Specifications

Appendix C Link Budget Calculator Installation and Operation Manual
C-4 Using the Link Budget Calculator Airmux-200 Ver. 1.750
Figure C-5. Fresnel Zone
C.3 Using the Link Budget Calculator
The Link Budget Calculator comprises of one table where all the link parameters
are defined.
 To calculate the link budget
1. Select your system product from the dropdown list of products.
2. Select the rate from the dropdown list. The rate defines the air-interface rate
in Mbps. The system operates in TDD mode and has overhead of the air-
interface protocol and therefore the accurate actual throughput is provided in
the ‘Service’ Row and the effective Ethernet throughput is provided in the
‘Ethernet Rate’.
Throughput can be decreased as a function of range due to propagation delay.
The remaining fields are completed automatically depending on the product
selected in the product field. Standard Airmux-200 system parameters are
entered as default. Fields in blue boxes may be edited if non-standard
antennas and cables are used.
The Fade margin is the minimum margin that is required for LOS conditions.
For degraded link conditions, a larger fade margin should be taken into
account.
The Tx power EIRP for the system is given in dBm and Watts.
3. Type the required link distance and select units of distance, kilometers or
miles.
4. Select the general conditions.
5. Select the services required.
6. Click Calculate.
Note