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ITU-R P.1812-4 PDF

ITU-R P.1812-4 PDF

Name:
ITU-R P.1812-4 PDF

Published Date:
07/01/2015

Status:
[ Revised ]

Description:

A path-specific propagation prediction method for point-to-area terrestrial services in the VHF and UHF bands

Publisher:
International Telecommunications Union

Document status:
Active
Format:
Electronic (PDF)
Delivery time:
10 minutes
Delivery time (for Czech version):
200 business days
SKU:
itu-r-p-1812-4_2823753
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This Recommendation describes a propagation prediction method suitable for terrestrial point-to-area services in the frequency range 30 MHz to 3 GHz. It predicts signal levels at the median of the multipath distribution exceeded for a given percentage of time, p%, in the range 1% ≤ p ≤ 50% and a given percentage of locations, pL, in the range 1% ≤ pL ≤ 99%. The method provides detailed analysis based on the terrain profile.

The method is suitable for predictions for radiocommunication systems utilizing terrestrial circuits having path lengths from 0.25 km up to about 3 000 km distance, with both terminals within approximately 3 km height above ground. It is not suitable for propagation predictions on either air-ground or space-Earth radio circuits.

This Recommendation complements Recommendation ITU-R P.1546.


Edition : 4
Number of Pages : 37
Published : 07/01/2015

History

ITU-R P.1812-5
ITU-R P.1812-5
Published Date: 08/01/2019
A path-specific propagation prediction method for point-to-area terrestrial services in the VHF and UHF bands
17.10 €
ITU-R P.1812-4
ITU-R P.1812-4
Published Date: 07/01/2015
A path-specific propagation prediction method for point-to-area terrestrial services in the VHF and UHF bands
ITU-R P.1812-3
ITU-R P.1812-3
Published Date: 09/01/2013
A path-specific propagation prediction method for point-to-area terrestrial services in the VHF and UHF bands
ITU-R P.1812-2
ITU-R P.1812-2
Published Date: 02/01/2012
A path-specific propagation prediction method for point-to-area terrestrial services in the VHF and UHF bands
ITU-R P.1812-1
ITU-R P.1812-1
Published Date: 10/01/2009
A path-specific propagation prediction method for point-to-area terrestrial services in the VHF and UHF bands
ITU-R P.1812
ITU-R P.1812
Published Date: 01/01/2007
A path-specific propagation prediction method for point-to-area terrestrial services in the VHF and UHF bands

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