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Quantum and Evolution Series Installation and Operating Handbook
13.2 Tx Modulator Specifications
Parameter
IF Output Power Level
L-band Output Power
Level
Output Level Stability
Transmit Filtering
Occupied Bandwidth
Recommended Channel
Spacing
Phase Accuracy
Amplitude Accuracy
Carrier Suppression
Output Phase Noise
IF Output Frequency
Stability
L-band Output
Frequency Stability
IF Harmonics
L-band Harmonics
IF Spurious
L-band Spurious
Transmit On/Off Ratio
External Transmit Inhibit
Modem
0 to –25dBm continuously variable in 0.1dB steps
-5 to –30dBm continuously variable in 0.1dB steps
±0.5dB, 0ºC to 50ºC
Intelsat IESS compliant.
1.2 times Symbol Rate
1.4 times Symbol Rate
±2º maximum
±0.2dB maximum
-30dBc minimum
As IESS-308, nominally 3dB better.
<1ppm/yr
7.5E-8/yr with high stability reference option
Better than –55dBc/ 4kHz in band
Better than –55dBc/ 4kHz in band, no worse than
–45dBc out of band to 5GHz
Better than –55dBc/ 4kHz in band
Better than –55dBc/ 4kHz in band, no worse than
–40dBc out of band 10MHz to 5GHz
55dB minimum
By external contact closure or by TTL signal
applied to rear panel Alarms & AGC connector
13-3
α
= 0.35
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