Amateur Radio

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Across
  1. 3. I am ready (to transmit, call CQ, do something with my radio)
  2. 4. sending sloppy Morse code
  3. 7. grid square
  4. 10. radio detection and ranging
  5. 11. fifth letter of the alphabet
  6. 12. back to you
  7. 13. conductor
Down
  1. 1. do you copy?
  2. 2. semiconductor
  3. 5. frequency modulation
  4. 6. vacuum tube
  5. 8. insulator
  6. 9. what ham's play with
  7. 13. calling any station