Tx Modulator Specifications - Paradise Datacom Vision Series Installation And Operating Handbook

Vision Series Installation and Operating Handbook

13.2 Tx Modulator Specifications

Parameter
IF Output Pow er Level
L-band Output Pow er
Level
Output Level Stability
Transmit Filtering
Occupied Bandw idth
Recommended Channel
Spacing
Phase Accuracy
Amplitude Accuracy
Carrier Suppression
Output Phase Noise
IF Output Frequency
Stability
L-band Output
Frequency Stability
IF Har monics
L-band Har monics
IF Spur ious
L-band Spurious
Transmit On/Off Ratio
External Trans mit Inhibit
Vision Series Modem
0 to –25dBm Continuously Variable in 0.1dB steps
(please note that this is in the process of being
extended to 0 to -25dBm via a softw are upgrade –
contact Customer Technical Support for more
details)
-5 to –30dBm Continuously Variable in 0.1dB steps
±0.5dB, 0ºC to 40ºC
DVB-S2 and Intelsat IESS compliant
1.2 times Sy mbol Rate @
α
Symbol Rate @ = 0.25; 1.1 times Symbol Rate
α
@ = 0.20
1.4 times Sy mbol Rate @
α
Symbol Rate @ = 0.25; 1.2 times Symbol Rate
α
@ = 0.20
±2º maximum
±0.2dB maximum
-30dBc minimum
As IESS-308, nominally 3dB better.
<1ppm/yr
<4E-8/yr
Better than –55dBc/ 4kHz in band
Better than –55dBc/ 4kHz in band, no w orse than
–45dBc out of band to 5GHz
Better than –55dBc/ 4kHz in band
Better than –55dBc/ 4kHz in band, no w orse than
–40dBc out of band 10MHz to 5GHz
55dB minimum
By external contact closure or by TTL signal
applied to rear panel Alar ms & AGC connector
13-2
α
= 0.35; 1.13 times
α
= 0.35; 1.27 times