What is the max duration for the BC660K-GL to search for an operator, when privileged operator and frequency band are set to auto, having good coverage?
When the modem has detected a provider once, it will connect within 10s. Even after power off.
But after a provider/simCard exchange this takes at least 15min. Is this normal behaviour?
Make sure that you have a minimum frequency range to search.
I am based in Brazil, and I set the QBAND like this:
Band 28 for NB-IoT here in Brazil, reduces considerably the search time.
In the past, I was using more bands, and that took a quite long time.
To make sure about your case, you must go through your country’s frequency regulation to see what frequencies are allowed and so on.
Tip: if you are flashing your module every time, I recommend checking my suggestion here: faster network registration after reflashing
Thanks for the advice!
I optimized frequency range for Germany and got much faster connection.
These are the bands typicaly used worldwide:
// Frequency Bands “,<BAND_1>,<BAND_n>”
#define FREQUENCY_BANDS_AUTO “0”
#define FREQUENCY_BANDS_GERMANY “2,8,20”
#define FREQUENCY_BANDS_EUROPE “3,3,8,20”
#define FREQUENCY_BANDS_ASIA “3,3,8,28”
#define FREQUENCY_BANDS_NORTH_AMERICA “3,4,5,12”
#define FREQUENCY_BANDS_WORLD “7,3,4,5,8,12,20,28”