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SSM Series Solid-State Modulators Specifications  
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Specifications
 
 
 

 

Specifications-- SSM Series Solid-State Modulators

Electrical

  

Audio
Audio Response (A3E)
+/-1 dB from 50 Hz to 7,500 Hz
 
Audio Response (H3E & R3E)*
+/-0.5 dB from 100 to 4,500 Hz
 
Audio Harmonic Distortion (A3E)*

Less than 2.5% at 90% modulation at full power output 50 to 7,500 Hz.
 
Intermodulation Distortion (H3E & R3E)*
At least -35 dB relative to either tone of a two-tone test signal at full PEP output.
 
Carrier Reduction (H3E & R3E)*
-6 to -24 dB relative to two audio tone PEP output, adjustable in 3 dB steps.
 
Noise (A3E)*
-56 dB referenced to 100% modulation with a 1,000 Hz tone, 10 Hz to 10 kHz bandwidth.
 
Audio Input Requirements
Adjustable from -8 to +10 dBm for 100% modulation
 
Audio Input Impedance
600 ohms or 10K ohms, balanced
 
(*) Characteristics of modulator in conjunction with appropriate RF amplifier.
Maximum Peak-to-Peak Output Voltage

32 kV
 
Maximum Average Output Current, Carrier Condition

SSM 100 - 8.5 ADC; SSM 300 - 25.0 ADC; SSM 500/600 - 50.0 ADC; SSM 1000 - 83.5 ADC
 
Maximum Peak Output Current, Modulation Crest

SSM 100 - 17A; SSM 300 - 50A; SSM 500/600 - 100A; SSM 1000 - 167A
 
Power Source

3-phase, 50/60 Hz; SSM 100 - 360 to 480 V; SSM 300/500/600/1000 - 4,160 V or 11,000 V. Other voltages may be accommodated on special order. Total power input requirements dependent on associated RF amplifier.
 
Efficiency
The overal efficiency of the modulator is not less than 97% at full output.
 
 
Environment
Ambient Temperature
+40 to +111 degrees F (+5 to +45 degrees C), +130 degrees F (+55 degrees C) on special order.
 
Relative Humidity Range
0 to 95%, non-condensing
 
Altitude
Up to 6,565 ft. (2,000 m) above sea level. Higher altitudes may be accommodated on special order.
 
Cooling
Air cooled. Air ducting or liquid cooling may be accommodated if desired
 

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