Transmitters and antennas:

3.5 MHz transmitters for sprint (1 minute cycle – 12s:48s)

• RF power 1 W
• antenna: 8m vertical + 8 m single radial counterpoise
• frequency:
  TX 1-5: MOE-MO5 keying speed 50 PARIS 3.53 MHz
  spectators control: S keying speed 50 PARIS 3.55 MHz
  TX 1F-5F: MOE-MO5 keying speed 70 PARIS 3.57 MHz
  finish beacon: MO keying speed 50 PARIS 3.60 MHz

3.5 MHz transmitters (classics)

• RF power 3W
• frequency: TX 1-5: MOE-MO5 3.53 MHz, finish beacon: MO 3.60 MHz
• antenna: 8m vertical + 8 m single radial counterpoise

144 MHz transmitters (classics)

• RF power 1W ERP
• frequency: TX 1-5: MOE-MO5 144.50 MHz, finish beacon: MO 144.85 MHz
• antenna: crossed dipoles 2.5 m above ground level

3.5 MHz transmitters for foxoring (continuous)

• RF power 10 mW, beacon: 1W
• antenna:
  field transmitters 30 cm vertical + no counterpoise,
  finish beacon 8m vertical + 8 m single radial counterpoise
• frequency:
  TX 1, 2, 1F, 2F   MOE, MOI   3.53 MHz
  TX 3, 4, 3F, 4F   MOS, MOH   3.55 MHz
  TX 5, 5F   MO5   3.57 MHz
  finish beacon   MO   3.60 MHz
• TX 1-5, finish beacon: keying speed 50 PARIS, TX 1F-5F: keying speed 70 PARIS

Flags:

• 3.5 MHz band: standard 30×30 cm 3-sided white and orange flag at all controls
• 144 MHz band: 30×30 cm 3-sided white and orange flag with a blue vertical stripe at all controls
• Sprint: 30×30 cm 3-sided white and orange flag at S (spectator) and B (beacon) controls, red/white striped SI stand (no flag) at all other controls.
• Foxoring: 30×30 cm 3-sided white and orange flag at B (beacon) control, no flag and black SI stand at all other controls.

Marking device:

SportIdent at all controls (NOT in the AIR mode), control numbers and bands are written on the SI units.

Note on use of GPS devices:

The use of satellite positioning devices is allowed provided they do not contain digital map of the terrain.