jp1_02

R
As Amended Through 15 March 2013
radar advisory — The term used to indicate that the provision of advice and information is
based on radar observation. (JP 3-52)
radar intelligence — Intelligence derived from data collected by radar. Also called
RADINT. See also intelligence. (JP 2-0)
radar picket — Any ship, aircraft, or vehicle, stationed at a distance from the force
protected, and integrated into a common operational picture for the purpose of
increasing the radar detection range. (JP 3-07.4)
radial — A magnetic bearing extending from a very high frequency omni-range and/or
tactical air navigation station.
radiation dose — The total amount of ionizing radiation absorbed by material or tissues.
See also exposure dose. (JP 3-11)
radiation dose rate — Measurement of radiation dose per unit of time. (JP 3-11)
radiation exposure status — Criteria to assist the commander in measuring unit exposure
to radiation based on total past cumulative dose, normally expressed in centigray. Also
called RES. (JP 3-11)
radio frequency countermeasures — Any device or technique employing radio frequency
materials or technology that is intended to impair the effectiveness of enemy activity,
particularly with respect to precision guided weapons and sensor systems. Also called
RF CM. (JP 3-13.1)
radiological dispersal device — An improvised assembly or process, other than a nuclear
explosive device, designed to disseminate radioactive material in order to cause
destruction, damage, or injury. Also called RDD. (JP 3-11)
radiological exposure device — A radioactive source placed to cause injury or death. Also
called RED. (JP 3-11)
raid — An operation to temporarily seize an area in order to secure information, confuse an
adversary, capture personnel or equipment, or to destroy a capability culminating with a
planned withdrawal. (JP 3-0)
railhead — A point on a railway where loads are transferred between trains and other
means of transport. (JP 4-09)
Rangers — Rapidly deployable airborne light infantry organized and trained to conduct
highly complex joint direct action operations in coordination with or in support of other
special operations units of all Services. (JP 3-05)
JP 1-02 237