Orbit Types
This orbit type is approximately 22,300 miles above the equator
Geostationary
IF stands for this...
This component up converts a band of frequencies
Block Up Converter
this uses satellites at fixed locations and typically involves VSAT stations
Fixed Satellite Services (FSS)
Most GPS systems use this type of orbit
Medium Earth Orbit
Mixing 2 signals together. changing from on form to another
This component takes a weak signal from the satellite and amplifies it
LNA (low noise amplifier)
This allows for movement and is used for Tactical Satellite communications such as Muos or IW
Mobile satellite services
This beam coverage has a footprint of 1/3 of the earths surface.
Global
What is RF short for
Radio Frequency
This is the frequency band pushed out by our modulator...
L band
what is a carrier wave "spike"
unmodulated, no data, used for Peak and Pol's
This beam covers the smallest geographical area?
spot
This is the IF band commonly used at JCSE
L band
This device increases power, JCSE uses SSPA (solid State power amplifier)
name an advantage of FDMA
allocates dedicated frequencies to different stations, transmit and Receive continuously on their allocate frequencies, efficient when a constant stream of traffic is required
The orbital positions of geostationary satellites are reported using these degrees
Degrees of longitude
Full Duplex allows for...
Devices to Transmit and Receive simultaneously
Down-converting received frequencies to L-band
LNB
name an advantage of Time Division Multiple access (TDMA)
Multiple stations on the same frequency using time slots
Resources used effectively on a per need basis (QOS)