The 18 GHz band is designated by ACMA RALI FX3 for use by small, medium and high capacity fixed links. A strict channel plan is specified. Detailed frequency coordination including is required in this band. Protection ratios are imposed.

Detailed information from ACMA is available here.

Country
Australia
Wireless Band
18 GHz
Min. Frequency
17700 MHz
Max. Frequency
19700 MHz

Transmitter Rules

Rule Name Conditions Device Types
Fixed licence: point to point
  • 7.5, 13.75, 27.5, or 55 MHz channel widths
  • Minimum path length 1 kilometre for high rainfall areas (> 80 mm/h) or links with > 27 MHz channel width
  • Maximum transmit power (conducted) +27 dBm
  • Minimum antenna size 0.3 metre diameter
  • Notional HPBW 3.6 degrees
  • Notional on-axis gain 33.5 dBi
Microwave PTP