Technology and Gadget Information

Bluetooth is a radio or wireless technology designed for short range data communications in the Industrial, Scientific and Medical (ISM) band. The frequency range is from 2.402Ghz to 2.480Ghz, with the available frequency spectrum being broken up into 79 x 1Mhz wide bands.

Bluetooth was designed by Ericsson as a short range wireless connectivity solution and is used to build Personal Area Networks, or PANs as they are known so that devices in close proximity can pass information. Typical examples being a mobile phone downloading data to a Personal Computer or a mobile phone earpiece communicating with the phone itself. (more…)

Frequency Considerations for Recreational 2 Way Radios

If you are in the market for 2 way radios for personal use, you have an immediate and important choice to make: What radio frequency band do you require?

Frequency! 2 way radios obviously utilize ‘wireless’ communication methods so when using a 2 way radio you are transmitting and sending your message through the air — the same air that is currently carrying television signals, commercial radio signals, Ham radio signals and literally thousands of signals from other private 2 way radios. The Federal Communications Commission (FCC) has the job of controlling all of these communication signals so they don’t run into each other; to accomplish this they have reserved frequency bands for use by certain types of communication (signal sending) devices. There are two frequency bands in use for recreational 2 way radios, these are called Family Radio Service (FRS) and General Mobile Radio Service (GMRS). (more…)