Federal Spectrum Use Summary (Sept. 2000)

Federal Use of the Radio Frequency Spectrum
100 to 1000 GHz

UNITED STATES
Band

GHz

Government

Allocation(s)

Government Allocation(s) by Footnote Government Usage Planned Usage
100- 102 EARTH EXPLORATION-SATELLITE (passive)

SPACE RESEARCH (passive)

US246 S5.341

None Passive Sensing. Remote sensing used to measure water vapor and other environmental conditions is done in this band. Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to add the RADIO ASTRONOMY allocation.
102- 105 FIXED

FIXED-SATELLITE (space-to-Earth)

MOBILE

S5.341 US211

None Radio Astronomy. Spectral-line observations are made in this band by radio astronomers. Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 changes: 1) to add RADIO ASTRONOMY allocation; 2) to add footnote S5.149; and 3) to delete other allocation(s).
105- 116 EARTH EXPLORATION-SATELLITE (passive)

RADIO ASTRONOMY

SPACE RESEARCH (passive)

US74 US246

None Radio Astronomy. This is one of the most important bands in the RF spectrum because it contains many spectral lines that are essential in the study of cool cosmic clouds, regions of star formation, and the structure of galaxies including our own.

Passive Sensing. In the EES service, observations are made of atmospheric temperature at various altitudes (such as the tridimensional sounding of atmospheric temperatures from GSO meteorological satellites.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to subdivide the 105-116 GHz band into 105-109.5, 109.5-111.8, 111.8-114.25, and 114.25-116 GHz segments with accompanying changes; 2) to attach footnote S5.CCA to SPACE RESEARCH (passive) allocation in the 105-109.5 and 111.8-114.25 GHz segments.

Users: Future geostationary temperature sounding sensors, and AMSR2, MILES, MLS (future), SMILES.

116- 119.98 EARTH EXPLORATION-SATELLITE (passive)

FIXED

INTER-SATELLITE

MOBILE S5.558

SPACE RESEARCH (passive)

S5.341 US211 US263

None Passive Sensing. In the EES service, observations are made of atmospheric temperature at various altitudes (such as the tridimensional sounding of atmospheric temperatures from GSO meteorological satellites. Use expected to continue.
119.98- 120.02 EARTH EXPLORATION-SATELLITE (passive)

FIXED

INTER-SATELLITE

MOBILE

SPACE RESEARCH

(passive)

US211 US263 S5.341 S5.558 S5.562

None Passive Sensing. In the EES service, observations are made of atmospheric temperature at various altitudes (such as the tridimensional sounding of atmospheric temperatures from GSO meteorological satellites. Use expected to continue.
120.02- 122 EARTH EXPLORATION-SATELLITE (passive)

FIXED

INTER-SATELLITE

MOBILE S5.558

SPACE RESEARCH (passive)

S5.138 S5.341 US211 US263

ISM S5.138 Passive Sensing. In the EES service, observations are made of atmospheric temperature at various altitudes (such as the tridimensional sounding of atmospheric temperatures from GSO meteorological satellites. Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 120.02-123 GHz band into 120.02-122.25 and 122.25-123 GHz segments and its accompanying changes.
122- 123 EARTH EXPLORATION-SATELLITE (passive)

FIXED

INTER-SATELLITE

MOBILE S5.558

SPACE RESEARCH (passive)

S5.138 S5.341 US211 US263

ISM S5.138 Passive Sensing. In the EES service, observations are made of atmospheric temperature at various altitudes (such as the tridimensional sounding of atmospheric temperatures from GSO meteorological satellites.

ISM. The band 122-123 GHz (center frequency 122.5 GHz) is designated for industrial, scientific and medical (ISM) applications.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 120.02-123 GHz band into 120.02-122.25 and 122.25-123 GHz segments and its accompanying changes (deletion of EES and SR for the 122.25-123 GHz, etc.).
123- 126 EARTH EXPLORATION-SATELLITE (passive)

FIXED

INTER-SATELLITE

MOBILE S5.558

SPACE RESEARCH (passive)

S5.138 S5.341 US211 US263

ISM S5.138 None Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to delete and add allocations (delete EES and SR; add FSS; etc.)
126- 134 FIXED

INTER-SATELLITE

MOBILE

RADIOLOCATION

S5.558 S5.559

None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 126-134 GHz band into 126-130 and 130-134 GHz segments and its accompanying changes (addition of Radio Astronomy and S5.QQQ to 126-130 GHz; addition of EES (active) and RADIO ASTRONOMY to 130-134 GHz; and etc.)

134- 140.69 MOBILE S5.553

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

Radiolocation

S5.149 S5.340 S5.553 S5.554

None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of Radio Astronomy in 134-136 GHz; addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

140.69- 140.98 MOBILE S5.553

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

Radiolocation

S5.149 S5.340 S5.554 S5.555

RADIO ASTRONOMY S5.555 Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

140.98- 142 MOBILE S5.553

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

Radiolocation

S5.149 S5.340 S5.554

None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

142- 144 None None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

144- 144.68 RADIOLOCATION None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

144.68- 144.98 RADIOLOCATION

S5.149 S5.555

RADIO ASTRONOMY S5.555 Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

144.98- 145.45 RADIOLOCATION None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

145.45- 145.75 RADIOLOCATION

S5.149 S5.555

RADIO ASTRONOMY S5.555 Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

145.75- 146.82 RADIOLOCATION

None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

146.82- 147.12 RADIOLOCATION

S5.149 S5.555

RADIO ASTRONOMY S5.555 Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; etc.).

147.12- 149 RADIOLOCATION

None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; addition of EES (passive) and SR (passive) to 148.5-151.5 GHz; etc.).

149- 150 FIXED

FIXED-SATELLITE (space-to-Earth)

MOBILE

None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; addition of EES (passive) and SR (passive) to 148.5-151.5 GHz; etc.).

150- 151 EARTH EXPLORATION-SATELLITE (passive)

FIXED

FIXED-SATELLITE (space-to-Earth)

MOBILE

SPACE RESEARCH (passive)

S5.149 S5.385 US263

RADIO ASTRONOMY S5.385 Passive Sensing. In the EES service, remote sensing to map geologic formations and soil boundaries help determine soil moisture.

Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band.

Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; addition of EES (passive) and SR (passive) to 148.5-151.5 GHz; etc.).

151- 156 FIXED

FIXED-SATELLITE (space-to-Earth)

MOBILE

US211

None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; addition of EES (passive) and SR (passive) to both the 148.5-151.5 GHz and 155.5-158.5 GHz bands with accompanying footnotes; etc.).

156- 158 EARTH EXPLORATION-SATELLITE (passive)

FIXED

FIXED-SATELLITE (space-to-Earth)

MOBILE

US211

None Passive Sensing. In the EES service, remote sensing studies of the Earth's surface and studies of cloud parameters is done in this band.

Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band.

Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; addition of EES (passive) and SR (passive) to the 155.5-158.5 GHz band with accompanying footnotes; etc.).

158- 164 FIXED

FIXED-SATELLITE (space-to-Earth)

MOBILE

US211

None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 134-164 GHz band into 134-136, 136-141, 141-148.5, 148.5-151.5, 151.5-155.5, 155.5-158.5, 158.5-164 GHz segments and its accompanying changes (addition of RADIO ASTRONOMY in 136-158.5 GHz; addition of EES (passive) and SR (passive) to the 155.5-158.5 GHz band with accompanying footnotes; etc.).

164- 168 EARTH EXPLORATION-SATELLITE (passive)

RADIO ASTRONOMY

SPACE RESEARCH (passive)

US246

None Passive Sensing. In the EES service, observation studies are made of vegetation, distinguishing clouds, snow, and ice.

Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band.

Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes to subdivide the 164-168 GHz band into 164-167 and 167-168 GHz segments and its accompanying changes (deletion of RA, EES, and SR from the 167-168 GHz segment and adding new radio services in their place; etc.).

168- 170 FIXED

MOBILE

None Radio Astronomy. Radio astronomy makes spectral-line (various formaldehyde lines) and continuum observations in the 130-170 GHz band. Use expected to continue.

170- 174.42 FIXED

INTER-SATELLITE

MOBILE S5.558

None None Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to join the band segments from 170 GHz to 174.5 GHz.
174.42- 174.5 FIXED

INTER-SATELLITE

MOBILE S5.558

S5.149 S5.385

Radio Astronomy S5.385 None Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to join the band segments from 170 GHz to 174.5 GHz.
174.5- 175.02 EARTH EXPLORATION-SATELLITE (passive)

FIXED

INTER-SATELLITE

MOBILE S5.558

SPACE RESEARCH (passive)

S5.149 S5.385 US263

Radio Astronomy S5.385 Passive Sensing. In the EES service, observation studies are made of vegetation, distinguishing clouds, snow, and ice. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentations to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete the EES and SR allocations from 174.5-174.8 GHz and add them both to the 174.8-182 GHz segments; etc.).

175.02- 176.5 EARTH EXPLORATION-SATELLITE (passive)

FIXED

INTER-SATELLITE

MOBILE S5.558

SPACE RESEARCH (passive)

US263

None Passive Sensing. In the EES service, observation studies are made of vegetation, distinguishing clouds, snow, and ice. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentation to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete some services and add the EES and SR to the 174.8-182 GHz segments; etc.).

176.5- 177 FIXED

INTER-SATELLITE

MOBILE S5.558

US211

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentation to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete some services and add the EES and SR to the 174.8-182 GHz segments; etc.).

177- 177.4 FIXED

INTER-SATELLITE

MOBILE S5.558

US211

Radio Astronomy S5.385 None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentation to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete some services and add the EES and SR to the 174.8-182 GHz segments; etc.).

177.4- 178.2 FIXED

INTER-SATELLITE

MOBILE S5.558

US211

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentation to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete some services and add the EES and SR to the 174.8-182 GHz segments; etc.).

178.2- 178.6 FIXED

INTER-SATELLITE

MOBILE S5.558

S5.149 S5.385 US211

Radio Astronomy S5.385 None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentation to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete some services and add the EES and SR to the 174.8-182 GHz segments; etc.).

178.6- 181 FIXED

INTER-SATELLITE

MOBILE S5.558

US211

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentation to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete some services and add the EES and SR to the 174.8-182 GHz segments; etc.).

178.6- 181 FIXED

INTER-SATELLITE

MOBILE S5.558

US211

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentation to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete some services and add the EES and SR to the 174.8-182 GHz segments; etc.).

181- 181.46 FIXED

INTER-SATELLITE

MOBILE S5.558

S5.149 S5.385 US211

Radio Astronomy S5.385 None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentation to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete some services and add the EES and SR to the 174.8-182 GHz segments; etc.).

181.46- 182 FIXED

INTER-SATELLITE

MOBILE S5.558

US211

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the 174.5-182 GHz segmentation to 174.5-174.8 and 174.8-182 GHz and its accompanying changes (delete some services and add the EES and SR to the 174.8-182 GHz segments; etc.).

182- 185 EARTH EXPLORATION-SATELLITE (passive)

RADIO ASTRONOMY

SPACE RESEARCH

(passive)

US246

None Passive Sensing. In the EES service, observation studies are made of vegetation, distinguishing clouds, snow, and ice. No changes are planned. Use expected to continue.
185- 186.2 FIXED

INTER-SATELLITE

MOBILE

US211 S5.558

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine all segments from 185 GHz to 190 GHz into one new segment: 185-190 GHz; and 2) to make its accompanying changes (addition of the EES (passive) and SR (passive) to the 185-190 GHz band; etc.).

186.2- 186.6 FIXED

INTER-SATELLITE

MOBILE

US211 S5.558

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine all segments from 185 GHz to 190 GHz into one new segment: 185-190 GHz; and 2) to make its accompanying changes (addition of the EES (passive) and SR (passive) to the 185-190 GHz band; etc.).

186.6- 190 FIXED

INTER-SATELLITE

MOBILE

US211 S5.558

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine all segments from 185 GHz to 190 GHz into one new segment: 185-190 GHz; and 2) to make its accompanying changes (addition of the EES (passive) and SR (passive) to the 185-190 GHz band; etc.).

190- 197 MOBILE

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

S5.554 S5.553

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to change the segmentation from 190 GHz to 200 GHz to 190-191.8 and 191.8-200 GHz; and 2) to make its accompanying changes (addition of the EES (passive) and SR (passive) to the 190-191.8 GHz band; deletion of other services; etc.).

197- 200 MOBILE

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

S5.554 S5.553

None None Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to change the segmentation from 190 GHz to 200 GHz to 190-191.8 and 191.8-200 GHz; and 2) to add some new services in the 191.8-200 GHz band; etc.)

200- 202 EARTH EXPLORATION-SATELLITE (passive)

FIXED

MOBILE

SPACE RESEARCH (passive)

US263 S5.341

None Passive Sensing. In the EES service, water vapor observations are made at low latitudes.

Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band.

Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to add RADIO ASTRONOMY and accompanying footnote.

202- 217 FIXED

FIXED-SATELLITE (Earth-to-space)

MOBILE

S5.341

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to change the segmentation to 202-209 and 209-217 GHz bands; 2) add EES (passive), RA, and SR (passive) to the 202-209 GHz segment and add RADIO ASTRONOMY to the 209-217 GHz segment; 3) and other accompanying changes.

217- 231 EARTH EXPLORATION-SATELLITE (passive)

RADIO ASTRONOMY

SPACE RESEARCH

(passive)

S5.341 US74 US246

None Passive Sensing. In the EES service, atmospheric measurements and water vapor analysis are performed in this band.

Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band.

Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to change the segmentations from 217-235 GHz to 217-226, 226-231.5, 231.5-232, and 232-235 GHz bands; 2) add RA and SR (passive) to the 217-226 GHz segment; 3) add EES (passive), RA, and SR (passive) to the 226-231.5 GHz band; and 4) and other accompanying changes.

231- 235 FIXED

FIXED-SATELLITE (space-to-Earth)

MOBILE

Radiolocation

US211

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to change the segmentations from 217-235 GHz to 217-226, 226-231.5, 231.5-232, and 232-235 GHz bands; 2) add EES (passive), RA, and SR (passive) to the 226-231.5 GHz band; and 3) and other accompanying changes.

235- 238 EARTH EXPLORATION-SATELLITE(passive)

FIXED

FIXED-SATELLITE (space-to-Earth)

MOBILE

SPACE RESEARCH

(passive)

US263

None Passive Sensing. In the EES service, ozone measurements and studies are made.

Cloud Radars. The band 237.9-238 GHz will be used for spaceborne cloud radars.

Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band.

Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to add footnote S5.NNN where the band 237.9-238 GHz is also allocated to the EES (active) and SR (active) for spaceborne radars only.

238- 241 FIXED

FIXED-SATELLITE (space-to-Earth)

MOBILE

Radiolocation

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to change the band segmentation to 238-240 and 240-241 GHz

241- 244 RADIOLOCATION

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 241 GHz to 248 GHz into one segment; and 2) to add RA; and 3) other changes.

244- 246 RADIOLOCATION

ISM Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band.

ISM. The band 244-246 GHz (center frequency 245 GHz) is designated for industrial, scientific and medical (ISM) applications.

Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 241 GHz to 248 GHz into one segment; and 2) to add RA; and 3) other changes.

246- 248 RADIOLOCATION

S5.138

ISM S5.138 Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 241 GHz to 248 GHz into one segment; and 2) to add RA; and 3) other changes.

248- 250 None None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation change to add Radio Astronomy to this band.

250- 251 EARTH EXPLORATION-SATELLITE (passive)

SPACE RESEARCH

(passive)

S5.149 S5.555

RADIO ASTRONOMY S5.555 Passive Sensing. In the EES service, nitrous oxide line studies are performed.

Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band.

Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 250 GHz to 252 GHz into one segment; 2) add RADIO ASTRONOMY and its accompanying footnote.

251- 252 EARTH EXPLORATION-SATELLITE (passive)

SPACE RESEARCH

(passive)

None Passive Sensing. In the EES service, nitrous oxide line studies are performed.

Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band.

Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 250 GHz to 252 GHz into one segment; 2) add RADIO ASTRONOMY and its accompanying footnote.

252- 257.5 MOBILE S5.553

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

S5.554 US211

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 252 GHz to 265 GHz into one segment; 2) add RADIO ASTRONOMY and its accompanying footnote.

257.5- 258 MOBILE S5.553

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

S5.149 S5.385 S5.554 US211

Radio Astronomy S5.385 Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 252 GHz to 265 GHz into one segment; 2) add RADIO ASTRONOMY and its accompanying footnote.

258- 262.24 MOBILE S5.553

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

S5.149 S5.554 US211

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 252 GHz to 265 GHz into one segment; 2) add RADIO ASTRONOMY and its accompanying footnote.

262.24- 262.76 MOBILE S5.553

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

S5.149 S5.554 S5.555 US211

RADIO ASTRONOMY S5.555 Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 252 GHz to 265 GHz into one segment; 2) add RADIO ASTRONOMY and its accompanying footnote.

262.76- 265 MOBILE S5.553

MOBILE-SATELLITE

RADIONAVIGATION

RADIONAVIGATION-

SATELLITE

S5.554 US211

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 252 GHz to 265 GHz into one segment; 2) to add RADIO ASTRONOMY and its accompanying footnote.

265- 265.64 FIXED

FIXED-SATELLITE (Earth-to-space)

MOBILE

RADIO ASTRONOMY

S5.149

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 265 GHz to 275 GHz into one segment; 2) to add RADIO ASTRONOMY and its accompanying footnote.

265.64- 266.16 FIXED

FIXED-SATELLITE (Earth-to-space)

MOBILE

RADIO ASTRONOMY

S5.149

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 265 GHz to 275 GHz into one segment; 2) to add RADIO ASTRONOMY and its accompanying footnote.

266.16- 267.34 FIXED

FIXED-SATELLITE (Earth-to-space)

MOBILE

RADIO ASTRONOMY

S5.149

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 265 GHz to 275 GHz into one segment; 2) to add RADIO ASTRONOMY and its accompanying footnote.

267.34- 267.86 FIXED

FIXED-SATELLITE (Earth-to-space)

MOBILE

RADIO ASTRONOMY

S5.149

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 265 GHz to 275 GHz into one segment; 2) to add RADIO ASTRONOMY and its accompanying footnote.

267.86- 271.74 FIXED

FIXED-SATELLITE (Earth-to-space)

MOBILE

RADIO ASTRONOMY

S5.149

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 265 GHz to 275 GHz into one segment; 2) to add RADIO ASTRONOMY and its accompanying footnote.

271.74- 272.26 FIXED

FIXED-SATELLITE (Earth-to-space)

MOBILE

RADIO ASTRONOMY

S5.149

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 265 GHz to 275 GHz into one segment; 2) to add RADIO ASTRONOMY and its accompanying footnote.

272.26- 275 FIXED

FIXED-SATELLITE (Earth-to-space)

MOBILE

RADIO ASTRONOMY

S5.149

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Use expected to continue.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 allocation changes: 1) to combine segments from 265 GHz to 275 GHz into one segment; 2) to add RADIO ASTRONOMY and its accompanying footnote.

275- 277 FIXED

MOBILE

S5.565

Space Research S5.565

Earth Exploration-Satellite S5.565

Passive Sensing. In the EES service, vegetation discrimination, penetration of haze, waterland boundaries are mapped.

Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band.

Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

277- 278 FIXED

MOBILE

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz.

278- 280 FIXED

MOBILE

S5.565

Radio Astronomy S5.565 Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz.

280- 300 FIXED

MOBILE

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band.

Passive Sensing. Used by Earth Exploration-Satellite service for vegetation discrimination, penetration of haze, and water/land boundary mapping.

Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

300- 302 (Not allocated)

S5.565

Space Research S5.565

Earth Exploration-Satellite S5.565

Passive Sensing. In the EES service, vegetation health and biomass 92are analyzed.

Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band.

Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

302- 324 (Not allocated)

None Radio Astronomy. Radio astronomy makes spectral-line (various carbon lines and its isotopes as well as hydrogen lines and its associated compound lines) and continuum observations in the 200-305 GHz band. Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

324- 326 (Not allocated)

S5.565

Space Research S5.565

Earth Exploration-Satellite S5.565

None Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

326- 343 (Not allocated)

None Radio Astronomy. Radio astronomy makes spectral-line and continuum observations in the 330-360 GHz band. Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

343- 345 (Not allocated)

S5.565

Radio Astronomy S5.565 Radio Astronomy. Radio astronomy makes spectral-line and continuum observations in the 330-360 GHz band. Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

345- 347 (Not allocated)

S5.565

Radio Astronomy S5.565

Space Research S5.565

Earth Exploration-Satellite S5.565

Radio Astronomy. Radio astronomy makes spectral-line and continuum observations in the 330-360 GHz band. Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

347- 348 (Not allocated)

S5.565

Radio Astronomy S5.565 Radio Astronomy. Radio astronomy makes spectral-line and continuum observations in the 330-360 GHz band. Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

348- 363 (Not allocated)

None Radio Astronomy. Radio astronomy makes spectral-line and continuum observations in the 330-360 GHz band. Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

363- 365 (Not allocated)

S5.565

Space Research S5.565

Earth Exploration-Satellite S5.565

None Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

365- 379 (Not allocated)

None None Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

379- 381 (Not allocated)

S5.565

Space Research S5.565

Earth Exploration-Satellite S5.565

None Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

381- 400 (Not allocated) None None Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.

400-1000 (Not allocated) None. None. Scientific research is expected to continue and increase in this band.

Awaiting IRAC approval of AH 206 recommended implementation of WRC-2000 footnote modification (MOD S5.565) identifying the following spectrum for:

1) Radio Astronomy (passive) measurements: 275-323 GHz, 327-371 GHz, 388-424 GHz, 426-442 GHz, 453-510 GHz, 623-711 GHz, 795-909 GHz and 926-945 GHz; and

2) Earth Exploration-Satellite (passive) and Space Research (passive) usage: 275-277 GHz, 294-306 GHz, 316-334 GHz, 342-349 GHz, 363-365 GHz, 371-389 GHz, 416-434 GHz, 442-444 GHz, 496-506 GHz, 546-568 GHz, 624-629 GHz, 634-654 GHz, 659-661 GHz, 684-692 GHz, 730-732 GHz, 851-853 GHz and 951-956 GHz.


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