What indicator is required to be used by U.S.-licensed operators when operating a station via remote control and the remote transmitter is located in the U.S.?

  1. / followed by the USPS two-letter abbreviation for the state in which the remote station is located
  2. /R# where # is the district of the remote station
  3. / followed by the ARRL Section of the remote station
  4. No additional indicator is required