What three bands or frequency levels does SATCOM operate on?

SATCOM, or satellite communications, primarily operates on three main frequency bands: UHF (Ultra High Frequency), SHF (Super High Frequency), and EHF (Extremely High Frequency).

These frequency ranges are critical for satellite communication because they provide the bandwidth and transmission characteristics necessary for reliable and effective communication over long distances.

UHF is commonly used for military and some commercial satellite communications, offering a balance between frequency and range. SHF is typically used for most common satellite communications including both commercial and military, as it allows for high-data-rate transmissions and is less susceptible to atmospheric interference. EHF is used for very high-data-rate transmissions, offering enhanced security and resistance to jamming, which makes it suitable for specialized applications like military communications.

The other options include frequency bands that are less relevant or not typically utilized for satellite communications in the same effective manner that UHF, SHF, and EHF are. For example, VHF (Very High Frequency) and LF (Low Frequency) are generally more appropriate for terrestrial communications rather than satellite-based systems. Thus, selecting UHF, SHF, and EHF accurately reflects the frequency bands most associated with satellite communications.