Configuration:
Ten RF
Power Modules (Power Modules each
comprise
eight broadband RF
Amplifiers and four modulators). Dual
exciters (comprising two
RF drive circuit boards and RF
drive amplifiers; two
modulator drive circuit boards; two
Low Voltage Power
Supplies).
Full automatic
changeover.
Power
Output:c
60,000 watts (Rated)
66,000 watts (Capable)
Six preset power levels
continuously adjustable
RF Frequency
Range:
531 kHz to 1,710 kHz
prefitted to one frequency as
ordered
RF
Terminating Impedance:
50 ohms unbalanced, 1 5/8
inch EIA O/P flange
RF Load VSWR:
9,550 peak reflected
Watts
(1.5:1 VSWR at rated
power, 100% modulation)
Type Of
Modulator:
NAUTEL Wideband
Interphase Pulse Duration
Modulator
Audio
Frequency Response:
+0.2 / -0.8 dB, 30-10,000
Hz, referenced at 1 kHz
Square Wave
Overshoot:
1% at 400 Hz (100
ms
risetime)
Square Wave
Tilt:
0.5% or less at 40 Hz
Audio
Harmonic Distortion:
Better than 0.8% (THD) at
95% modulation referenced at
1 kHz, 30-10,000 Hz
Audio
Intermodulation Distortion :
1% or less, 60-7,000 Hz
1:1 ratio SMPTE standards at
95% modulation
TIM Test:
0.5% 2.96 kHz/8 kHz, 30
kHz BW, 80% modulation
Incidental
Quadrature Modulation :
36 dB or better (40 dB
typical) below 95% modulation at
30 Hz – 10,000 Hz
Modulation
Capability:
145% positive peak
program modulation at rated
(60 kW)
125%positive peak program
modulation at capable
(66 kW)
Carrier
Shift:
Not exceeding 0.5%
RF Harmonic
and Spurious Outputs:
80 dB or more below rated
power
Noise and
Hum (Unweighted):
65 dB or more below 100%
modulation at rated power
Frequency
Stability:
+ 5 Hz over temperature range
Audio Input:
600 ohms active balanced, adjustable 0 to
+12 dBm
100% modulation
Power Input:
Three Phase, 50 Hz or 60 Hz, to customer
specifications
Permissible
Power Supply Variation:
Operational + 10% voltage, 47 to 63 Hz
Power
Consumption:
50 kW, 0% modulation - 59,524 W
50 kW, 100% modulation -
89,286 W
60
kW, 0% modulation - 71,429 W
60 kW, 100% modulation -
107,143 W
Power
Factor:
0.98 typical
Overall
Efficiency:
84 % typical
Metering:
Forward/Reflected Power
DC Current/Voltage
Local and
Remote Control:
Transmitter ON/OFF
Exciter Selection A, B
Power Level Selection 1, 2, 3, 4, 5, 6
Power Adjust
Alarm Reset
Diagnostics:
Front Panel LED
Diagnostic Status Flow Diagram
Remote
Monitoring
Forward/Reflected Power, Status of Critical
Parameters
Ambient
Temperature:
0°
C to 50°
C, derate 3°
per 500 m
(2°
per 1,000 ft above sea level)
Humidity
Range:
0-95% non-condensing
Altitude:
0 - 4,000 m, (0 - 13,000 ft)
Safety:
Meets IEC215 specifications
Size:
276 cm wide x 122 cm deep x 187cm high,
3.37 m2
floor space
108.5 in. wide x 48 in. deep x 73.5 in.
High,
9.22 ft2
floor space
Weight:
1750 kg (3,850 lbs) approximately
DOC
(Canada):
Type Approval 276502103
FCC (USA):
Type notified for 50,000 watts
(variable 10,000-66,000 watts). No. B3WXL60
DIGITAL
COMPATIBILITY
Audio
Frequency Response:
+0.2/-1.5 dB, 30-15,000 Hz referenced at 1
kHz
Audio
Harmonic Distortion:
Better than 0.8% (THD) at 95% modulation
referenced at
1 kHz, 30-15,000 Hz
Incidental
Quadrature Modulation :
35 dB or better, 30-15,000 Hz
Group Delay Variation:
±3 µs or better, 200-15,000 Hz
Transmitter
Linearity Tests (J3E Mode of Operation)
Intermodulation Product:
-45 dB or better: 4 kHz/5 kHz equal
amplitude tones
-45 dB or better: 4 kHz/5 kHz tones, 5 kHz
-1 dB relative to 4 kHz
-60 dB or better: 5 kHz/8 kHz tones, 8 kHz
-30 dB relative to 5 kHz