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The website serves as a detailed source for understanding High Frequency (HF) radio propagation, combining practical tools and theoretical explanations to assist operators in optimizing communication conditions and predicting signal behavior.
Note:
Year
Theme:
Radio Wave Propagation
Document Type:
Website
Target Audience:
Amateur radio operators, professionals
Keywords:
HF radio waves, ionosphere, solar activity, space weather, communication, prediction tools, radio amateurs, ionosonde, propagation maps
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The product description is provided for reference. Actual content and formatting may differ slightly.
Year:
2019
Region / City:
Barcelona, Spain
Topic:
Quality Management System, Nuclear Safety
Document Type:
Report
Author:
R. Batista, D. Rodrigues, V. Meigan
Target Audience:
Stakeholders in nuclear safety and quality management systems
Period of Validity:
N/A
Approval Date:
December 11, 2019
Date of Modifications:
N/A
Organization:
United Nations Economic and Social Council
Document code:
ECE/TRANS/GRSP/year/xx
Distribution:
General
Original language:
English
Date:
14.09.2016
Subject:
Thermal runaway propagation in REESS for electric vehicles
Document type:
Technical rationale and draft regulatory test procedure
Related sections:
Paragraphs 5.3.x and 6.2.x
Scope:
Multi-cell thermal runaway propagation at battery pack level
Referenced standards:
UN 38.3; UN R100; SAE-J2464; IEC-62133; GB/T-31485
Applicable system:
Rechargeable Energy Storage System (REESS)
Context:
Electric vehicle battery safety regulation development
Year:
N/A
Region / City:
N/A
Subject:
Acoustics, Physics
Document Type:
Educational Material
Author:
N/A
Target Audience:
Students, Educators
Period of validity:
N/A
Approval Date:
N/A
Date of Changes:
N/A
Year:
2025
Region / City:
Geneva
Subject:
Radio-wave propagation
Document Type:
Recommendation
Organization / Institution:
ITU
Author:
ITU Radiocommunication Sector
Target Audience:
Radiocommunication professionals, researchers in wireless technologies
Validity Period:
2025
Approval Date:
September 2025
Date of Last Revision:
2025
Keywords:
Indoor propagation, basic transmission loss, delay spread, antenna radiation pattern, building materials
Scope:
Guidance on indoor propagation over the frequency range from 300 MHz to 450 GHz
Related Recommendations:
ITU-R P.676, ITU-R P.1407, ITU-R P.1411, ITU-R P.2040
Context:
A technical guideline on indoor radio propagation characteristics and prediction methods for system planning in the frequency range from 300 MHz to 450 GHz.
Year:
2025
Place of publication:
Geneva
Organization:
International Telecommunication Union Radiocommunication Sector (ITU-R)
Document type:
ITU-R Recommendation
Series:
P – Radio-wave propagation
Recommendation number:
ITU-R P.2001-6
Approval procedure:
Resolution ITU-R 1
Frequency range:
30 MHz to 50 GHz
Distance range:
3 km to at least 1 000 km
Subject:
Terrestrial radio-wave propagation modelling
Scope:
Prediction of basic transmission loss including fading and enhancement over 0% to 100% of an average year
Keywords:
Monte Carlo, diffraction, ducting, precipitation, layer reflection, troposcatter, gaseous absorption, sporadic-E
Related Question:
ITU-R 205/3
Revision years:
2012-2013-2015-2019-2021-2023-2025
Intellectual property policy:
Common Patent Policy for ITU-T/ITU-R/ISO/IEC
Authors:
Gladys Kianji; Justus Barongo; Eliud Mathu
Affiliations:
Department of Geology, University of Nairobi, Kenya; School of Earth Sciences, South Eastern Kenya University, Kitui
Corresponding author:
Gladys Kianji
Email:
[email protected]
Geographical area:
Nyanza Rift, Western Kenya, Lake Victoria region
Coordinates:
1°N–2°S, 33°E–35°E
Time coverage:
1913–June 2020
Keywords:
Seismicity; seismicity patterns; propagation; Nyanza Rift
Type of document:
Scientific research article
Discipline:
Geology; Seismology; Tectonics
Tectonic setting:
Eastern branch of the East African Rift System
Main structures:
Nandi Fault; Nyando Fault; Lambwe-Samanga Fault; Siria-Vitimbara Fault
Seismogenic zones identified:
Tinderet; Winam Gulf; Homabay-Rangwe; Southeast Lake Victoria; Sirisia-Vitumbara
Magnitude examples:
M5.4 (1 September 1957); M5.2 (14 August 1955); M4.9 (March 1968)
Seismic parameter:
Overall b-value 0.74
Faulting style:
Normal faulting with strike-slip component and low-angle over-thrust
One-sentence description:
Scientific research article analyzing seismicity patterns, fault structures, and seismogenic zones of the Nyanza Rift between 1913 and June 2020 to interpret its propagation from the Central Kenya Rift toward Lake Victoria within the East African Rift System.
Year:
2020
Region / City:
Elbonia
Topic:
Propagation delay compensation
Document Type:
Technical Specification
Organization:
3GPP RAN WG2
Author:
Ping-Heng Wallace KUO
Target Audience:
3GPP RAN WG1, 3GPP members
Validity Period:
N/A
Approval Date:
N/A
Amendment Date:
N/A
Year:
Not specified
Region / city:
Not specified
Topic:
Plant propagation
Document type:
Unit of competency
Organ / institution:
Not specified
Author:
Not specified
Target audience:
Individuals involved in plant propagation
Period of validity:
Not specified
Date of approval:
Not specified
Date of amendments:
Not specified
Year:
2021
Region / city:
ACT and NSW, Australia
Theme:
Public Health / Organizational Guidelines
Document type:
Guidelines / COVID-19 Safety Plan
Organization:
Australian Native Plants Society Canberra Region (ANPSC)
Author:
ANPSC Propagation Group and Council Members
Target audience:
ANPSC members participating in Propagation Bees
Effective period:
March 2021
Date approved:
2021-03-09
Insurance note:
ANPSC insurance does not cover COVID-19 but covers other incidents
Year:
2026
Region / country:
European Union
Subject:
Plant pests / phytosanitary status
Document type:
Pest risk assessment summary
Organization:
European Commission – Plant Health Unit
Target audience:
Plant health authorities, vegetable propagators
Host plant:
Apium graveolens
Pest category:
Bacteria
Evaluation status:
Not evaluated for RNQP status
Year:
2019
Region / City:
Missan, Iraq
Subject:
Optical Fiber Communication
Document Type:
Research Paper
Organization / Institution:
University of Basrah, Ministry of Education
Authors:
M. S. Jasim, H. A. Sultan, C. A. Emshary
Target Audience:
Researchers, Engineers, Academics in Optical Fiber Communication
Period of Action:
Not specified
Approval Date:
Not specified
Date of Modifications:
Not specified
Keywords:
optical fibers, attenuation, dispersion, soliton
Abstract:
Fiber optics being the most important in many of applications like medicine and communication. Many factors affect the light propagation through it, like attenuation, dispersion, and nonlinear effects.
Context Description:
A research paper analyzing the effect of attenuation and dispersion on the propagation of a Gaussian pulse in optical fibers using theoretical simulations.
Year:
2020
Region / City:
Boulder, CO, USA; Fort Collins, CO, USA
Subject:
Academic publishing guidelines, manuscript preparation
Document Type:
Instruction / Template
Institution:
IEEE, National Institute of Standards and Technology, Colorado State University
Authors:
First A. Author, Second B. Author, Third C. Author
Target Audience:
Researchers and authors submitting to IEEE OJAP
Funding:
Natural Sciences and Engineering Research Council (NSERC) of Canada
DOI:
10.1109/OAJPE.2020.2976889
Abstract Length Requirement:
150–250 words
Document Format:
Microsoft Word 6.0 or later, LaTeX compatible
Keywords:
Antennas, propagation, manuscript preparation, IEEE guidelines
License:
Creative Commons Attribution 4.0
Year:
2019
Organization:
International Telecommunication Union – Radiocommunication Sector (ITU-R)
Series:
P Series – Radiowave propagation
Document type:
International technical recommendation
Topic:
Radiowave propagation and interference evaluation
Frequency range covered:
100 MHz – 100 GHz
Subject:
Prediction of propagation losses for interfering signals between space stations and Earth stations
Related ITU-R Questions:
ITU-R 208/3
Approval procedure:
Resolution ITU-R 1
Place of publication:
Geneva
Publisher:
International Telecommunication Union
Revision history:
1986; 1990; 1992; 06/2017; 12/2017; 2019
Keywords:
interference, depolarization, beam spreading, scintillation, diffraction, ducting
Scope:
Methods and guidance for predicting propagation losses and assessing interference between stations in space and stations on or near the surface of the Earth
Year:
2021
Region / City:
Not specified
Topic:
Time synchronization, Propagation delay compensation
Document Type:
Meeting report
Organization / Institution:
3GPP
Author:
Huawei (Moderator)
Target audience:
Technical stakeholders in the telecommunications industry
Period of validity:
Not specified
Approval date:
Not specified
Date of changes:
Not specified
Note:
Year
Topic:
Produce Prescription Program, Community-Based Partnerships
Document Type:
Memorandum of Understanding (MOU)
Target Audience:
Community-based organizations, healthcare providers, clinics
Context:
Template for establishing a formal partnership agreement between a community-based organization and a clinic to implement a produce prescription program.
Year:
2016
Region / City:
Copenhagen
Subject:
IceCube Project Collaboration
Document Type:
Memorandum of Understanding
Organization:
Niels Bohr Institute – Københavns Universitet
Author:
Niels Bohr Institute
Target Audience:
Scientists, Post Docs, Graduate Students
Effective Period:
2016-2017
Approval Date:
Not specified
Modification Date:
Not specified
Year:
2017
Region / City:
[VA Organization 1]
Topic:
Air-Gapped Networks, Security
Document Type:
Template
Organization / Institution:
Department of Veterans Affairs
Author:
[Author Name]
Target Audience:
VA staff, [Organization 2] personnel
Period of Validity:
Indefinite
Approval Date:
12/11/2017
Date of Changes:
N/A
Year:
2016
Region / City:
Copenhagen
Subject:
IceCube Collaboration, Neutrino Research
Document Type:
Memorandum of Understanding
Institution:
Niels Bohr Institute, Københavns Universitet
Author:
D. Jason Koskinen, Mohamed Rameez, Tom Stuttard, Etienne Bourbeau, Markus Ahlers
Target Audience:
Ph.D. students, Post-docs, Faculty members, Research scientists
Period of validity:
2016–2018
Approval Date:
2016
Modification Date:
N/A
Year:
2025-2026
Region / City:
Oregon
Topic:
Long Term Services and Supports (LTSS), Medicaid
Document Type:
Guidance Document
Organization / Institution:
Oregon Health Authority (OHA), Aging and People with Disabilities (APD)
Author:
Oregon Health Authority
Target Audience:
Coordinated Care Organizations (CCOs), Area Agencies on Aging (AAAs), healthcare providers
Action Period:
2025-2026
Approval Date:
Not specified
Revision Date:
Not specified
Year:
2018
Region / City:
Australia
Topic:
Education
Document Type:
Curriculum Guidelines
Author:
New South Wales Department of Education
Target Audience:
Teachers, Educators, Students (Stage 1)
Period of Action:
2018 and onward
Approval Date:
Not specified
Date of Changes:
Not specified