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I want to force my cellular modem to transmit at maximum power so that I can see if that is the cause of microSD card crashes that I have been experiencing in an embedded application.
My modem is a ublox U-260, and the AT command manual for it is here.
I know that the modem "throttles" its transmission power based on the intensity of the received signal (from the cell tower) so you can force the modem to transmit at maximum intensity by putting it somewhere with poor cell reception.
I have been unable to get my cell reception to be bad, however, as there are a number of cell phone towers nearby.
So, seems to me there are two options:
Physical solution: Attenuate cellular signals arriving from cell tower to modem via some type of physical solution
Software solution: Force the modem to transmit at maximum power levels regardless of strength of received signal by configuring it to do so via AT command (software solution)
So, anyone out there know how to implement one of these solutions? I have tried building a faraday cage around the modem by lining the enclosure that it's in with aluminum foil and attaching an alligator clip to mains ground.