What is meant by the “mode” of an amateur radio satellite?

In the context of amateur radio satellites, the term 'mode' specifically refers to the combination of uplink and downlink frequency bands used by the satellite's transponder. For example, Mode V/U means the uplink is on the VHF band (2 meters) and the downlink is on the UHF band (70 cm). This is a departure from standard terrestrial amateur radio, where 'mode' usually means the type of modulation (like FM, SSB, or CW). The distractors focus on orbital characteristics (like LEO vs. GEO or polar vs. equatorial) or physical orientation. These physical and spatial details are described by orbital parameters (like Keplerian elements), not the satellite's communication mode.