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Terms in this set (32)
What is will the maintenance cycle do?
ensure mission capability
What is the foundation and structural support to the SATCOM system?
What is the management and control laptop (M&C)?
A ruggedized laptop with special control programs for the terminal
A parabolic dish is required for what?
What is the first and last component in signal flow?
What transmit and receive lines fed into "feed horn" through a "diplexer"?
What does the Low Noise Block (LNB) consist of?
Band-pass filter and a LNA combined with a down converter
What is the purpose of the LNB?
filter out noise, and isolate the desired receive frequency from anomalies that could interfere with demodulation
What is a band-pass filter?
filters noise from incoming signal
What does a Low Noise Amplifier do?
amplifies the weak incoming signal without significantly degrading the signal-to-noise ration
What is the down-converter?
adjust the frequency of analog signals during receipt of a signal, this transforms radio frequency to intermittent frequency and it mixes signals
What are the SatCom bands?
used in LNB 1
frequency range 10.90-11.7 GHz
Local Oscillator L.O. 10.0 GHz
used in LNB 2
frequency range 11.7-12.20 GHz
Local Oscillator L.O. 10.75 GHz
used in LNB 3
frequency range 12.25- 12.75 GHz
Local Oscillator L.O. 11.30 GHz
used in BUC Output
frequency range 13.75 -
Local oscillator L.O. 12.80 GHz
used in LNB
frequency range 7.25 -7.75 GHz
Local Oscilator L.O. 6.30 GHz
used in BUC output
frequency range 7.90- 8.40 GHz
Local Oscilator L.O. 6.95 GHz
The High Power Amplifier does what?
boost signal strength for transmitting
What is an Up-Converter need for?
to convert the intermediate frequency produced by the modem into a much higher frequency required to reach the transponder
mixes signals for transmit
The Block Up Converter (BUC) consist of what?
The HPA and an Up-converter
What is the process of combining two signals in order to create a desired signal?
What is frequency mixing used for?
to convert both the incoming and outgoing signals, since the modem can be damaged by high frequencies, but higher frequencies are required to propagate signals through the ionosphere.
What piece of hardware handles up conversion and down conversion via frequency mixing for some SATCOM systems?
What is required to modulate that electric signal onto a "carrier wave", or something that can be propagated into space or "demodulate" the incoming radio waves, and detect and separate the signal from the carrier wave.
Modulator/ Demodulator Modem
What is the config file that has all of the frequencies locations, network keys and any other network configs needed for the modem?
Who supplies the option files?
True or False; operators are authorized to edit option files
What is required to encrypt classified communications and is essential to securing data leaving the network?
inline network encryption (INE)
What is the current standard for the INE?
What is downlink?
where the signal is traveling down from the satellite transponder to the ground terminal
What is the transmit signal path called?
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