Its LED blinks close to every three seconds, but Im sure its the "Not Registered" timing.
I couldn't get a hold of an ITead Studio representative to find out if its unlocked, but when I called Rogers Wireless they said that if the SIM900 module isn't manufactured for a specific carrier it shouldn't be lock. And I assume they would provide me with an unlock code if it was locked.
The antenna should be fine, it was the one supplied by ITead studio. I even tried connecting with an external SMB connector and a cable to bring the antenna further away from the module in case of any interference with the SIM900 module as Boris Landoni recommended in another forum.
I am using a 9V 1.5 A power adapter so it should be giving me about 13.5 Watts. It should be enough power.
I tried connecting to the module via MAX232N serial to Serial 232 connection. I have the MAX232N IC in this connection:http://sodoityourself.com/max232-serial-level-converter/
and I had a serial 232 to usb cable on the other end. I was able to receive message from the SIM900 module, but any AT commands I sent the other way seemed to have no effect.
I was wondering if I need a new SIM card with a new account to register the unique IMEI number but Rogers Wireless said that it should automatically register my module on their network.
I tried adding data to my plan in case that would work, but it did nothing. Tried multiple Arduino boards and now I now of another person with the same problem using the same Module. Theres a new GSM library version, I think Im going to try that next.
Either that or try ordering a seeed studio module instead.