EIRP stands for Effective isotropic radioated power , the power which is radiated out from antenna .Every country has different EIRP limitations.
Power calculation 10s and 3s rule will play important rule in EIRP calculation, For every 3db increase in power the transmit becomes double , to calculate EIRP add all gains and deduct losses from radio to antenna .
let us say radio has a tx power 25dbm and it is attached to the antenna woth the gain 3 dbi .
25 dbm in mw will be approx 250 mw and with no other losses , the EIRP i this case will be 25+3 = 28dbm or 500mw.
If there is some losses in the physical connections lets say 1db then EIRP will be 27dbm.
To limit the EIRP the transmit power of radio and antenna gain has to be adjusted.
Power calculation 10s and 3s rule will play important rule in EIRP calculation, For every 3db increase in power the transmit becomes double , to calculate EIRP add all gains and deduct losses from radio to antenna .
let us say radio has a tx power 25dbm and it is attached to the antenna woth the gain 3 dbi .
25 dbm in mw will be approx 250 mw and with no other losses , the EIRP i this case will be 25+3 = 28dbm or 500mw.
If there is some losses in the physical connections lets say 1db then EIRP will be 27dbm.
To limit the EIRP the transmit power of radio and antenna gain has to be adjusted.
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