Once an animal has been outfitted with a transmitting device, the towers can track its unique radio signature and, by a process of triangulation, indicate where it is on the island, whether it's moving or at rest, what other radio-endowed individuals it encounters.
§ 90.185 Multiple licensing of radio transmitting equipment in the mobile radio service.
A Wi-Fi radio transmits these movements to the phone.
A small radio transmits a live football game.
So, should the FAA allow the use of cellphones and other transmitting devices on board?
The basic philosophy of the No Division Duplex [2, 3] is that a radio device can transmit and receive on the same frequency at the same time; more explicitly, it can operate in a full-duplex fashion.
The sedans will be outfitted with DSRC short-range radio communication devices to transmit and receive simple messages, including vehicles' GPS location, speed and heading.
As in the work of Zhang et al. [27], a mote of Crossbow MICA2DOT with a Chipcon CC1000 radio device consumes 28.6 uJ and 59.2 uJ for receiving and transmitting one byte of packet, respectively.
Spy cameras, radio devices and earpieces that transmit questions and receive answers have been found hidden in jewellery, spectacles, wallets, pens, rulers and underwear.
Finally, for devices powered by small batteries or by energy scavenging, the use of a radio for transmitting packets results in a serious decrease in network lifetime.
