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54 Pathfinder Radar Scanners
11S Transmitter - 10 kW
Input Voltage 20 - 44 V DC (from display unit)
Power Consumption 11 W Standby
80 W Typical operation in light winds
117 W Max. operation in 50 Kt winds
179 W Max. operation in 100 Kt windS
Transmitter Frequency 9410 +/– 30 MHz
Peak Power Output 10 kW (nominal)
Transmitter Solid state modulator driving magnetron
Pulse Length/PRF
Pulse Length/PRFPulse Length/PRF
Pulse Length/PRF
Normal
Expanded
Range
(nm)
Pulse Length
(
µ
µµ
µ
S)
PRF
(Hz)
Bandwidth
(MHz)
Pulse Length
(
µ
µµ
µ
S)
PRF(
Hz)
Bandwidth
(MHz)
0.125 0.065 3000 12 0.09 3000 12
0.25 0.065 3000 12 0.09 3000 12
0.50 0.09 3000 12 0.15 3000 12
0.75 0.15 3000 12 0.25 3000 12
1.50 0.35 2000 3 0.45 1600 3
3.00 0.45 1600 3 0.60 1200 0.7
6.0 - 72 1.20 740 0.5 - - -
Standby Mode Magnetron heater and control left on, all other services off
Duplexer Circulator with integral limiter
72" Antenna
Antenna Type Slotted waveguide array
Beam Width (nominal) 1.15°
Polarization Horizontal
Antenna Side lobes Less than -25 dB
Rotation Rate 24 rpm (nominal)
154_4.book Page 54 Wednesday, October 25, 2000 3:02 PM