The SIM card doesn't contain the radio, the phone itself contains the radio. Phones can only transmit on a fairly narrow set of frequencies, you can't tune one

The SIM card doesn't contain the radio, the phone itself contains the radio. Phones can only transmit on a fairly narrow set of frequencies, you can't tune one to an arbitrary frequency in the gigahertz range. If you want to transmit on an arbitrary frequency you'll need to buy a software defined radio, like the HackRF http://www.kr4.us/HackRF-One.html?gclid=CJGdyMDLqtQCFYGUfgodhdkE_A http://www.kr4.us/HackRF-One.html?gclid=CJGdyMDLqtQCFYGUfgod...