically incorporated by reference into such contract or warranty.

The information contained herein is merely descriptive in nature, and does not constitute an offer for the sale of the product described herein.

Any changes or modifications of equipment, including opening of the equipment not expressly approved by Alvarion Ltd. will void equipment warranty and any repair thereafter shall be charged for. It could also void the user's authority to operate the equipment.

PTP Range Calculator iii User Manual

Contents

PTP Range Calculator iv User Manual

Contents

1. Introducing the Point-to-Point Range Calculator ............................... 1

2. Installing the Calculator...................................................................... 1

3. Using the Calculator............................................................................ 1

4. The Path Visualizer ............................................................................. 5

5. Closing the Calculator......................................................................... 6

Introducing the Point-to-Point Range Calculator

1. Introducing the Point-to-Point Range CalculatorThe range calculator is an easy-to use tool that will help you calculate the required distance between the two point-to-point antennas in the radio link, and display in graph format the Fresnel zone which is the line of sight area between the two antennas.

2. Installing the CalculatorThe calculator is provided as a Java Archive (JAR) file. To run the jar file, you will need Java for Windows installed on your computer.

1 Download and install Java for Windows from the Java web site (www.java.com).

2 Run the RangeCalculator.jar file located in the BreezeNET B CD.

Select Help > About from the menu bar to open the About window. The window displays information about the application.

3. Using the CalculatorDouble-click on the RangeCalculator.jar file to open the calculator.

To view the calculator’s version number:

Figure 1: About Window

PTP Range Calculator 1 User Manual

Using the Calculator

1 In the calculator’s main window, enter the general parameters of the PTP connection and the site specific parameters (for Site 1 and Site 2), as follows:

Figure 2: Range Calculator - Main Window

Parameter Description Range Default

General Parameters

Band The band used by the PTP link, defining the range of frequencies.

4910..4990 MHz

5160..5240 MHz

5260..5340 MHz

5480..5700 MHz

5725..5845 MHz

5920..6060 MHz

5725..5845 MHz

Path type The type of environment for the PTP link.

Rural (LOS)

Suburban (NearLOS)

Urban (NLOS)

Rural (LOS)

General Parameters

Site specific parameters

Calculation results table



Bandwidth The channel width used for the PTP connection

5 MHz

10 MHz

20 MHz

40 MHz

20 MHz

Frequency The exact radio link frequency.

The range according to the band selected (in increments of 1 MHz)

5,800 MHz

Site Specific Parameters (Site 1 and Site 2)

Device Select the device used at each side of the radio link (with integrated or external antenna).

BU/RB-B300D-5X: a BreezeNET B300 device with an external antenna

BU/RB-B300-5X: a BreezeNET B300 device with an integrated antenna

BU/RB-B300D-5X

Max power (mW) Enter the maximum transmission power in milliwatts at each side of the radio link.

4.0-63.0 63

Antenna gain (dBi) Select from the list of available antennas the antenna used at each side of the radio link.

17 (Integrated Flat Panel)

22 (Integrated Flat Panel)

28 (2ft/60cm Flat Panel)

29 (2ft/60cm Solid Dish)

32 (3ft/90cm Solid Dish)

34.5 (4ft/120cm Solid Dish)

37.5 (6ft/180cm Solid Dish)

Enter gain value...




2 Click Calculate on the calculator’s main window. Alternatively, select Link > Calculate from the menu bar. The results of the calculation according to the specified parameters are listed in table format, as follows:

3 The results table displays for each bit transfer rate of the radio link, the worst, mean, and optimal distances (in kilometers) between the antennas in uplink (Site 1 → 2) and in downlink (Site 2 → 1). The bitrates depend on the selected bandwidth (5 MHz, 10 MHz, 20 MHz, 40 MHz).

You can export the results to a PDF file, or print it directly from the calculator.

1 Click Export on the calculator’s main window, or select File > Export from the menu bar.

2 Browse to the folder where you want the report saved.

3 Change the name of the file, as necessary.

4 Click Save. A PDF file is generated in the selected folder. The report displays all the parameters entered for the calculation, as well as the results table.

Feeder loss (dB) This is the signal attenuation between the ODU and the Antenna. For units with external antenna, nter the calculated loss at each side of the radio link according to the specific cable and length used in the deployment.

0-30 in increments of 0.5 dB.

For units with integrated antenna: 0.5 dB

For units with external antenna: 1.5 dB

Figure 3: Calculation Results

To export the results to a PDF file:



The Path Visualizer

1 Click Print on the calculator’s main window, or select File > Print from the menu bar.

2 Select a connected printer and click Print. The results are printed in report format. The report displays all the parameters entered for the calculation, as well as the results table.

4. The Path VisualizerThe path visualizer calculates and presents in graph format the Fresnel zone between the two antennas in the radio link. The calculation takes into account the selected distance between the antennas and the height at which the antennas are installed at each site of the radio link, as well as the earth’s curvature.

1 After calculating the distances between the antennas (see Section 3), select Link > Path Visualizer from the menu bar. The Path Visualizer window opens.

2 Initially, the graph displays the Fresnel zone for the selected frequency, with the default distance between the antennas and with the default height of the antennas at each site. The Path visualizer includes the following fields:

To print the results directly from the calculator:

To calculate the Fresnel zone:

Figure 4: Path Visualizer Window


Closing the Calculator

a Enter the distance between the antennas. Use the calculated table in the main window to select the optimal distance.

b Enter the height above sea level at which the antenna is installed at each site.

c Keep the red ellipse, which indicates the area between the antennas with line of sight, above the blue line, indicating the earth's curve. The values that best achieve this, are the optimal values for installing the antennas.

5. Closing the CalculatorSelect File > Exit to close the application.


Frequency The frequency selected in the main window.

- (Read Only) -

Distance (Km) The distance between the two antennas.

1-1,000 10

Base height (m): Site 1 and Site 2

The height above sea level at which the antenna is installed at each site.

0-no limit 10

NOTE

The graph display, as well as the scale of the X and Y axes change according to the values entered.The greater the distance between the antennas, the greater the earth’s curvature (displayed in blue)


PTP Range Calculator

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