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LARGE ANTENNA’S |
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LONG RANGE |
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LOW DATA RATE |
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LESS PRECISE IN RANGE AND ANGLE |
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CHEAP HARDWARE |
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EARLY WARNING / SEARCH RADARS |
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SMALLER HARDWARE AND ANTENNA’S |
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REDUCED RANGE |
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GOOD ANGULAR AND RANGE RESOLUTION |
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MORE EXPENSIVE |
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WEAPON CONTROL ( TT / FC ) RADARS |
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TIME BETWEEN LEADING EDGES OF 2 PULSES ( msec ) |
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LONG PRI; LONG RNG SEARCH RDR |
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MEDIUM PRI; TGT ACQUISITION RDR |
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SHORT PRI; WPN CONTROL RDR |
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KEY IDENTIFYING PARAMETER FOR APR-39 |
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STABLE PRI NO TIME
VARIATION BETWEEN PULSES |
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STAGGERED PRI PRI
VARIES WITH A SIMPLE REPEATING PATTERN |
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JITTERED / WOBBLING PRI PRI
VARIES WITH SEMI-RANDOM, SINUSOIDAL, OR TRIANGULAR PATTERN |
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SWITCHER / CYCLER RDR DWELLS ON
ONE PRI TYPE FOR SHORT PERIOD THAN CHANGES PRI TYPE |
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PRF IS THE INVERSE OF PRI WITH FIXED PULSE
DURATION |
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HIGH PRF’S USED FOR SHORT RANGE / WPN CONTROL
RADARS |
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HIGH DATA RATE |
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AMBIGIOUITY OF RANGE DATA ( STAP) |
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