Electrical engineers at Stanford built a cardiac device that uses a combination of inductive and radiative transmission of power, at about 1.7 billion cycles per second, to its coiled receiving antenna.

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Unlike ivi, which distributed grabbed local TV signals in New York, Seattle and other markets and routed them through its servers to subscribers, Aereo at least makes the technological pretense that its subscribers are receiving the signal from a tiny individual antenna equivalent to the rabbit ears that used to sit atop every TV set.

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For all intents and purposes, a consumer is still receiving a direct signal from the broadcaster through their own antenna and using it to record and watch programs for their own personal enjoyment.

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Celeno's CL1300 is the first solution of its kind to use 802.11 4x4 Implicit Beam Forming MIMO transmission technology to boost range and robustness independent of the receiving side Wi-Fi chipset technology (even single stream, single antenna Wi-Fi clients).

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To do that you need an antenna, and Aereo has a server farm that includes a rather large number of antenna so that each customer has one antenna, and the received signal is then piped through the Internet to a receiving client.

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The GPS antenna is on the back and pivots out to the top, turning on the GPS receiving capability.

FORBES: Magazine Article