• Inductive Mode - through the soil
  
  
• Inductive Clamp Mode - clamp around the target line
  
  
• Direct Connection or Conductive Mode - clip onto the target line
  
  
• Magnetic Mode - ferrous metal detection
  
  
• Live Cable Mode - energized power line (Magnetic Mode in the MAC)

• Radio Frequency (RF) usually above 10 kHz, and the 80 kHz and above are usually called High Frequency (HF)
  
  
• l Audio Frequency (AF) usually 10 kHz & below:

10 - 8 kHz usually called he Mid-range frequencies

571 - 512 Hz called the Low Frequencies (LF)

• RF frequencies are limited to power by FCC - limits signals to fairly short distance.
  
  
• AF frequencies can use high power - driver signals farther.

• Needs to be lightweight.
  
  
• l Needs to be balanced.

• RF & AF range 12 to 15 feet
  
  
• Magnetic range depending on mass & orientation of target, up to 20 feet
  
  
• Depth reporting within " + or -" 5 to 10%

• Gain Control - Automatic - or -Manual
  
  
• Push Button Depth Reporting- or - Triangulation
  
  
• LCD or Analogue Meter- or - Audio only
  
  
• Controls - Key Pad or Knobs- or - Combination thereof