T3B10:

What frequency range is referred to as HF?

  1. 300 to 3000 MHz
  2. 30 to 300 MHz
  3. 3 to 30 MHz
  4. 300 to 3000 kHz
T3B01 T3B02 T3B03 T3B04 T3B05 T3B06 T3B07 T3B08 T3B09 T3B10 T3B11