SmartBridges sB3210 - Manual (Page 40)

Page 40 of 55
airPoint™ Nexus User Configuration Guide
i n t e l l i g e n t w i r e l e s s p l a t f o r m
Figure 5-8 Throughput Test Result
5.4. Link Budget Planning
Link Budget Planning is a very useful tool for link budget estimation. The Link Budget Planning
Calculator can be accessed from the navigation menu bar ’Tools| Link Budget Planning Calculator’
drop down menu.
A GPS Calculator is provided in the Link Budget Planning Calculator page to calculate the distance
between two airPoint™ stations. To calculate the distance, follow the steps below:
1. Enter the GPS co-ordinates of Station 1 (Lattitude1 and Longitude1) and Station2 (Latitude 2
and Longitude 2). GPS co-ordinates may be entered in DD: MM:MM or DD: MM: SS.SS
formats
2. Select the distance units (miles or kilometers)
3. Click the ’Compute Distance’ button to calculate the distance between the two stations.
4. The distance will be displayed in the Distance text box.
Figure 5-9 Link Budget Planning Calculator GPS Calculator
Once the distance is computed, the user can do the link budget calculations as follows:
1. Select the radio mode for station 1 and 2.
2. Enter the transmit output power in dBm for station 1 and 2.
3. Enter the antenna Gain in dB for station 1 and 2.
4. Enter the Cable Losses in dB for station 1 and 2.
5. Click the ’Compute Link Budget’ button to calculate the link budget information.