I want to decrease and later increase the range of my HC12-Module to a certain point with the “AT+P<1-8>” command. When i tried it the HC12 sent a “OK-P<1-8>” and when i checked it showed me the right configuration. But while testing i realized that it made no difference for me if im sending at the highest transmission power(+20dBm) or the lowest (-1dBm).
So my questions are :
Am I using the “AT+P<1-8>” correctly ?
Should there even be a noticable range difference from -1dBm to 20dBm?
Any tips on how to solve this?
Thanks in advance