The company I’m working with use a Sierra Wireless AirPrime HL7692 Cat-1 Cellular module. Via UART, I find I can place into continuous transmit modes (using command
at+wmtxpower) for 4G and 2G. But not for 3G. I just get ERROR back. Anyone have an inkling why?
The commands I’ve tried are
at+wmtxpower=1,1,9612,0\r for UMTS Band I Ch 9612 0 dBm tx,
at+wmtxpower=1,2,9262,0\r tfor UMTS Band II Ch 9262 0 dBm tx. Both I’d say are in accordance with
AirPrime_HL76xx_AT_Commands_Interface_Guide_Rev12_1.pdf pages 324-326.
I precede the command with an
ATI10\r. The response, is as below, including OK. The ERROR is from the eg
at+wmtxpower=1,1,9612,0\r command. I’ve tried also eg
at+wmtxpower=1,1,9612,0,0\r but likewise ERROR.