HL7812 TXPOWER OUTPUT on GMS/GPRS

I would like to test the GSM 850 - 33dBm TX output on my HL7812 device, I cannot get AT+WMTXPOWER command to work once I have AT+KSRAT=2 set. seems like the txpower command only works on LTE bands.

Any suggestions for testing max power output on device to load the Host PCBs power supply? I am located in the US and there is no 2G network available to test out.

do you have a network simulator (e.g. CMW500) to observe actual output power in GSM mode?

I don’t quite see it is for GSM band:

I have just checked internally, there should be another way to set TXPOWER for GSM with another internal command. (cannot disclose here)
Please contact distributor to get support on this.