TM ll-5895-1412-12&PREFERENCE INFORMATION (CONT’D)ICOSITE PLAN - Provides frequency separation from 0.5 to 5 MHz so that nets inclose proximity can communicate simultaneously without mutual interference.CUE FREQUENCY - A frequency used to bring a user into a net. The frequency isin the range of 30.000 MHz to 87.975 MHZ and is divisible by .025 MHz.DATA TRANSFER DEVICE (DTD) - A small hand-held computer which will be used forthe storage and transfer of BGU-generated items; callsigns, frequencyassignments, SINCGARS TRANSEC variables, suffixes and expanders, signs andcountersigns, and pyrotechnics, smoke signals, call words, and COMSEC keys.EXPANDER - Used with a call sign suffix to identify a sub-element of theposition, mission or function identified by the suffix.FREQUENCY - The number of reoccurrences of a periodic phenomenon in a unit oftime.In specifying electrical frequency, the unit of time is the second, thefrequency is expressed in hertz (Hz) (meaning cycles per second). Radiofrequencies are normally expressed in kilohertz(KHz) at and below 999kilohertz, and in megahertz (MHz) above this frequency.FREQUENCY ASSIGNMENT - A designated radio frequency for use by a specificradio net during a certain period of time.FREQUENCY RESTRICTION - partially restricts the use of an available frequency.Designated within the BGU by the letters A-P.FREQUENCY SHARING - Allows different nets to be assigned the same frequencyfor each time period.HERTZ - A unit of frequency equivalent to one cycle per second.HF - High-frequency (2.000-30.000 megahertz).HOPSET - A set of frequencies that a frequency-hopping radio uses when in thefrequency-hopping mode.ITEM NUMBER IDENTIFIERS - an aid that provides a rapistation identity.LF - Low-frequency (0.0001- 1.9999 megahertz).d and general means ofTheMANUAL FREQUENCY - A frequency used for filling a radio remotely.frequency is in the range of 30.000 MHz to 87.975 MHZ and is divisible by .025MHz .MEGAHERTZ (MHz) - A unit of frequency equal to 1,000,000 hertz (cycles persecond).NATIONAL SECURITY AGENCY (NSA) - The agency, functioning under the Departmentof Defense, which monitors the entire United States SIGINT (SignalsIntelligence) collection and processing effort. NSA is responsible forresearch and development efforts and initial production procurement of BECS.1-11
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