Valo Analytica

SpectrumWiki

Radio spectrum allocations

Look up a frequency or a range.

Examples: 88.5 MHz, 1350–1430 MHz, 2.4 GHz

224.999999 MHz (224,999,999 Hz)

U.S. Federal Government Allocations

222 – 225 MHz

ITU Region 2 Allocations

220 – 225 MHz

AMATEUR

FIXED

MOBILE

Radiolocation 5.241

ITU Region 3 Allocations

223 – 230 MHz

FIXED

MOBILE

BROADCASTING

AERONAUTICAL RADIONAVIGATION

Radiolocation

5.250

Footnotes

  • 5.241   In Region 2, no new stations in the radiolocation service may be authorized in the band 216-225 MHz. Stations authorized prior to 1 January 1990 may continue to operate on a secondary basis.

  • 5.243   Additional allocation: in Somalia, the band 216-225 MHz is also allocated to the aeronautical radionavigation service on a primary basis, subject to not causing harmful interference to existing or planned broadcasting services in other countries.

  • 5.246   Alternative allocation: in Spain, France, Israel and Monaco, the band 223-230 MHz is allocated to the broadcasting and land mobile services on a primary basis (see No. 5.33) on the basis that, in the preparation of frequency plans, the broadcasting service shall have prior choice of frequencies; and allocated to the fixed and mobile, except land mobile, services on a secondary basis. However, the stations of the land mobile service shall not cause harmful interference to, or claim protection from, existing or planned broadcasting stations in Morocco and Algeria.

  • 5.247   Additional allocation: in Saudi Arabia, Bahrain, the United Arab Emirates, Jordan, Oman, Qatar and Syrian Arab Republic, the band 223-235 MHz is also allocated to the aeronautical radionavigation service on a primary basis.

  • 5.250   Additional allocation: in China, the band 225-235 MHz is also allocated to the radio astronomy service on a secondary basis.

Wiki entries

Amateur Radio (1.25 m Band)

Current Use 222–225 MHz Amateur radio 1.25 m band
According to the ITU, "where allocated, this band serves as an alternative to the 144 MHz band for short-range communications."

In the U.S., the ARRL has adopted the following band plan. This plan may apply in other countries as well:

Frequency (MHz): Use
222.0-222.15: Weak-signal modes
222-222.025: Earth-Moon-Earth communications
222.05-222.06: Propagation beacons
222.1: SSB & CW calling frequency
222.1-222.15: Weak-signal CW & SSB
222.15-222.25: Local coordinator's option; weak signal, ACSB, repeater inputs, control
222.25-223.38: FM repeater inputs only
223.4-223.52: FM simplex
223.52-223.64: Digital, packet
223.64-223.7: Links, control
223.71-223.85: Local coordinator's option, FM simplex, packet, repeater outputs
223.85-224.98: Repeater outputs only