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500 WATT RADIOBEACON TRANSMITTER
ND2000A-02x-xx0
Page 6-12
15 October 2004
Fig 6-9 PWM Ramp Integrator Output - CW
ƒ
pwm = 70 kHz, Zero Watt RF Output
Modulator Driver PWB-A4A2TP5 (dc coupled)
Fig 6-10 Mod Drive (PWM Output) - CW
ƒ
pwm = 70 kHz, 500 Watts RF Output
Modulator Driver PWB-A4A2TP6 (dc coupled)
Fig 6-11 Mod Drive Alarm Condition
ƒ
pwm = 70 kHz, Connector P6 Disconnected
Modulator Driver PWB-A4A2TP6 (dc coupled)
Fig 6-12 FWD Power Sample - MCW
ƒ
osc = 1020 Hz, 500 Watts, 95% Modulation
Monitor PWB - A10TP1 (dc coupled)
Waveforms - Off Air Troubleshooting (Sheet 3 of 4)