An asymmetric cryptographic algorithm whereby (a) messages encrypted using the public key can only be decrypted by using the private key, and (b) data that are encrypted using the private key can only be decrypted by using the public key. [After X9.31]

In telephone networks, a means of controlling distant switching selections by pulsing.
Note: In revertive pulsing, the near end receives signals from the far end.

Also rf. Abbreviation for radio frequency. Of, or pertaining to, any frequency within the electromagnetic spectrum normally associated with radio wave propagation.
Note: For designation of subdivisions, see electromagnetic spectrum and its associated diagram.

See occupied bandwidth, necessary bandwidth.

1. The amount of transmitter power above that which is computed by the link designer as the minimum required to meet specified link performance.
Note: The rf power margin allows for uncertainties in (a) empirical components of the signal level prediction method, (b) terrain characteristics, (c) atmospheric conditions, and (d) equipment performance parameters.
2. At any given time in an… (Read More →)

Offering a high degree of electromagnetic shielding effectiveness.

Abbreviation for Request for Comments. The document series, begun in 1969, which describes the Internet suite of protocols and related experiments. Not all (in fact very few) RFCs describe Internet standards, but all Internet standards are written up as RFCs. [Bahorsky]

Abbreviation for radio frequency interference. See electromagnetic interference. Abbreviation for remote failure indication.

Residential Gateway

Abbreviation for red-green-blue. Pertaining to the use of three separate signals to carry the red, green, and blue components, respectively, of a color video image.
Note: The image is not NTSC-encoded; RGB typically results in higher resolution than that specified by the National Television Standards Committee.