Login/Register
Logged in as:
Frequency:
MHz 
Home
Utilities
Wiki
Reference
About
Search...
Advanced Search...
Allocations by Service...
Allocations by Footnote...
Introduction to Allocations(pdf)...
FCC Rules...
Useful Links...
About SpectrumWiki...
Feedback...
Help...
Start a New Entry...
Upload document/file/link...
List of Entries by User...
List of Entries by Frequency...
Your Account Information...
Jump to:
Allocations
/
Footnotes
/
SpectrumWiki
/
Engineering data
Allocations
U.S. Non-Federal-Government Allocations
8400
-
8450
MHz
Space research (deep space)(space-to-Earth)
U.S. Federal Government Allocations
8400
-
8450
MHz
FIXED
SPACE RESEARCH (deep space)(space-to-Earth)
ITU Region 1 Allocations
8400
-
8500
MHz
FIXED
MOBILE except aeronautical mobile
SPACE RESEARCH (space-to-Earth)
5.465
5.466
ITU Region 2 Allocations
8400
-
8500
MHz
FIXED
MOBILE except aeronautical mobile
SPACE RESEARCH (space-to-Earth)
5.465
5.466
ITU Region 3 Allocations
8400
-
8500
MHz
FIXED
MOBILE except aeronautical mobile
SPACE RESEARCH (space-to-Earth)
5.465
5.466
SpectrumWiki
NASA Deep Space Network (DSN)
Wideband Global SATCOM (WGS) System
Possible new FSS and maritime mobile-satellite allocations, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9
Possible allocations for FSS and maritime mobile-satellite service, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9
More...
Footnotes
5.465
In the space research service, the use of the band 8400-8450 MHz is limited to deep space.
5.466
Different category of service:
in Israel, Singapore and Sri Lanka, the allocation of the band 8400-8500 MHz to the space research service is on a secondary basis (see No. 5.32).
SpectrumWiki
NASA Deep Space Network (DSN)
According to NASA:
"The NASA Deep Space Network - or DSN - is an international network of antennas that supports interplanetary spacecraft missions and radio and radar astronomy observations for the exploration of the solar system and the universe. The network also supports selected Earth-orbiting missions.
"The DSN currently consists of three deep-space communications facilities placed approximately 120 degrees apart around the world: at Goldstone, in California's Mojave Desert; near Madrid, Spain; and near Canberra, Australia. This strategic placement permits constant observation of spacecraft as the Earth rotates, and helps to make the DSN the largest and most sensitive scientific telecommunications system in the world."
Frequency Bands
Band
Use
Service
Table
25.5
-
27
GHz
DSN K-Band Downlink (from spacecraft less than 2 million km from Earth)
Space Research (space-to-Earth)
F
Paired Frequency Bands
Paired Bands
Use
Service
Table
2025
-
2110
MHz
DSN S-Band Uplink (to spacecraft less than 2 million km from Earth)
Space Research (Earth-to-space)
F
2200
-
2290
MHz
DSN S-Band Downlink (from spacecraft less than 2 million km from Earth)
Space Research (space-to-Earth)
F
2110
-
2120
MHz
DSN S-Band Uplink (to spacecraft more than 2 million km from Earth)
Space Research (Earth-to-space)
F
2290
-
2300
MHz
DSN S-Band Downlink (from spacecraft more than 2 million km from Earth)
Space Research (deep space)
F
7145
-
7190
MHz
DSN X-Band Uplink (to spacecraft more than 2 million km from Earth)
Space Research (Earth-to-space)
F
8400
-
8450
MHz
DSN X-Band Downlink (from spacecraft more than 2 million km from Earth)
Space Research (deep space)
F
7190
-
7235
MHz
DSN X-Band Uplink (to spacecraft less than 2 million km from Earth)
Space Research (Earth-to-space)
F
8450
-
8500
MHz
DSN X-Band Downlink (from spacecraft less than 2 million km from Earth)
Space Research (space-to-Earth)
F
31.8
-
32.3
GHz
DSN Ka-Band Downlink (from spacecraft more than 2 million km from Earth)
Space Research (deep space)
F
34.2
-
34.7
GHz
DSN Ka-Band Uplink (to spacecraft more than 2 million km from Earth)
Space Research (Earth-to-space)
F
External Links:
NASA Deep Space Network
NASA DSN Frequency and Channel Assignments (DSN 810-005 part 201)
Display this entry in a page by itself
Edit
Wideband Global SATCOM (WGS) System
The Wideband Global SATCOM (WGS) System provides fixed site satellite service at X-band and Ka-band from geosynchronous earth orbit in support of US military operations worldwide.
As of April 2013, four WGS satellites are in orbit, a fifth is scheduled for launch in 2013, a sixth has completed testing, and four more are being built.
Paired Frequency Bands
Paired Bands
Use
Service
Table
7250
-
7750
MHz
X-band downlink
Fixed-satellite
F
7900
-
8400
MHz
X-band uplink
Fixed-satellite
F
20.2
-
21.2
GHz
Ka-band downlink
Fixed-satellite
-
30
-
31
GHz
Ka-band uplink
Fixed-satellite
-
External Links:
WGS Article on Wikipedia
Display this entry in a page by itself
Edit
Possible new FSS and maritime mobile-satellite allocations, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9
1.9 to consider, in accordance with Resolution COM6/15 (WRC-12):
1.9.1 possible new allocations to the fixed-satellite service in the frequency bands 7 150-7 250 MHz (space-to-Earth) and 8 400-8 500 MHz (Earth-to-space), subject to appropriate sharing conditions;
1.9.2 the possibility of allocating the bands 7 375-7 750 MHz and 8 025-8 400 MHz to the maritime-mobile satellite service and additional regulatory measures, depending on the results of appropriate studies
Frequency Bands
Band
Use
Service
Table
7150
-
7250
MHz
WRC-15 Agenda Item 1.9.1
Fixed-satellite (space-to-Earth)
-
8400
-
8500
MHz
WRC-15 Agenda Item 1.9.1
Fixed-satellite (Earth-to-space)
-
Display this entry in a page by itself
Edit
Possible allocations for FSS and maritime mobile-satellite service, 2015 World Radiocommunication Conference (WRC-15) Agenda Item 1.9
1.9 to consider, in accordance with Resolution COM6/15 (WRC-12):
1.9.1 possible new allocations to the fixed-satellite service in the frequency bands 7 150-7 250 MHz (space-to-Earth) and 8 400-8 500 MHz (Earth-to-space), subject to appropriate sharing conditions;
1.9.2 the possibility of allocating the bands 7 375-7 750 MHz and 8 025-8 400 MHz to the maritime-mobile satellite service and additional regulatory measures, depending on the results of appropriate studies;
Frequency Bands
Band
Use
Service
Table
7150
-
7250
MHz
Agenda Item 1.9.1
Fixed-satellite (space-to-Earth)
-
7375
-
7750
MHz
Agenda Item 1.9.2 (maritime mobile-satellite)
Mobile-satellite
-
8025
-
8400
MHz
Agenda Item 1.9.2 (maritime mobile-satellite)
Mobile-satellite
-
8400
-
8500
MHz
Agenda Item 1.9.1
Fixed-satellite (Earth-to-space)
-
Display this entry in a page by itself
Edit
Add New...
Related Documents, Links, and Multimedia:
Engineering Data
Lower Frequency
Center Frequency
Upper Frequency
Frequency
8.4 GHz
8.45 GHz
8.5 GHz
Wavelength
3.6 cm
3.5 cm
3.5 cm
Band designator(s)
SHF; X-band (IEEE)
SHF; X-band (IEEE)
SHF; X-band (IEEE)
Isotropic collecting area
1.0 cm
2
1.0 cm
2
1.0 cm
2
Free space loss (1 m)
50.9 dB
51.0 dB
51.0 dB
Free space loss (1 km)
110.9 dB
111.0 dB
111.0 dB
Free space loss (10 km)
130.9 dB
131.0 dB
131.0 dB
Free space loss (100 km)
150.9 dB
151.0 dB
151.0 dB
Free space loss (1000 km)
170.9 dB
171.0 dB
171.0 dB
Free space loss
(35,786 km = GEO orbit)
202.0 dB
202.1 dB
202.1 dB
Free space loss (378,370 km = Moon)
222.5 dB
222.5 dB
222.6 dB