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u-blox / c209-aoa-tag

Bluetooth Direction Finding Tag sample application. Works with u-connectLocate.
https://www.u-blox.com/en/technologies/bluetooth-indoor-positioning
Apache License 2.0
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Transmit power AT command seems to have no effect #16

Closed sdetweil closed 2 years ago

sdetweil commented 2 years ago

I am trying to deal with what appears to be severe multi-paths issues in our test env.

so I was advised to turn down the transmit power..

the tag SW has an AT command for that.. but none of the choices seem to make any difference I don't have any electronic equipment to actually check the signal strenth..

I would have expected -40 (lowest valid value) to be almost not heard..

sdetweil commented 2 years ago

well, I should have looked at the code 1st..

it SAVES the new power level for NEXT POWER ON cycle.. (which I don't do)

changed to save and then apply live.. we shall see... now to reflash every tag

sdetweil commented 2 years ago

now at least the TX power is set. -40 and -30 too low in my env... at -20 have signals.. but net results not different..

sdetweil commented 2 years ago

i see the doc in the u-connect locate says txpwr needs a reset ofter changing

sdetweil commented 2 years ago

closing, user error