Adjacent Satellite Interference – Definition and Pronunciation
What is Adjacent Satellite Interference?
For a ground station, extraneous power from a signal in an adjacent satellite (2° or 4° away) operating at the same frequency band. It may be due to the fact that the antenna is too small and is not able to focus properly on the specific satellite of interest, or due to the fact that the antenna is mispointed.
Adjacent Satellite Interference Examples
In addition to free space losses (attenuation), there are a multitude of other factors that have to be taken into account. These include, but are not limited to, attenuation, distortion, dispersion, intermodulation, fade, multipath, dropouts, and external and adjacent satellite interference, and cross-pol(arization) interference.
From “High Throughput Satellites (HTS) and KA/KU Spot Beam Technologies”.
These systems are planned to have the ability to automatically detect and respond to impairments of the transmission channel, such as, but not limited to Adjacent Satellite Interference (ASI), Adjacent Channel Interference (ACI), rain fade, and terminal RF performance variations due to a number of causes.
From “Exploring the Future of Satellites”.
Advantages of Ka-band for SNG services include: the lower chance of adjacent satellite interference and the smaller risk of uplink mispointing to other spacecraft considering the plethora of existing Ku/C spacecraft now on station.
From “Maritime and Other Mobility Services”.
Pronunciation of Adjacent Satellite Interference
