Hi, I have found out that TD1208 in default setting uses just small portion of sigfox spectrum. While other modules uses all frequncies aprox. 868.034 - 868.226MHz.
I checked this behavior on spectrum analyzer.
TD1208 based SigFox "keyApp" also hopping over all possible spectrum.
via command AT$IF? I found that standard firmware uses 200 slots with central f 868.130MHz while Sgf KeyApp 960 slots
via AT$IF=868130000,960,100 I can manage shift usage to lower part of band but obviously hopping mechanism newer go over slot 200.
I used in my code
TD_SIGFOX_FrequencyConf (868130000,960,0,100);
..but with same result...
so I need somehow tell sigfox library to hop over 960 instead 200 slots, but I didn't find anything in reference
I hope that reason is obvious I just wondering why it is set like that by default
cheers and thank you for help