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Juneau Amateur Radio Club, Inc.

KL7JRC
Propagation
   


                   


Solar Data/Propagation Link:

http://www.hamqsl.com/solar.html



Online Links and Favorites





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WM7D Callsign Lookup:  

Other Solar Data Sources
Of course I think my Solar Widget(s) are the best, but there are other free sources available. You choose which one you like the best.


Julian (G4ILO) offers an html panel (WebProp) with SN, flux, Indicies, and band conditions. 
Patrick (N0HR) offers a solar panel (PropagationStats) with flux, Indicies, and warnings. 

Kevin (N3KL) offers two status bars for X-ray and Geomag field. 

Anthony (KA9NWM) at wattsupwiththat offers a World Climate Widget with SN, Flux, and solar image. 

Allard (PE1NWL) at DXrobot - Gouda offers five band condition status bars for VHF Aurora, North American 2m Es, and Europe 2/4/6m Es. 

Ansgar (DG2KBC) at Make More Miles on VHF offers three status graphs for EME, Europe Es and Meteor Scatter. 

Elmer (PH5E) at Rig Reference offers a widget that indicates which current HF bands are open. 

Claudio (IW1QLH) at HRDLOG offers a gadget that indicates current HF activity, solar image, solar flux, & sunspot number. 

Derek (W4DTB) at OCRA offers a gadget that uses the N0NBH xml file to create a text and image gadget similar to what I offer from a php file. You can download the Source and some examples, along with the readme file from the following link. 

Misc Ham 

APRS Home Page

javAPRS Page

AMSAT Home Page

EHam Home Page

QRZ Home Page

QTH Home Page

QSL Home Page

Mods DK Home Page

HAM DMZ RO Home Page

Rigpix Home Page

Band Chart #1

Band Chart #2

US Grid Square Chart

US Freq Allocation Chart

Clipart Favorites 
JPL Image Home Page - Kewl Space Art

ClipartPoint Home Page - Animations & clipart

GifAnimations Home Page - Animations

3G on W3 - Globes & Maps

More Animations

NASA/JPL Favorites 
Mars Rover Home Page

Cassini Home Page

Hubble Home Page

Better Hubble Page







 CME UPDATES
I am posting the NOAA SWPC WSA-Enlil CME updates on my Online Propagation Tools/Converters page as I receive them from NOAA. These are updated when a CME event is predicted, and contain the display and detailed information about future CME events. 
IMPORTANT NOTICE
A broken icon on any gadget/webpage indicates your computer is in the banned IP file (excessive refreshes). To be removed, #1 obtain your IP address, then #2 email me with your IP address. Those using K7MHI gadget V1.5.1.0 (reason for banning) need to download & install V1.5.1.1 first. 
Webmasters that want to cache multiple banners on your server (you can cache up to 9 on your server for use on your web page without anyone unintentionally being banned), download this file, and follow the directions. If you have any problems, just email me with your questions. 
HF Propagation Tools and Solar Data are now on multiple pages for faster loading
Use the buttons at the top and bottom of the page to navigate, or use the following links: 
For Online MOF/LOF HF Propagation Prediction Tool, NOAA's SWPC WSA-Enlil Coronal Mass Ejection (CME) Solar Wind Prediction Model, and conversion tools click here 
For Understanding/Using Solar-Terrestrial Data, Solar Images, and HF Tutorials click here 
For current Space Weather and HF Propagation Conditions, and MUF Maps click here 
I created a printable pdf presentation that contains tutorials and information on understanding radio propagation, and how to use all the data contained in the solar panels. You can download from this link 
I created a printable pdf presentation that contains detailed instructions on adding a banner to your www.qrz.com BIO page. You can download from this link 

Displaying Solar-Terrestrial Data Panels on your site, computer, or other personal device


Add Solar-Terrestrial Data to your Website

Solar banners are available in 19 different configurations (see below), with variations of solar indicies and measurements, HF Conditions, VHF Conditions, EME degradation, selectable and fixed MUF, selectable K index (impacts conditions), signal noise and geomagnetic conditions, current secletable solar images, world sunlight maps and globes, moon view globe, graphs and plots, and selectable current solar system planet locations. 
HF Propagation predictions are just that, predictions calculated using the available data. Of course, actual conditions at your location depend on a lot of additional items. The only sure-fire way to determine if the bands are open is to fire up that HF rig and get on the air! 
Data for VHF Conditions is from DXrobot - Gouda and Make More Miles on VHF (used with permission). 
Data for solar data and conditions from NOAA SWPC, solar flux from Space WX Canada, solar images from NASA, and world map/globes/solar system from Fourmilab (credit given). 
Just cut and Paste html into your web page. You can customize most banners with selectable data, images, etc so its unique (not sure why most of you are not using this feature!) Refer to the HAMQSL FAQ Page for complete modification instructions. 

THANKS
Thanks to the majority of all the webmasters that use this data without removing the link in the html code below. Very respectfully 73 de Paul N0NBH.



  
TYPE PANEL HTML CODE  
No Band
Condition
Calculations
Large Vertical
Selectable 304A
19 Selectable
Solar Images
Black Only
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarpic.php"></a>
</center>
  
HF & VHF
Band
Condition
Calculations
Large Vertical
Selectable 304A
EME Deg
Selectable MUF
Black Only
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarvhf.php"></a>
</center>
  
No Band
Condition
Calculations
Small Vertical
Selectable 304A
Multi-Color
& Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solar.php"></a>
</center>
  
No Band
Condition
Calculations
Small Vertical
Selectable 304A
Multi-Color
& Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarsmall.php"></a>
</center>
  
Only Band
Condition
Calculations
Small Vertical
Multi-Color
& Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarbc.php"></a>
</center>
  
Band 
Condition
Calculations
Small Vertical
Selectable 304A
Multi-Color
& Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solar100sc.php"></a>
</center>
  
Band 
Condition
Calculations
Large Vertical
Selectable 304A
Multi-Color
& Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solar2.php"></a>
</center>
  
No Band
Condition
Calculations
Horizontal
Selectable 304A
19 Selectable
Solar Images
Black Only
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarpich.php"></a>
</center>
  
Band
Condition
Calculations
Selectable
Europe K-Ind
tromso &
dombas
Selectable 304A
19 Selectable
Solar Images
Black Only
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solar101pic.php"></a>
</center>
  
HF & VHF
Selectable
Europe K-Ind
tromso &
dombas
Selectable 304A
Band 
Condition
Calculations
EME Deg
Selectable MUF
Horizontal
Black Only
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solar101vhf.php"></a>
</center>
  
Band
Condition
Calculations
Selectable
Europe K-Ind
tromso &
dombas
Selectable 304A
Multi-Color
& Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solar101sc.php"></a>
</center>
  
No Band
Condition
Calculations
Horizontal
Selectable 304A
19 Selectable
Solar Images
Black Only
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarsun.php"></a>
</center>
  
No Band
Condition
Calculations
Horizontal
304A @ EVE only
Solar Flux
Sunspot No.
Graph
Last 30 days
Black Only
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solargraph.php"></a>
</center>
  
No Band
Condition
Calculations
Horizontal
171A & 304A
@ EVE only
Solar Flux
Sunspot No.
11 MUF
readings
Graph
Last 30 days
Black Only
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/marston.php"></a>
</center>
  
No Band
Condition
Calculations
Horizontal
Selectable 304A
Current World
Sunlight Map
Solar Flux
Sunspot No.
11 MUF
readings
Black Only
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarmuf.php"></a>
</center>
  
No Band
Condition
Calculations
Selectable 304A
Current World
Sunlight Map
No Color
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarmap.php"></a>
</center>
  
No Band
Condition
Calculations
Selectable 304A
Current World
Sunlight Globe
No Color
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarglobe.php"></a>
</center>
  
No Band
Condition
Calculations
Selectable 304A
Current World
Moon View
of Globe
EME Deg
No Color
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/moonglobe.php"></a>
</center>
  

No Band
Condition
Calculations
Selectable Image
Selectable 304A
Current Solar
System View
No Color
No Transparent <center>
<a href="http://www.hamqsl.com/solar.html" title="Click to add Solar-Terrestrial Data to your website!"><img src="http://www.hamqsl.com/solarsystem.php"></a>
</center>
  
  




Add Solar-Terrestrial Data to your Windows XP Desktop

This one is mine, and requires google desktop. Two banners are available, Solar/HF Propagation Data with and without the K/A Index/SFI explainations. Refer to the HAMQSL FAQ Page for software download locations and complete instructions. 

Add Solar-Terrestrial Data to your Windows Vista/7 Desktop

Updated K7MHI gadget Version 1.5.1.1 for Windows Vista and W7. Click on this link and follow the download instructions. Make sure you UNINSTALL V 1.5.1.0 or you will still end up in the banned IP file due to excessive refreshes. 
   
Special thanks to Rob (AB1NJ) for making the small data only N0NBH gadget for Windows Vista and W7. Click on this link and follow the download instructions. 
   


Add Solar-Terrestrial Data to your Windows Vista Desktop

This one is also mine, in the same two banners as for XP. Refer to the HAMQSL FAQ Page for software download locations and complete instructions. 

Add Solar-Terrestrial Data to your Macintosh Desktop

Special thanks to Jan Lategahn (DO5LJ) for making the N0NBH gadget (the horizontal one with solar data, HF conditions, and solar image) that works with Mac OS. Click on this link and follow the download instructions. 
   


Add Solar-Terrestrial Data to your Windows Phone 7 (WP7)

Special thanks to Tom (KE7WTM) for making a HF-Propagation gadget for windows phone 7 (WP7). Contains all the data that the big N0NBH Gadgets have. Tom is using the same exact data I am using for the stickers and gadgets, so it updates every hour as well. Click on this link and follow the download instructions. 
   


Add Solar-Terrestrial Data to your iPhone, iPod, or Android 

Special thanks to Paul Picazo (KI6KIK) for making a couple of applications that will run on your iPhone or iPod.
   
The iPhone app is available at the following link http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=327730462

The Android (Google Phone) app is available at the following link (thanks to Mathijs for the updated link) http://www.appbrain.com/app/com.smerty.ham

The links above are used just like a normal hyperlink for iPhone / iPod touch users on their desktops to find the application.

Paul is using the same exact data I am using for the stickers and gadgets, so it updates every hour as well.

Partial screenshot is shown at right, for both the iphone and google phone applications.



Add Solar-Terrestrial Data as a WordPress Plugin

Special thanks to Tom (NS6T) for making the N0NBH gadgets as a WordPress Plugin. Widgets are configurable, allowing the site administer to select which banner to display. Works on WordPress 2.9.2 and should work on previous 2.x versions as well. Click on this link and follow the download instructions. 

Add Solar-Terrestrial Data as a Joomla CMS

Special thanks to Miro (PA4RM) for making any of the solar panels available as a Joomla CMS extension (becoming very popular). To download the Joomla Solar Panel extension, click on the this link and follow the download instructions. 

Add Solar-Terrestrial Data to your BlackBerry

To place on the main page of your BlackBerry, refer to the HAMQSL FAQ Page for software download locations and complete instructions. 

Solar-Terrestrial Data XML or RSS Feeds

I recognize that a lot of you would like to create your own solar terestrial related web information. So, to make it easier, I am offering the data in XML and RSS format. Please be aware, these feeds will last as long as I do not hear grief from my ISP provider. If I do they are gone!! So please only select to update every hour - that is the update period for the flux parameters (rest are 3-hour updates). Credit to HAMQSL.com would be appreciated. 
Click to subscribe to an XML feed of the current Solar-Terrestrial Data 
Click to subscribe to an RSS feed of the current Solar-Terrestrial Data 




  
  


   


Page Visits since 01 Jan 2012: 520,792


   



73 all, de Paul N0NBH
 24 Feb 2012


This site is © Copyright Paul L Herrman 2004-2012, All Rights Reserved.
Free web templates 
Links:
http://www.swpc.noaa.gov/radio/
http://sohowww.nascom.nasa.gov/
http://www.dxinfocentre.com/tropo.html
http://www.ae4rv.com/tn/propflash.htm
http://www.athensarc.org/nvis.asp
http://ecjones.org/propag.html
http://www.smeter.net/propagation/propagation.php
Propagation of Waves
The process of communication involves the transmission of information from one location to another. As we have seen, modulation is used to encode the information onto carrier waves, and may involve analog or digital methods. It is only the characteristics of the carrier wave which determine how the signal will propagate over any significant distance. This chapter describes the different ways that electromagnetic waves propagate.

Basics:
  An electromagnetic wave is created by a local disturbance in the electric and magnetic 
fields. From its origin, the wave will propagate outwards  in all directions. If the medium in 
which it is propagating (air for example) is the same everywhere, the wave will spread out 
uniformily in all directions.



Far from its origin, it will have spread out enough that it will appear have the same 
amplitude everywhere on the plane perpendicular to its direction of travel 
(in the near vicinity of the observer). This type of wave is called a plane wave. 
A plane wave is an idealization that allows one to think of the entire wave traveling 
in a single direction, instead of spreading out in all directions. 
Weak Signal Communication Software:
Electromagnetic waves propagate at the speed of light in a vacuum. In other mediums, like air or glass, the speed of propagation is slower. If the speed of light in a vacuum is given the symbol c0, and the speed in some a medium is c, we can define the index of refraction, n as:  n=c0/c
--------------------------------------------------------------------------------
​Reflection
  When a plane wave encounters a change in medium, some or all of it may propagate
into the new medium or be reflected from it. The part that enters the new medium is
called the transmitted portion and the other the reflected portion. The part which
is reflected has a very simple rule governing its behavior. Make the following
construction:

                                                                                                        
Double click here to add text.
Angle of Incidence = the angle between the direction of propagation and a line perpendicular to the boundary, on the same side of the surface. Angle of Reflection = the angle between the direction of propagation of the reflected wave and a line perpendicular to the boundary, also on the same side of the surface. Then the rule for reflection is simply stated as:  The angle of reflection = The angle of incidence

If the incident medium has a lower index of refraction then the reflected wave has a 1800 phase shift upon reflection. Conversely, if the incident medium has a larger index of refraction the reflected wave has no phase shift. 
http://ac6v.com/propagation.htm
When you look into a pool, the light from the bottom is refracted away from the perpendicular, because the index of refraction in air is less than in water. To the observer at the side of the pool, the light appears to come from a shallower depth.
For the same reason, when you look at objects underwater through a mask, they will appear to be larger than they really are. The light from the object is spread outwards at the water-air interface of your mask. To you it will appear the object is closer
or larger.

Interference
All electromagnetic waves can be superimposed upon each other without limit. The electric and magnetic fields simply add at each point. If two waves with the same frequency are combined there will a be a constant interference pattern caused by their superposition. Interference can either be constructive, meaning the strength increases as result, or destructive where the strength is reduced. The amount of interference depends of the phase difference at a particular point. It can be shown that constructive interference occurs for phase differences of 0-1200, and 240-3600. Thus destructive interference occurs from 120-2400. For two identical waves, no phase shift results in total constructive interference, where the strength is maximum and 1800 phase shift will create total destructive interference (no signal at all).
The phase shift that causes the interference can occur either due to a difference in path length, Dx, or a difference in the arrival time, Dt. The amount of phase shift, Df, can be computed for these two cases by: Example: Omega is a radio navigation system that used the phase difference in the same signal from two fixed transmitters to determine a line-of-position. The same phase difference corresponded to multiple lines of position separated by a distance equivalent to 3600 of phase shift. Since the frequency was 10.2 kHz, the wavelength corresponding to 3600 phase shift was 16 miles, which was the lane width on an Omega overprinted chart. Loran-C also has a phase-difference mode with a lane width of only 3000 m since it operates at 100 kHz. 

Diffraction
  Recall that the idealized plane wave is actually infinite in extent. If this wave passes through an opening, called an aperture, it will diffract, or spread out,
from the opening. The degree to which the cropped wave will spread out depends on the size of the aperture relative to the wavelength. In the extreme case where the aperture is very large compared to the wavelength, the wave will see no effect and will not diffract at all. At the other extreme, if the opening is very small, the wave will behave as if it were at its origin and spread out uniformly in all directions from the aperture. In between, there will be some degree of diffraction.

Refraction
When the wave enters the new medium, the speed of propagation will change. In order to match the incident and transmitted wave at the boundary, the transmitted wave will change its direction of propagation. For example, if the new medium has
a higher index of refraction, which means the speed of propagation is lower, the wavelength will become shorter (frequency must stay the same because of the boundary conditions). For the transmitted wave to match the incident wave at the boundary,
the direction of propagation of the transmitted wave must be closer to perpendicular. The relationship between the angles and indices of refraction is given by Snell's Law:
​When the direction of propagation changes, the wave is said to refract. It is most useful to know in which direction the wave will refract, not necessarily by how much.
The transmitted wave will bend more towards the perpendicular when entering a medium with higher index of refraction (slower speed of propagation). Example: Why a pool is deeper than it looks.  
Beacon Links:
Antenna Design Links:
WinLink 2000:
http://www.winlink.org/WINMOR
http://www.ac6v.com/software.htm


http://www.hamradiosecrets.com/antenna-design-software.html
http://ac6v.com/antsoftware.htm
http://ku4ay.net/antenna.html
http://physics.princeton.edu/pulsar/K1JT
http://www.taborsoft.com/btw/
http://www.ncdxf.org/beacon/monitors.html
http://www/hamqsl.com/solar.html
Ham Radio Deluxe DM780
What is a Magnetosphere?
​As shown in the picture below, a planetary magnetosphere is the region where the planetary magnetic field dominates over the solar wind. This region is defined at the boundary of where the solar wind pressure is balanced with the planetary magnetic field and internal plasma pressure.