Satellite Internet Forum.

Welcome, Guest.
Welcome to this satellite broadband discussion forum. Wherever you are and whatever your problem we are here to help each other. Connecting to the internet via satellite is not always easy but is critically important to those in remote places or with poor terrestrial infrastructure. Both service providers and customers are encouraged to contribute. If you are showing as 'Guest', please register at the bottom of this home page if you wish to contribute or ask question. May 2018: GDPR: Updates to Privacy and Cookies policies: As you may know, a new EU data protection law called GDPR will apply from Friday 25th May 2018. As part of satsig's commitment to protecting the privacy of site visitors and forum members, I have therefore updated the Privacy and Cookie policies. There are now links leading to these policies: Disclaimer, Terms of Use and Privacy, Forum User Agreement, Forum Rules and Cookies at the bottom of the home page and all forum pages. Read the Forum rules.

Satellite Internet forum › Dish pointing and alignment › How to Check the Line of Sight of a VSAT

Pages: 1

Send Topic | Print

How to Check the Line of Sight of a VSAT

(Read 5438 times)

Ex Member

Ex Member

Aug 8^th, 2011 at 10:01am

To calculate the line-of-sight you will need to do some basic mathematics. You will be shown how to use the Microsoft Windows Calculator to perform the necessary calculations.

Where X is the height of the obstruction in front of the antenna and Y is the distance between them.
For example, if the obstruction is 8 meters high and 32 meters away from the antenna, you will need to perform the following calculation: arc tan (8/32) = angle

Use the Microsoft Windows Calculator to calculate your line-of-sight as follows:

1) Navigate to your windows calculator.
2) Choose View then Scientific.
3) Enter the height of the obstruction in meters and divide it by the distance in meters.
4) Choose the equals function.
5) Check the Invert box.
6) Choose the Tan function.
7) The result will be the minimum angle of your true elevation in degrees.
8 ) This angle should be lower than the true elevation angle of your antenna.
If you do not achieve a clear line-of-sight, relocate the antenna until this is achieved.

« Last Edit: Apr 14^th, 2015 at 6:41pm by Admin1 »

IP Logged

Ex Member Ex Member	Reply #1 - Aug 16^th, 2011 at 10:13am Or you can use this online tool... http://www.satellite-calculations.com/Satellite/Elevation.htm
Back to top	IP Logged

Pages: 1

Send Topic | Print

Disclaimer, Terms of Use and Privacy Forum User Agreement Forum rules Cookie policy.