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The second is a link to the article that details that symbol, using its Unicode standard name or common alias. (Holding the mouse pointer on the hyperlink will pop up a summary of the symbol's function.); The third gives symbols listed elsewhere in the table that are similar to it in meaning or appearance, or that may be confused with it;
The HD radio and satellite systems provides a data path for this programming data to be delivered and read by the listener in near real time. HD radio and satellite radio receivers provide PAD decoders and visual screens for displaying the information. PAD is different from Radio Data System (RDS) which is only used on analog stations.
Hazard symbols; List of mathematical constants (typically letters and compound symbols) Glossary of mathematical symbols; List of physical constants (typically letters and compound symbols) List of common physics notations (typically letters used as variable names in equations) Rod of Asclepius / Caduceus as a symbol of medicine
AF (alternative frequencies list) This provides the receiver with a list of frequencies that allows a receiver to re-tune to a different frequency providing the same station when the first signal becomes too weak (e.g., when moving out of range). Before performing the switch, a radio will check for a matching PI code to ensure the AF is the ...
Also AM radio or AM. Used interchangeably with kilohertz (kHz) and medium wave. A modulation technique used in electronic communication where the amplitude (signal strength) of the wave is varied in proportion to that of the message signal. Developed in the early 1900s, this technique is most commonly used for transmitting an audio signal via a radio wave measured in kilohertz (kHz). See AM ...
Rig control companion program Flarq: Automatic Repeat reQuest companion program for Fldigi GNU Radio: GPL: Windows, macOS, Linux: software-defined radio and signal processing SDRangel: GPL: Windows, macOS, Linux: software-defined radio SDR# Freeware Windows software-defined radio receiver SDR++: GPL: Windows, macOS, Linux, Android: software ...
Digital audio radio service (DARS) is any type of digital radio program service. In the United States it is the official FCC term for digital radio services. The most popular type of DARS in the U.S. and Canada is SDARS (Satellite Digital Audio Radio Service), used by Sirius Satellite Radio and XM Satellite Radio. XM and Sirius both operate in ...
If you can understand everything easily, the station will rate a 4 or higher. If you have to work hard, but can understand everything '3' is the appropriate rating. If you cannot understand everything although you put great effort into it, a '2' is appropriate, and if you cannot understand the programming at all '1' is the appropriate rating.