Questions and Correct Answers |
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Bearing - 🧠ANSWER ✔✔direction form which reflected signal is received
Range - 🧠ANSWER ✔✔measured by noting the time it takes a signal to
make a round trip to the target and back. The distance between any given
point and an object or target
Amplitude - 🧠ANSWER ✔✔measure of wave energy level
, cycle - 🧠ANSWER ✔✔one complete reversal of an alternating current
starting at zero and going through a positive peak and back to zero
wavelength - 🧠ANSWER ✔✔space occupied by one cycle
refraction - 🧠ANSWER ✔✔bends the initial signal or incident wave toward
the denser medium. Changes direction and velocity.
diffraction - 🧠ANSWER ✔✔sometimes allows radar to detect a ship that is
located on the opposite side of an island or aircraft flying behind mountain
peaks
attenuation - 🧠ANSWER ✔✔generic term used to describe reduction in RF
wave strength due to the scattering of waves or absorption of waves, less
of wave energy to medium through which it is traveling
absorption - 🧠ANSWER ✔✔caused by water vapor, tree foliage,
atmospheric molecule
scattering - 🧠ANSWER ✔✔smoke dust water droplets and wind born sand
non-metal contacts - 🧠ANSWER ✔✔may not be picked up by radar.
lookouts are needed to spot these boats to prevent any accidents