I've configured an AIR-BR1310G-E-K9 today as an access point. This model has the integrated antenna.
I noticed in the GUI the maximum transmit power was only 5mW. The CLI backed this up:
hostname(config-if)#power local ofdm ?
<1 - 5> One of: 1 5
maximum Set power to allowed maximum
I didn't see any settings for antenna gain. 5mW seems very low, compared to my 1231, which can be configured to 50mW.
Am I missing something?