E2C01:What indicator is required to be used by US-licensed operators when operating a station via remote control and the remote transmitter is located in the US?
Direct answer summary (2024-2028 NCVEC pool)
The official correct answer for E2C01 is No additional indicator is required.
The key fact is No additional indicator is required. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.