Does anyone know what the modems power consumtion is at 12V. The documentation says 1.7A at 5.5V. But what is it at 12V?
And can I measure this “peak” current? (Connecting an ammetre in series when powering the modem at 5.5V or 12V gives an answer in mA around 60mA and 90mA respectively but the modem cannot RX (sms’es). When the ammetre is removed the modem can receive SMS’es just fine.)