These probably indicate hidden cameras in every chamber of this cavern complex, transmitting via low-power signals to the data recorders in the Oracle casing.

RG-58/U is a type of coaxial cable often used for low-power signal and RF connections.

In this case, switches with high isolation, 90 dB or more, will keep the measurement integrity of the low-power signal.

Brennan said the low-power signal is enough for the market it wants to reach, but declined to say if One-On-One would eventually upgrade it.

Advances in technology have made it relatively inexpensive to broadcast low-power signals, although Federal regulations now bar such broadcasting without a license.

The low-power signal is intended primarily for commuters within the 494/694 beltway to take advantage of the stronger signal reception of a car stereo.

In 2003, the station added a low-power (8-watt) signal on 106.5 MHz FM overnight and on weekends.

The station was founded in 1967 as KRUZ, broadcasting a very low-power signal from the basement of the Stevenson College dorms.

I think one or two small cities are still transmitting these low-power signals--areas that may have been protected by orbiting platforms.

Spread-spectrum broadcasts are low-power signals across a broad band of frequencies from 902 to 928 megahertz.