Telegraph and Morse code

Edit Answers
1234567891011121314
Across
  1. 3. Instrument used to transmit Morse code
  2. 4. Act of exchanging information
  3. 6. Message sent by telegraph
  4. 7. Unit of electrical current
  5. 8. Device used to send Morse code signals
  6. 10. Long sound in Morse code
  7. 12. Morse code transmitter
  8. 14. Inventor of the Morse code
Down
  1. 1. System used to send messages over long distances
  2. 2. Conductor used to transmit electrical signals
  3. 4. Path for electricity to flow through
  4. 5. Language used by telegraph operators
  5. 9. Transmission used to convey information
  6. 11. Device used to receive Morse code signals
  7. 13. Short sound in Morse code