Propagation
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DX.QSL.NET Propagation
This page contains dynamically updated propagation information.
HF Propagational Resources
Create Online Maps, Check Forcasts and Conditions, more features being added each month, by hfradio.org
Tropospheric Ducting Forecast
William Hepburn's Daily Tropospheric Ducting Forecast.
WM7D Solar Resources
Solar Flux reports, Current Alerts and Warnings from NOAA, 27 day forcast from NOAA, charts reflecting the past 7 years Solar cycle summary charts from NOAA
Basics of Radio Wave Propagation
Exaustive introduction to radio wave propagation, includes a very detailed glossary on common propagation terms, composed by AE4TM.
The DXrobot - Spots e-skip and aurora alerts
Automatic e-skip and aurora alerts via email or SMS, it sends also latest dxspots via email.
Understanding propagation numbers
Quick reference table on understanding A K SFI indexes and how can be translated in usable frequency opportunities
PA1SIX six meter propagation
F2 and TE propagation on 6 meter
Long Path Propagation
Long path hf radio propagation is sometimes the best path to work dx, since the shortest path is not always the best path.
Amateur Radio Propagation RSS (XML) Live Feed
Live space weather and propagation data, in RSS (XML) format.
N0NBH Solar Terrestrial Data
Add Solar-Terrestrial data to your website, by adding a simple html code to your pages by Paul L Herrman
Radio Propagation
Spread Spectrum Scene. Radio Propagation notes, with downloadable files.
Introduction to VHF Propagation
Understanding basic VHF and UHF propagation, eskip, Backscatter, Meteor Scatter and more
HF Propagation Primer
Flash Movie describing HF (shortwave) radio propagation to beginners. Very helpful aid in understanding.
Propagation Links
Popagation studies committee
This page is about the RSGB s Propagation Studies Committee its work services and current ...
[ Hits: 916 | Votes: 2 | Rating: 3.5 ]
What is Radio Propagation - RF propagation - Ian Poole
Discover the key facts about what radio propagation is the different types available and how ...
[ Hits: 199 | Votes: 1 | Rating: 10 ]
A & K Graph by WN6K
Latest solar charts by WN6K, wit A & K Indexes.
[ Hits: 910 | Votes: 0 | Rating: 0 ]
A and K index in propagation
The understanding of the A and K indexes will become a very important issue when ...
[ Hits: 410 | Votes: 2 | Rating: 4.5 ]
Amateur Chirp Project
Amateur projects to investigate radiowave propagation G3PLX s chirp project ionosonde database and more ...
[ Hits: 528 | Votes: 0 | Rating: 0 ]
Amateur Radio Propagation RSS (XML) Live Feed - Tomas Hood
Live space weather and propagation data, in RSS (XML) format.
[ Hits: 2507 | Votes: 5 | Rating: 2.6 ]
Amateur Radio Propagation Studies - Volker
Amateur radio propagation studies science research engineering operating and the BeamFinder propagation analysis software ...
[ Hits: 1457 | Votes: 11 | Rating: 8 ]
An Introduction to HF Propagation - G4UCJ
This article is designed to be an introduction to the terms and basic mechanics of ...
[ Hits: 1121 | Votes: 3 | Rating: 7 ]
Analyzing UHF signals using FFT programs
With spectrum analysis of beacon signals it s possible to see features relating to various ...
[ Hits: 785 | Votes: 0 | Rating: 0 ]
Basics of Propagation by ON4SKY - Thierry LOMBRY, ON4SKY
Thierry LOMBRY ON4SKY develops in several long articles the bascis of propagation His website includes ...
[ Hits: 1292 | Votes: 1 | Rating: 10 ]
Basics of Radio Wave Propagation
Exaustive introduction to radio wave propagation includes a very detailed glossary on common propagation terms ...
[ Hits: 4719 | Votes: 27 | Rating: 7.57 ]
Check DX Propagation with Beacons
W0RW article that guide you to using beacons to determine dead bands or upcoming propagation ...
[ Hits: 1682 | Votes: 3 | Rating: 4 ]
CT1BOH Solar Page
Collection of real time solar data by CT1BOH
[ Hits: 329 | Votes: 0 | Rating: 0 ]
DX.QSL.NET Propagation - Doug Brandon
This page contains dynamically updated propagation information.
[ Hits: 12962 | Votes: 48 | Rating: 6.22 ]
Electromagnetic Wave Propagation by Conduction
A sacrilegious re examination of current wave propagation theory and proposal of a new more ...
[ Hits: 300 | Votes: 0 | Rating: 0 ]
G7IZU Radio Reflection Detection Page - Andy Smith
Meteor Shower Aurora Sporadic E and Solar Flares detected using Radio Signal Reflection by Andy ...
[ Hits: 808 | Votes: 6 | Rating: 8.33 ]
Google Earth 4-D Inonosphere
Free real time Earth Space 4 D global 4 D ionosphere using Google Earth by ...
[ Hits: 811 | Votes: 5 | Rating: 7.4 ]
Greyline propagation
About greyline propagation in HF bands
[ Hits: 552 | Votes: 0 | Rating: 0 ]
Ground Wave Signal Propagation
Article on propagation basics The ground wave used for radio communications signal propagation on the ...
[ Hits: 406 | Votes: 0 | Rating: 0 ]
Guide to Solar Activity for QRPer - NA5N
Paul Harden NA5N has produced a superb guide to solar activity and HF propagation for ...
[ Hits: 1096 | Votes: 3 | Rating: 7 ]
Here Comes the Sun - Propagation and Sun
Solar activity can aid or hamper HF propagation beyond line of sight range WA1SVF and ...
[ Hits: 580 | Votes: 0 | Rating: 0 ]
HF - VHF Radiowave Propagation Center - Tomas Hood
High frequecy and VHF radio propagation data solar and geomagnetic real time and historic data ...
[ Hits: 1435 | Votes: 2 | Rating: 7.5 ]
HF Propagation and the Ionosphere - ZL1BPU
This page is about the Ionosphere how it was discovered what it is and what ...
[ Hits: 263 | Votes: 1 | Rating: 9 ]
HF Propagation Primer - Geoffrey Noles
Flash Movie describing HF shortwave radio propagation to beginners Very helpful aid in understanding ...
[ Hits: 1716 | Votes: 21 | Rating: 8.67 ]
HF Propagational Resources - Tomas
Create Online Maps Check Forcasts and Conditions more features being added each month by hfradio ...
[ Hits: 7077 | Votes: 177 | Rating: 8.66 ]
HF Radio wave propagation
Radiowave propagation in the medium and high frequency spectrum in DOC format
[ Hits: 954 | Votes: 3 | Rating: 3.33 ]
Introduction to VHF Propagation
Understanding basic VHF and UHF propagation, eskip, Backscatter, Meteor Scatter and more
[ Hits: 2139 | Votes: 6 | Rating: 3.5 ]
Ionosphere Web Site
Ionospheric Data Archived at NGDC
[ Hits: 828 | Votes: 1 | Rating: 9 ]
Ionospheric T Index - INFO
T index explained BY NOAA
[ Hits: 643 | Votes: 3 | Rating: 3 ]
Is HF propagation reciprocal
Some test circuits using the ACE HF System Simulation Visualization software about reciprocal propagation on ...
[ Hits: 523 | Votes: 1 | Rating: 7 ]
KN4LF LF/MF/HF Radio Propagation Theory Notes - Thomas Giella
Layman level explanations of "seemingly" mysterious LF MF and HF propagation occurrences.
[ Hits: 776 | Votes: 1 | Rating: 10 ]
Long Path Propagation
Long path hf radio propagation is sometimes the best path to work dx since the ...
[ Hits: 2590 | Votes: 7 | Rating: 5.43 ]
N0NBH Solar Terrestrial Data
Add Solar Terrestrial data to your website by adding a simple html code to your ...
[ Hits: 2482 | Votes: 18 | Rating: 7.55 ]
PA1SIX six meter propagation
F2 and TE propagation on 6 meter
[ Hits: 2677 | Votes: 17 | Rating: 6.94 ]
Propagation and the Atmosphere
overview of radio signals and radiowave propagation and how different areas of the atmosphere affect ...
[ Hits: 389 | Votes: 2 | Rating: 9.5 ]
Propagation eAlert Service - NW7US
Automatic e mail alert of propagation information Gives current solar flux Ap Kp solar wind ...
[ Hits: 856 | Votes: 1 | Rating: 10 ]
Propagation Forecast by AD5Q
11 Years of monthly propagation reports from February 1988 to January 1999 by AD5Q ...
[ Hits: 795 | Votes: 1 | Rating: 7 ]
Propagation on 137 kHz
Propagation in the LF-Band
[ Hits: 571 | Votes: 2 | Rating: 1 ]
Propagation on 630 Meters and 2200 Meters - K9LA
This is a theoretical look at propagation on 630 Meters and 2200 Meters using ray ...
[ Hits: 38 | Votes: 1 | Rating: 10 ]
Proppy HF Circuit Prediction: Space Weather - James Watson
Current space weather condition gauges with solar indices taken from the latest WWV report ...
[ Hits: 137 | Votes: 2 | Rating: 9.5 ]
Questions on VHF Propagation
A collection of ad Hoc empirical comments on VHF radio waves propagation by Pete Heins ...
[ Hits: 513 | Votes: 0 | Rating: 0 ]
Radio Propagation
Spread Spectrum Scene. Radio Propagation notes, with downloadable files.
[ Hits: 2211 | Votes: 0 | Rating: 0 ]
Radio Signal Path Loss - radio-electronics.com
Article about the essentials of radio signal path loss its causes and prediction and its ...
[ Hits: 188 | Votes: 0 | Rating: 0 ]
Radiowave Propagation Center - Robert Brown
High frequecy and VHF radio propagation data solar and geomagnetic real time and historic data ...
[ Hits: 444 | Votes: 1 | Rating: 10 ]
Short Wave Propagation
Introduction to shortwave propagation
[ Hits: 413 | Votes: 3 | Rating: 5 ]
Small Antennas for High Frequencies
This is about Small Antenna types and their properties which can help choosing proper antenna ...
[ Hits: 723 | Votes: 2 | Rating: 6 ]
Space weather impacts on Climate - NOAA
About impacts of solar weather changes including effects of the solar cycle on weather on ...
[ Hits: 119 | Votes: 1 | Rating: 6 ]
Stanford Solar Center
Providing solar on-line activity resources for the joy of solar science exploration
[ Hits: 558 | Votes: 0 | Rating: 0 ]
The 160-Meter Band: An Enigma Shrouded in Mystery
Lights on why 160 meters is so unpredictable and what is being done to reveal ...
[ Hits: 1154 | Votes: 1 | Rating: 9 ]
The DXrobot - Spots e-skip and aurora alerts - Allard PE1NWL
Automatic e skip and aurora alerts via email or SMS it sends also latest dxspots ...
[ Hits: 2817 | Votes: 5 | Rating: 9.4 ]
The ionosphere at VHF - EA6VQ
Influence of the ionosphere on the EME signals by EAVQ
[ Hits: 612 | Votes: 0 | Rating: 0 ]
The PropNET Project
PropNET is an ad hoc 2 way and potentially more way RF based digital communication ...
[ Hits: 368 | Votes: 0 | Rating: 0 ]
Troposcatter propagation
Introduction to troposcatter or tropospheric scatter propagation using the troposphere
[ Hits: 379 | Votes: 0 | Rating: 0 ]
Tropospheric Ducting - ProAudio Eng
In the spring and during certain climatic events radio waves can travel long distances due ...
[ Hits: 123 | Votes: 0 | Rating: 0 ]
Tropospheric Ducting Forecast - David Pollard, N5IT
William Hepburn's Daily Tropospheric Ducting Forecast.
[ Hits: 5975 | Votes: 28 | Rating: 7.87 ]
Tropospheric propagation
Article about tropospheric propagation and the way in which radio signals at VHF and above ...
[ Hits: 315 | Votes: 0 | Rating: 0 ]
Understanding propagation numbers
Quick reference table on understanding A K SFI indexes and how can be translated in ...
[ Hits: 2750 | Votes: 4 | Rating: 10 ]
Understanding Solar Indices
Solar Flux, Geomagnetic Activity indexes and interpreting their relation
[ Hits: 621 | Votes: 1 | Rating: 10 ]
Unpredictable Aspects of 160 meter Propagation - NM7M
Come learn why it is very difficult to predict propagation on the top band Ionospheric ...
[ Hits: 65 | Votes: 0 | Rating: 0 ]
Using PSK Reporter as Propagation Tool - K8ZT
PSK Reporter is a powerful tool for monitoring your FT8 JT65 or PSK signals around ...
[ Hits: 193 | Votes: 1 | Rating: 8 ]
VHF APRS Propagation Map - APRS
VHF Based on realtime APRS reports This map shows real time radio propagation from stations ...
[ Hits: 315 | Votes: 0 | Rating: 0 ]
VOACAP Quick Guide - OH6BG
A Quick Guide to using VOACAP Point to Point High Frequency Ionospheric Communications Analysis and ...
[ Hits: 670 | Votes: 7 | Rating: 4.71 ]
Watching Propagation with FT8 Spots - M1GEO
Monitoring propagarion during the day using FT8 reception reprts to determine openings and quality of ...
[ Hits: 149 | Votes: 0 | Rating: 0 ]
Waveguide basics tutorial
Summary tutorial about the basics of what is a waveguide and the basic waveguide theory ...
[ Hits: 520 | Votes: 1 | Rating: 8 ]
What the numbers mean in propagation
What the Numbers Mean and Propagation Predictions a brief introduction to propagation and the major ...
[ Hits: 480 | Votes: 0 | Rating: 0 ]
What to Expect at Solar Minimum - K9LA
Article on operating aids and band usage during solar minimun periods Author tries to explain ...
[ Hits: 230 | Votes: 1 | Rating: 1 ]
Why AM Listening is Better at Night - C. Crane
A nice article expleraing why during the sunset it s possible to listen to long ...
[ Hits: 443 | Votes: 1 | Rating: 10 ]
WM7D Solar Resources
Solar Flux reports Current Alerts and Warnings from NOAA 27 day forcast from NOAA charts ...
[ Hits: 5733 | Votes: 17 | Rating: 8.7 ]
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