When I bring up my QCA9377 as an AP in the 2.4GHz band, observations of the beacon output power level are constant (looking at beacon burst power vs time on a spectrum analyzer set for zero span).
However, when I bring up the modem as a 5 GHz AP -- the output power of the beacon is initially ~ +15 dBm but then drops by 20 - 30 dB. It then remains in this low power state during testing.
Is this normal? I am having difficulty explaining why this would occur. I am in the US - tx power max is +23 dBm.
I am not using power control, DFS, etc. Simply setting the modem up for 802.11a operation.
Has anyone else experienced/seen this before? I assumed the beacon burst power would be constant and at the maximum power level.