text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_2638104_1 (signal_power VARCHAR, callsign VARCHAR)
  ### Question:
  What is the signal power for JOAB-DTV?
  ### Answer:
  SELECT signal_power FROM table_2638104_1 WHERE callsign = "JOAB-DTV"