I use the Mbili for data acquisition of a beehive. The Mbili is sending the data every hour on ThinkSpeak service. From time to time I have a intermittent supply of data from my Mbili. Sometime it happens that I don't receive for couple of hours, or it stop sending data, and I have to manually reset the Mbili. The data is loging on the SD card every hour (in the log file), so I suppose I have a problem of weak GSM - GPRS signal. It the time the Mbili don't send the data, the SIM card won't eaven start a Internet connection...
My question is, is there a command to check a "strength" of a GPRS signal, so I can check the signal all the time I take data and write it on the log file?
Another question is, can I put some other antenna to the GPRSbee (my bee doesn't have a sma connector, it have some plug connector for antenna...).