somespirit
New Member
hi there- i have a 10mw module which quotes its range with a 2.1dBi antenna. it has an RP-SMA connector. i've seen that antennas are readily available at 3dBi, 5dBi, 7dBi ...
simply put, what does this mean? guesswork would dictate that (since it's a dB scale), each 3dB of antenna 'gain' would double effective output power, but how is this possible without increasing 'actual' output power? (the antennas are unpowered). do these antennas make the emission pattern ovoid, increasing effective output at the expense of output axial to the antenna..? any help would be appreciated.
simply put, what does this mean? guesswork would dictate that (since it's a dB scale), each 3dB of antenna 'gain' would double effective output power, but how is this possible without increasing 'actual' output power? (the antennas are unpowered). do these antennas make the emission pattern ovoid, increasing effective output at the expense of output axial to the antenna..? any help would be appreciated.