Synonym radiation angle.

1. The expression of the stated power available at the output terminals of a transmitter when connected to the normal load or its equivalent.
2. Under specified ambient conditions, the expression of the power that can be delivered by a device over a long period of time without overheating.

1. In telephony, all cables, conduits, ducts, poles, towers, repeaters, repeater huts, and other equipment located between a demarcation point in a switching facility and a demarcation point in another switching facility or customer premises.
Note: The demarcation point may be at a distribution frame, cable head, or microwave transmitter.
2. In DOD communications, the portion of intrabase communications equipment… (Read More →)

See direct outward dialing.

1. The attribute of an optical fiber, the cross section of the core or cladding of which deviates from a perfect circle.
2. In an optical fiber, the degree of deviation, from perfect circularity, of the cross section of the core or cladding.
Note 1: The cross sections of the core and cladding are assumed to first approximation to be… (Read More →)

Operator Virtual Connections

Providing electronic key via over-the-air rekeying, over-the-air key transfer, or cooperative key generation. [INFOSEC-99]

Electronically distributing key without changing traffic encryption key used on the secured communications path over which the transfer is accomplished. [INFOSEC-99]

Changing traffic encryption key or transmission security key in remote crypto -equipment by sending new key directly to the remote crypto-equipment over the communication path it secures. [INFOSEC-99]

A radar system that makes use of the atmospheric reflection and refraction phenomena to extend its range of detection beyond line of sight. Over-the-horizon radars may be either forward scatter or backscatter systems. [JP 1-02]