|
Rec. ITU-R P.368 | Ground-wave propagation method for frequencies between 10 kHz and 30 MHz | All services | Point-to-point
| Field strength | 10 kHz to 30 MHz | 1 to 10 000 km | Not applicable | Not applicable | Ground-based
| Frequency,
Antenna heights,
Transmit power,
Surface refractivity,
Path distance,
Ground relative permittivity and conductivity,
Polarization |
Rec. ITU-R P.452
| Prediction procedure for the evaluation of interference between stations on the surface of the Earth at frequencies above about 100 MHz | Services employing stations on the surface of the Earth; interference | Point-to-point
| Basic transmission loss | 100 MHz to 50 GHz | Not specified but up to and beyond the radio horizon | 0.001 to 50
Average year and worst month
| Not applicable | No limits specified, within the surface layer of the atmosphere.
(Not suitable for aeronautical applications) | Path profile data (bare terrain heights, clutter heights and radio-climatic zone types),
Frequency,
Percentage time,
Tx and Rx antenna heights,
Tx and Rx latitudes and longitudes,
Meteorological data,
Polarization |
|
Rec. ITU-R P.528 | A propagation prediction method for aeronautical mobile and radionavigation services using the VHF, UHF and SHF bands | Aeronautical
mobile | Point-to-area | Basic transmission loss
| 100 MHz to 30 GHz | Not specified but up to and beyond the radio horizon
For aeronautical applications 0 km great circle distance does not mean 0 km path length. | 1 to 99 | Not applicable | Terminal heights: 1.5 - 20 000 m | Distance,
Frequency,
Tx and Rx heights,
Percentage time,
Polarization |
Rec. ITU-R P.530
| Propagation data and prediction methods required for the design of terrestrial line-of-sight systems | Line-of-sight fixed links | Point-to-point line-of-sight | Propagation loss
Diversity improvement (clear air conditions)
XPD(2)
Outage
Error performance | Approximately
150 MHz to
175 GHz | Up to 200 km if line-of-sight | All percentages of time in clear‑air conditions;
1 to 0.001 in
precipitation conditions(1) And worst month for attenuation | Not applicable | High enough to ensure specified path clearance | Distance,
Frequency,
Tx and Rx heights,
Percentage time,
Path obstruction data,
Climate data,
Terrain information
|
Rec. ITU-R P.533
| Method for the prediction of the performance of HF circuits
| Broadcasting Fixed Mobile
| Point-to-point
| Basic MUF Sky wave field strength Available receiver power Signal-to-noise ratio LUF Circuit reliability
| 2 to 30 MHz
| 0 to 40 000 km
| All percentages
| Not applicable
| Not applicable
| Tx and Rx latitudes and longitudes,
Sunspot number, Month,
Time(s) of day Frequencies.
Tx power,
Tx and Rx antenna types |
Rec. ITU-R P.534
| Method for calculating sporadic-E field strength
| Fixed Mobile Broadcasting
| Point-to-point via sporadic E
| Field strength
| 30 to 100 MHz
| 0 to 4 000 km
| 0.1 to 50
| Not applicable
| Not applicable
| Distance, Frequency
|
Rec. ITU-R P.617
| Propagation prediction techniques and data required for the design of trans-horizon radio-relay systems
| Trans-horizon fixed links
| Point-to-point
| Basic transmission loss
| > 30 MHz
| 100 to 1 000 km
| 0.001 to 99.999
| Not applicable
| No limits specified within the surface layer of the
atmosphere. (Not suitable for aeronautical applications)
| Frequency,
Tx and Rx antenna gains,
Path geometry
|
Rec. ITU-R P.618
| Propagation data and prediction methods required for the design of Earth-space telecommunication systems
| Satellite
| Point-to-point
| Propagation loss Diversity gain and (for precipitation condition) XPD(2)
| 1 to 55 GHz
| Any practical orbit height
| 0.001-5 for rain attenuation; 0.001-50 for total attenuation, 0.001-1 for XPD(2) Also worst month for attenuation
| Not applicable
| No limit
| Meteorological data,
Frequency Elevation angle, Height of earth station, Separation and angle between earth station sites (for diversity gain),
Antenna diameter and efficiency (for scintillation), Polarization angle (for XPD(2)) |
Rec. ITU-R P.619
| Propagation data required for the evaluation of interference between stations in space and those on the surface of the Earth
| Satellite
| Point-to-point
| Basic transmission loss for single-entry interference Clear-air basic transmission loss for multiple-entry interference
| 0.1 to 100 GHz
| Any practical orbit height
| 0.001 to 50
| Not applicable
| No limit
| Frequency,
Earth-station elevation angle, Angular path separation,
Path length Gaseous attenuation, Scintillation “gain”,
Maximum allowed attenuation of the wanted signal
|
Rec. ITU-R P.620
| Propagation data required for the evaluation of coordination distances in the frequency range 100 MHz to 105 GHz
| Earth station frequency coordination
| Coordination distance
| Distance of which the required propagation loss is achieved
| 100 MHz to 105 GHz
| Up to 1 200 km
| 0.001 to 50
| Not applicable
| No limits specified within the surface layer of the atmosphere. (Not suitable for aeronautical applications)
| Minimum basic transmission loss, Frequency, Percentage of time,
Earth-station elevation angle
|
Rec. ITU-R P.678
| Characterization of the variability of propagation phenomena and estimation of the risk associated with propagation margin
| Rain rate models Satellite
| Point-to-point
| Variability of propagation phenomena
| 12 to 50 GHz
| Any practical orbit height
| 0.01-2 for rainfall rate and rain attenuation along slant paths
| Not applicable
| No limit
| Probability of exceedance
|
Rec. ITU-R P.679
| Propagation data required for the design of broadcasting-satellite systems
| Broadcast satellite
| Point-to-area
| Excess basic transmission loss Effect of local environment
| 0.5 to 5.1 GHz
| Any practical orbit height
| Not applicable
| No limits specified
| No limits specified
| Frequency, Elevation angle, Features of local environment
|
Rec. ITU-R P.680
| Propagation data required for the design of Earth-space maritime mobile telecommunication systems
| Maritime mobile satellite
| Point-to-point
| Sea-surface fading Fade duration Interference (adjacent satellite)
| 0.8-8 GHz
| Any practical orbit height
| To 0.001% via Rice-Nakagami distribution Limit of 0.01% for interference(1)
| Not applicable
| No limit
| Frequency, Elevation angle, Maximum antenna boresight gain
|
Rec. ITU-R P.681
| Propagation data required for the design of systems in the land mobile-satellite service | Land mobile satellite
| Point-to-point
| Path fading Fade duration Non-fade duration
| 0.8 to 20 GHz
| Any practical orbit height
| Not applicable Percentage of distance travelled 1 to 80%(1)
| Not applicable
| No limit
| Frequency, Elevation angle, Percentage of distance travelled, Approximate level of optical shadowing
|
Rec. ITU-R P.682
| Propagation data required for the design of Earth-space aeronautical mobile telecommunication systems
| Aeronautical mobile satellite
| Point-to-point
| Sea surface fading Multipath from ground and aircraft during landing
| 1 to 2 GHz (sea-surface fading)
1 to 3 GHz (multipath from ground)
| Any practical orbit height
| To 0.001% via Rice-Nakagami distribution(1)
| Not applicable
| No limit for sea-surface fading Up to 1 km for ground reflection during landing
| Frequency, Elevation angle, Polarization, Maximum antenna boresight gain, Antenna height
|
Rec. ITU-R P.684
| Prediction of field strength at frequencies below about 150 kHz
| Fixed Mobile
| Point-to-point Point-to-area
| Sky wave field strength
| 30 to 150 kHz
| 0 to 16 000 km
| 50
| Not applicable
| Not applicable
| Tx and Rx latitudes and longitudes,
Distance,
Tx power, Frequency, Ground constants, Season,
Sunspot number, Hour of day
|
Rec. ITU-R P.843
| Communication by meteor-burst propagation
| Fixed Mobile Broadcasting
| Point-to-point via meteor burst
| Received power Burst rate
| 30 to 100 MHz
| 100 to 1 000 km
| 0 to 5
| Not applicable
| Not applicable
| Frequency, Distance,
Tx power, Antenna gains
|
Rec. ITU-R P.1147
| Prediction of sky-wave field strength at frequencies between about 150 and 1 700 kHz
| Broadcasting
| Point-to-area
| Sky-wave field strength
| 0.15 to 1.7 MHz
| 50 to 12 000 km
| 1, 10, 50
| Not applicable
| Not applicable
| Tx and Rx latitudes and longitudes,
Distance, Sunspot number, Tx power, Frequency
|
Rec. ITU-R P.1238
| Propagation data and prediction methods for the planning of indoor radiocommunication systems and radio local area networks in the frequency range from 300 MHz to 450 GHz
| Mobile RLAN
| In building propagation methods
| Basic transmission loss
Delay spread
| 300 MHz to 450 GHz
| Within buildings
| Not applicable
| Not applicable
| Base: about 2-3 m Mobile: about 0.5-3 m
| Frequency, Distance,
Floor and wall factors
|
Rec. ITU-R P.1410
| Propagation data and prediction methods required for the design of terrestrial broadband radio access systems operating in a frequency range from 3 to 60 GHz
| Broadband radio access
| Point-to-area
| Coverage Temporal coverage reduction due to rain
| 3 to 60 GHz
| 0-5 km
| 0.001 to 1 (for calculating reduction in coverage due to rain)
| Up to 100
| No limit;
0-300 m (typical)
| Frequency,
Cell size,
Terminal heights,
Building height,
Statistical parameters
|
Rec. ITU-R P.1411
| Propagation data and prediction methods for the planning of short-range outdoor radiocommunication systems and radio local area networks in the frequency range 300 MHz to 300 GHz
| Mobile
| Short-path propagation methods
| Basic transmission loss Delay spread
| 300 MHz to 300 GHz
| < 1 km
| Not applicable
| 1 to 99 (Section 4.3.1) | Base: about 4-50 m Mobile: about 0.5-3 m
| Frequency,
Distance,
Street dimensions, Structure heights,
Percentage locations (for Section 4.3.1) |
Rec. ITU-R P.1546
| Method for point-to-area predictions for terrestrial services in the frequency range 30 MHz to 4 000 MHz
| Terrestrial services
| Point-to-area
| Field strength
| 30 to 4 000 MHz
| up to 1 000 km
| 1 to 50
| 1 to 99
|
Tx/base: effective height from less than
0 m to
3 000 m
Rx/mobile:
³ 1 m
| Terrain height and ground cover (optional),
Path type classification and distance traversed for each type, Distance,
Tx antenna height,
Tx effective antenna height,
Tx transmit power,
Area type around the Tx,
Tx and Rx terrain height,
Frequency,
Rx antenna height,
Representative clutter around Tx and Rx,
Rx terrain clearance angle,
Tx and Rx effective terrain clearance angles,
Percentage time,
Percentage locations,
Refractivity gradient
|
Rec. ITU-R P.1622
| Prediction methods required for the design of Earth-space systems operating between 20 THz and 375 THz
| Satellite optical links
| Point-to-point
| Absorption loss Scattering loss Background noise Amplitude scintillation Angle of arrival
Beam wander Beam spreading
| 20 to 375 THz
| Far-field Earth-to-space optical links
| Not applicable
| Not applicable
| No limit
| Wavelength,
Terminal height,
Elevation angle,
Turbulence structure parameter
|
Rec. ITU-R P.1623
| Prediction method of fade dynamics on Earth-space paths
| Satellite
| Point-to-point
| Fade duration, fade slope
| 10 to 50 GHz
| Any practical orbit height
| Not applicable
| Not applicable
| No limit
| Frequency, Elevation angle, Attenuation threshold,
Filter bandwidth
|
Rec. ITU-R P.1812
| A path-specific propagation prediction method for point-to-area terrestrial services in the frequency range 30 MHz to 6 GHz
| Terrestrial services
| Point-to-area
| Field strength
| 30 MHz to 6 GHz
| Not specified but up to and beyond the radio horizon
| 1 to 50
| 1 to 99
| No limits specified, within the surface layer of the atmosphere. (Not suitable for aeronautical applications)
| Path profile data (bare terrain, clutter heights and radio-climatic zone types), Frequency, Percentage time, Tx and Rx antenna heights,
Tx and Rx latitudes and longitudes,
Meteorological data,
Polarization
|
Rec. ITU-R P.1814
| Prediction methods required for the design of terrestrial free-space optical links
| Terrestrial optical links
| Point-to-point
| Absorption loss Scattering loss Background noise Amplitude scintillation Beam spreading
| 20 to 375 THz
| ≤ 5 km
| Not applicable
| Not applicable
| No limit
| Wavelength, Visibility (in fog), Path length,
Turbulence structure parameter
|
Rec. ITU-R P.1853
| Time series synthesis of tropospheric impairments | Terrestrial satellite
| Point-to-point
| Rain attenuation for terrestrial paths Total attenuation and tropospheric scintillation for Earth-space paths
| 4 to 40 GHz for terrestrial paths 4 to 55 GHz for Earth-space paths
| Between 2 and 60 km for terrestrial paths GEO satellite
| Not applicable
| Not applicable
| No limit
| Meteorological data,
Frequency, Elevation angle, Height of earth station,
Separation and angle between earth station sites (for diversity gain), Antenna diameter and efficiency (for scintillation)
|
Rec. ITU-R P.2001
| A general purpose wide-range terrestrial propagation model in the frequency range 30 MHz to 50 GHz
| Terrestrial services
| Point-to-point
| Basic transmission loss
| 30 MHz to 50 GHz
| Up to at least 1 000 km
| Between 0 and 100% | Not applicable
| < 8000 m above m.s.l. but near the ground, within the troposphere
| Path profile data (bare terrain heights, radio-climatic zone types),
Frequency Percentage time,
Tx and Rx antenna height, gains and azimuthal directions,
Tx and Rx latitudes and longitudes,
Polarization
|
Rec. ITU-R P.2041
| Prediction of path attenuation on links between an airborne platform and Space and between an airborne platform and the surface of the Earth
| Airborne | Point-to-point
| Total attenuation
| 1 to 55 GHz
| Any height
| 0.001 to 50
| Not applicable
| Between the surface of the Earth and space
| Meteorological data,
Frequency,
Elevation angle,
Availability,
Height of airborne platform,
Antenna diameter and efficiency (for scintillation)
|
Rec. ITU-R P.2170
| Methods and models for predicting lunar radio-wave propagation characteristics
| All services operating on or near the lunar surface
| Point-to-point and point-to-area
| Attenuation relative to free space
| 20 MHz to 37 GHz
| 0.5 to 500 km (point-to-area) and 0.1 to 500 km (point-to-point) for terminals on the lunar surface
| Not applicable
| 0 < p < 100
| 0.5 m to 3 km where the elevation angle from the antenna to the horizon < 200 mrad
| Input parameters for both modes: Frequency, Terminal heights, Fraction of locations of interest,
Surface transfer impedance of the lunar surface, Elevation angle from terminal-to-termina,l Polarization
Point-to-area mode:
Horizontal smooth surface distance between the terminals,
Terrain irregularity
Point-to-point mode:
Vector of uniformly-spaced horizontal distances between terminals,
Lunar terrain elevations at uniformly-space horizontal distances between terminals
|
(1) Time percentage of outage; for service availability, subtract value from 100.
(2) XPD: Cross-polarization discrimination.
|