distance covered with 31dbi grid antenna
Posted: Thu Jun 10, 2010 5:19 pm
anyone with an idea of how long would a ptp link using XR5 and 31dbi grid antenna cover.
Using this utility. http://www.afar.net/rf-link-budget-calculator/
You can plug in the TX power of your card: 23dB @ 54Mb
You can plug in the Antenna gains: 31dB on both ends.
Set the receive sensitive to -74 dB.
Once this is done you can adjust the distance to match what you want for your Fade Margin. I prefer 20dB fade margin which makes it about 20 Miles.
If you will be using 40Mhz channel you should drop the TX power to 20db.
-Louis