Fichas

Radar

Alec Goenner Inglés 13 fichas

Fichas del conjunto (13)

1Radar surface angular measurements are normally made in a clockwise direction from what position?True North
2The line from the Radar set directly to the object is referred to as the what?Line of Sight
3The angle measured clockwise from true north in the horizontal plane is called the what?True Bearing
4What is the speed of light?186,000 statute miles per second
5The Navy uses NAUTICAL MILES to calculate distances; 186,000 statute miles is approximately _____________ nautical miles.162,000 nautical miles
6What is the distance of a statute mile?5,280
7What is the distance of a nautical mile?6,080 ft.
8Radar timing is usually expressed in microseconds. Radiated energy from a radar set travels @ approx how many feet per microsecond?984 feet per microsecond
9How much time does it take for radar energy to travel one nautical mile?6.18 microseconds
10What is a radar mile?12.36 microseconds
11The 2 most important times in minimum range are what?pulse width and recovery time
12The ____________ of the pulse determines what maximum range the pulse can travel to a target and still return a usable echo.peak power
13The frequency of the rf energy in the pulse radiated by a radar is referred to as the _____________ of the radar system.CARRIER FREQUENCY