Solar X-rays: Solar Xray Status
Geomagnetic Field: Geomagnetic Field Status

dhs threat level

NOAA Dailiy Reports

Mon, 04/21/2014 - 11:00pm
Report of solar & geophysical activity

WM7D Solar Resources

Mon, 04/21/2014 - 11:00pm
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

Last 30 Days Solar Data

Mon, 04/21/2014 - 11:00pm
Display a table of last 30 days sunspots reports. Prepared by the U.S. Dept. of Commerce, NOAA, Space Environment Center

Understanding Solar Indices

Sun, 04/20/2014 - 11:00pm
By Ken Larson KJ6RZ, a complete guide to understanding soloar indices and values.

N0NBH Solar Terrestrial Data

Sun, 04/20/2014 - 11:00pm
Add Solar-Terrestrial data to your website, by adding a simple html code to your pages by Paul L Herrman

Troposcatter propagation

Sat, 04/19/2014 - 11:00pm
Introduction to troposcatter or tropospheric scatter propagation using the troposphere

IonoProbe

Sat, 04/19/2014 - 11:00pm
Monitors the space weather parameters essential for HF radio, including SSN/SFI, Ap/Kp, X-ray/Proton flux, and Auroral activity. IonoProbe downloads near-real time satellite and ground station data, stores information for future use and displays it in a user-friendly way.

Solar Region Data - SunSpots

Sat, 04/19/2014 - 11:00pm
Solar Region Data Current Regions with Sunspots Summary, an useful tool for predictions

RK3AF Aurora pages

Fri, 04/18/2014 - 11:00pm
VHF, ms, aurora, es, photos, audio, link, soft and more.

Waveguide basics tutorial

Fri, 04/18/2014 - 11:00pm
Summary, tutorial about the basics of what is a waveguide and the basic waveguide theory.

Geomagnetic and Solar Indices

Fri, 04/18/2014 - 11:00pm
NOAA / Space Weather Prediction Center, Geomagnetic K-indices and Running A-indices, Local Noon Solar Radio Flux, Daily Solar Indices with SSN

Operating NVIS

Fri, 04/18/2014 - 11:00pm
Near Vertical Incidence Sky Wave (NVIS) Propagation, PPT presentation by Marc C. Tarplee, Ph.D. N4UFP

Radiowave Propagation Center

Thu, 04/17/2014 - 11:00pm
High frequecy and VHF radio propagation data, solar and geomagnetic real-time and historic data, sunspot activity reports, as well as forecasts. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Communications, and Monitoring Times magazines.

G7IZU Radio Reflection Detection Page

Thu, 04/17/2014 - 11:00pm
Meteor Shower, Aurora, Sporadic-E and Solar Flares detected using Radio Signal Reflection, by Andy Smith, G7IZU. Live waterfall displays from three receivers, live Es propagation maps.

NVIS Area

Thu, 04/17/2014 - 11:00pm
NVIS description at tactical-link.com

Understanding propagation numbers

Thu, 04/17/2014 - 11:00pm
Quick reference table on understanding A K SFI indexes and how can be translated in usable frequency opportunities

Solar Terrestrial Activity Report

Thu, 04/17/2014 - 11:00pm
Solar data with current solar status, forecast and propagation report

Natural VLF Radio

Wed, 04/16/2014 - 11:00pm
Sounds of Space Weather by S. McGreevy, N6NKS

Propagation Prediction Tool

Wed, 04/16/2014 - 11:00pm
This is a propagation prediction program tailored to the serious contester

Radio-Communications Theory

Wed, 04/16/2014 - 11:00pm