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Содержание

 

• Введение в прохождение радиоволн и описание терминов
• Информация о прохождении в сети Интернет
• Радиомаяки
• Авроральное прохождение
• Mетеорные потоки
• Прохождение на крайне низких частотах
• Прохождение на КВ
• Прохождение на УКВ
• Прохождение на СВЧ-частотах
• Текущие ионограммы
• Солнечно-геофизическая информация
  • Магнитосфера и магнитограммы
• Прогноз прохождения
• Компьютерные программы для расчета прохождения

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Введение в прохождение радиоволн и описание терминов

• Введение в ионосферу от National Geophysical Data Center
• Основные факты о космической погоде - Мичиганский Университет
• For a comprehensive listing and explanation of many of the terms employed in relation to propagation see Glossary of Solar-Terrestrial Terms from Boulder from Hiraiso
• A Beginner's Guide to the Earth's Magnetosphere from the American Geophysical Union
• The Sun - introduction to the sun with sunspot record 1874-2000
• Ionograms Tutorial from NOAA
• Space physics textbook - for basic but more detailed introduction/explanations of solar-geophysical phenomena including aurora and magnetic activity with some fine illustrations Sunspots and Solar Cycle excellent basic introduction sponsored by NASA
• Educational Material from the IPS explaining The Sun, Solar Cycle, Solar Minimum and the Next Cycle, the Earth's Magnetic Field and the Effects of the Solar Cycle
• E-Layer discussion group on HF propagation
• Aurora: The Basics - Briefly - explanation of the visual aurora but mostly relevant to radio aurora too

  Auroras 2000 - excellent site with auroral images, news, data, explanations, FAQs

• What is the Aurora Doing Today? (current image from NASA)
• Radio aurora - very brief introduction with recordings of aurora from N1BUG
• Auroral sporadic-E basic explanation from N1BUG
• Sporadic-E introduction from N1BUG
• FAI propagation basic explanation from N1BUG
• FAI Propagation - explanation of the characteristics and geometry of Field Aligned Irregularity propagation with map of contacts and bibliography by IC8FAX
• The Ionosphere at VHF from EA6VQ
• Meteor Burst Communication
• Meteor Scatter - brief introduction by N1BUG
• Getting Started on EME from N1BUG
• Ionoscatter propagation from N1BUG
• Troposcatter propagation by OZ1RH
• Troposcatter inside and out by OZ1RH
• Space Weather primer - brief explanation of the relationship between the sun and earth with excellent pictures and diagrams from Rice University.
• A basic introductory site on weather-related VHF/UHF propagation is provided by BBC Engineering . Topics covered include the atmosphere, troposphere, VHF/UHF Propagation and temperature inversions
• Ionospheric Scintillation Prediction from North-West Research Associates
• Tutorial in Ionospheric Scintillation from North-West Research Associates
• Whistler Mode Propagation (VLF) needs .wav

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Информация о прохождении в сети Интернет

• DX Central for uthe latest DX spots as they come in
• Worldwide Web Cluster for the latest solar-geophysical indices and last 100 'spots' on each amateur band
• Propagation Alerts
• Propagation - excellent site offers current solar indices, 24-hour and 3-day forecasts, near-realtime map/plots of global MUFs, GOES X-ray flux, auroral activity, solar images and the current greyline
• Radio Users Propagation Page from SEL/NOAA
• Solar-Terrestrial Activity Page - another excellent site with daily plots of Planetary A, Flux and SEC Sunspot numbers, a commentary on developing solar phenomena and how these may affect radio propagation
• SpaceWeather.com
• Space Weather from Rice University - 'red', 'amber' or 'green' assessment of conditions affecting propagation: Latest Kp, WIND data and USAF forecast plus 'dials' showing latest solar wind density, speed and pressure, the interplanetary field magnitude, polar angle and azimuth and magnetosphere response. In short, the current situation at a glance
• Alerts and Warnings last 24 hours from the Space Environment Center
• Propagation - latest SSN, flux, A, K figures, near-real-time fof2 map for USA and links to auroral activity, alerts, current and medium-range forecasts
• Hourly fof2 and MUF3000 maps for Europe
• DX Zone Propagation Page
• World Near-Real-Time MUF Map
• Online Propagation Forecasting from DERA with short-term forecasts for sub-auroral NW Europe, updated hourly
• near-real time Global MUF map
• Global f2 critical frequency map
• Global E-layer critical frequency map
• HF Propagation Conditions in visual form from IPS Australia
• Today's Space Weather from NOAA See also this site Includes GOES X-ray flux data in near-real-time
• Low- and Mid-Latitude Auroral Alerts (24-hour delay)
• Real Time Auroral Monitor from N1BUG

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Радиомаяки

• G3USF's Worldwide HF beacon list - the most comprehensive and up-to-date listing
• 28 MHz beacon list from KC4DPC
• G3USF's Worldwide 50MHz beacon list
• IARU Region 1 VHF/UHF/Microwave Beacon List - from G3UUT
• GJ4ICD's 50 MHz beacon list
• UK Six Metre Group 50MHz beacon audio listing Requires Javascript, frames and audio board
• 50 MHz beacons listed by continent from OZ6OM
• G4TMV's Beacon Page - with lists and contact addresses
• NCDXF/IBP HF beacon network information
  • Articles on the NCDXF HF beacon network
  • VK6RBP
  • VE8AT
  • W6WX
  • 4S7B
  • BeaconClock program for Windows 95 to assist checking NCDXF beacons. Indicates the next five beacons scheduled to transmit on your selected band, with callsigns, SP and LP beam headings and distance in km. Updated every 10secs. From S R Huntting Inc
  • Active Beacon Wizard displays the currently active NCDXF beacon on a topographic map along with the solar terminator
  • BeaconSee program - monitors/displays graphically reception of the NCDXF beacons
  • DC7BJ NCDXF Beacon Logging Program

  Other beacons

  • Amateur Beacons
  • Australian Beacons
  • Les balises francaises
  • BV2DP
  • DK0WCY
  • KB3BOE
  • KF4MS
  • KK4XO e-mail
  • K5AB e-mail
  • KC8NSM e-mail
  • K9OHI e-mail
  • ITU 'beacons' LN2A and VL8IPS
  • N7GSU e-mail with N7GSU/BCN in subject line
  • N7LT
  • OK0EN (80m)
  • PT7BCN e-mail
  • UR4LL e-mail
  • VA3SBB e-mail
  • VE6EMU (6, 2m)
  • VK3RMH e-mail - failing which try
  • W1VHF e-mail
  • WN2A
  • W3HH e-mail
  • WJ5O e-mail
  • WA8YWO .
  • WA7LNW e-mail
  • XE1SRF e-mail
• European VHF,UHF,SHF beacons
• VHF/UHF beacons in Northern Europe from OZ6OM
• Les balises francaises/French beacons
• Norwegian beacons from LA0BY
• 144/432MHz beacons (LA0BY)
• European Microwave Beacons or see mirror site
• North American Beacons 144MHz and above from WZ1V
• North American Beacons 50-2400MHz

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Aврора

• CANOPUS: The auroral oval in near real time - excellent display
• Auroral Opening Maps from WM7D
• IPS auroral alert e-mail service, flags auroras at lower-than-usual latitudes. To subscribe either click 'mail-lists' at the IPS site or e-mail with message subscribe rwc-aurora-alert your_email_address
• Aurora in near real time
• The aurora in near-real time from Alaska (local darkness hours)
• Some fine auroral images from Sodankyla
• Aurora Borealis gallery - pictures from the Scottish Highlands
• Quick-Time movie of the aurora (Requires video capability and file is >6Mb) from Sodankyla
• ISPEC Online Material on the Aurora
• Auroral information with some good stills
• Aurora Monitor from N1BUG
• Auroral images
• Aurora forecast maps from Fairbanks Geophysical Institute. Can also be found here. The forecasts are for the Fairbanks area. This site also holds auroral animations and video
• Close-Up of the Aurora from NASA
• Elmendorf radar auroral returns on 49640kHz
• The Auroral Page includes data from many sites in a variety of forms
• Auroral Activity Estimates from NOAA/TIROS for the Northern Hemisphere and Southern Hemisphere shows current position and extent of the auroral oval
• DK3XT/AB7IY aurora page
• Auroral Activity Estimates from SEC
• Very Latest SOHO satellite Webcam images OR here updated every 12 minutes
• High Frequency Active Auroral Project (Alaska)
• Mark Haun's Auroral Monitor - build your own warning system
• Aurora Forecast - from University of Alaska, updated 1500 local time
• BAA Solar Section - Radio Noise

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Метеорные потоки

Radio Meteor Data around 50MHz from Japan - some FAI too

• Automatic Radio Meteor Observations from University of Ghent
• Meteors and Meteor Scatter Links
• History of the Perseids from the American Meteor Society
• Meteor Monitoring by Computer OR here
• R_Meteor program for automatically monitoring returns from meteor trail
• OH5IY's Meteorscatter page including Compact MS-Soft program for automatic MS recording
• Meteor Scatter Observations with VHF radio and computer
• International Meteor Organization - provides information on meteor observing techniques, reports results of surveys and lists meteor shower dates
• DK3XT/AB7IY Meteor Scatter pages and Meteor Shower Table
• North American HSMS Web

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Прохождение на крайне низких частотах

• Whistler Mode Propagation
• 135.0-137.7 LF Band from VERON
• RSGB LF Forum (1998)
• RSGB 136 and 73KHz
• LF/VLF Bibliography
• VLF Group (Stanford)

Прохождение на КВ

• La propagation HF in French
• 160m propagation
• Near-Realtime Ionospheric Maps for London... Oslo.. Paris... Auckland ... Perth... Sydney... Hobart...

Прохождение на УКВ

• Tropospheric Ducting : experimental continental maps of the probability of ducting
• Temperature Inversion Data - balloon data for Europe collected at 00 and 12h UTC. Click 'sonadatages europeus'. Also has met prediction model links
• Tropospheric Propagation at 50 MHz - Report by G2AHU, G4IFX and G2BDV on a propagation experiment
• Non-ducting tropospheric propagation from M1BWR
• VHF/UHF operators wishing to plot transmission path possibilities (terrestrial or satellite) may find this Radio Frequency Propagation Calculator (Version 1.03) useful (file rfp103.zip)

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Прохождение на СВЧ-частотах

• World Above 1000MHz (G3PHO)
• N4YWK's Microwave Page
• Propagation Above 50GHz from RCRU, Rutherford-Appleton Laboratory (broken link)
• VHF/UHF Propagation Primer for the Digital Experimenter from VE3JF
• Statistical Propagation Modelling for Cellular Radio (1.8GHz) - tutorial in statistical propagation modelling techniques
• A Study of Indoor Radio Propagation
• Measurement, Analysis and Modelling of Radiowave Propagation at 93GHz

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Ионограммы

• Chilton and (UK) Port Stanley (Falklands)
• Latest Digisondes from Millstone Hill (MA), Rome, Chilton, Tromso, Hamscom, Sondrestron, Okinawa
• Darwin, Townsville, Canberra, Sydney, Hobart, Brisbane, Christchurch, Mundaring
• Equivalent Oblique Incidence Ionograms for Darwin, Townsville, Sydney, Hobart
• Tromso
• Ionosonde plots from Haystack (US) updated every fifteen minutes

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Текущая солнечная и геофизическая информация

• NOAA Space Environment Center
• Space Weather Today - University of Michigan with images of the current state of the sun and the aurora
• Latest WWV, Solar Flux and K figures from OH2AQ's DX Summit The most popular site in amateur radio with over 4,000 'hits' per day
• Solar Flux data from SEC
• Space Environment Center - vast quantities of information including a number of the sources listed separately below.
  • Latest Solar-Geophysical Links
  • SolarImages from SEC
  • A & K Indices - current and historical from SEC
  • Alerts and Warnings from SEC
  • GOES X-Ray data - current and historical from SEC
  • ACE Hourly readings from SEC
  • D-Region Absorption Predictions from SEC
  • Near-Realtime X-Ray Absorption Maps at 5,10,15,20,25,30MHz
• Solar-Terrestrial Activity by Jan Alvestad brings together daily information on solar indices (SSN, Flux, Ap, Kp, solar wind speeds) for the past two months. There are also plots of electron fluence from the WIND satellite, and of cycles 21, 22 and 23 and a graphical comparison of Cycles 21, 22, 23. Clear and well presented.
• Another excellent space weather site is presented by North West Research Associates In addition to links to many of the sites listed individually here it offers a number of plots for the previous and current Bartels rotation, including solar flux , SSN and the T Index from the IPS, daily Ap Index and Comparison of Sunspot Number and Solar Flux Indices

  There are also critical frequency (fof2) plots for the previous day in respect of a number of ionospheric stations: Bermuda, Wallops I., Townsville, Learmouth , Hobart . Camden, Goose Bay , Dyess AFB, Eglin AFB, Dixon AFB, Magadan, together with a worldwide daily fof2 plot There are also Auroral Boundary Indices (DMSP SSJ/4 Qe and Kpe Indices)

• fof2 data for above sites from SEC
• Daily USAF/NOAA Report on solar-geomagnetic activity and short-term forecast

For more detailed data including numerous time-series:

• Geomagnetic data from UK observatories, current and historical, from the British Geological Survey
• Solar Information from Mount Wilson Observatory includes magnetogram, dopplergram, intensitygram, 12-month plot of magnetic plage strength index
• Solar Activity Plotting Program WA4TTK offers this program (v3.01), which is said to update solar flux and sunspot number databases automatically when it scans new propagation bulletins.
• NASA Sunspot Information
• NASA Solar Data Analysis Center includes near realtime solar wind parameters
• Solar Index Data Centre (Brussels)
• Solar wind velocity data from SOHO for the last 48 hours, time-lag of around 30 minutes OR see SOHO data from NOAA
• ACE Realtime Solar Wind Data page
• SOHO/CELIAS/MTOF Proton Monitor Data
• NASA site with pictures - including video if you are so equipped - of Coronal Mass Ejection
• National Geophysical Data Center Archive for historical data
• USAF/NOAA hourly magnetograms and running K figures from a number of observatories, including Hartland in the UK.
• Solar, geophysical, critical frequency and auroral information in near-real-time from the University of Lethbridge including:
  • maximum height F2 layer map
  • Solar Zenith Angles link broken
• Data from The Institute of Propagation Studies in Australia Good site, well presented.
• Panix links to data from Boulder, Canada and Australia
• Belgian Institute for Space Aeronomy
• Solar Data from Mount Wilson Observatory
• Meudon Observatory includes Monthly Kp from Gottingen, monthly SIDC Data from Brussels, charts of 10cm solar flux for last 25 days with forecast for next three days
• DRAO (Canada) 10cm Solar Radio Noise Patrol includes solar flux records back to 1947
• Hiraiso (Japan) Solar-Terrestrial Research Center Information includes:
  • Near real-time geomagnetic plots
  • Radio spectrograph plots
  • Solar activity chart
  • geomagnetic activity chart - K figures for 18 sites
  • Geomagnetic Data Plots
• Sun in Soft X-Rays from the Yohkoh satellite (movie requiring at least 1.5Mb)
• DST (equatorial ring current) values - about one day in arrears
• Ionograms from Tromso
• World Data Centres Guide to Holdings

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Магнитосфера и магнитограммы

• World Data Centre C1 for Geomagnetism (Denmark)
• Ionosonde data, daily and monthly and Riometer data for Finnish stations and Spitzbergen
• Geomagnetic data from Sodankyla
• Geomagnetic Data from NGDC - data from GOES, DMSP, MAGSAT
• International Solar-Terrestrial Physics Program
• The Magnetosphere Yellow Pages Data Sources - everything you might want to know about the magnetosphere
• Magnetometer and Riometer Data from the University of Alaska
• Antarctic Magnetometer Project
• Magnetic declination - input latitude and longitude for current value of magnetic declination
• Ionospheric Scintillation Predictions from Northwest Research Associates
• Ionospheric Models
• Solar activity links via DK3XT/AB7IY OR here
• URSI Commission B (9 February)
• World Data Centers Home Page

• Images from the Solar & Heliospheric Observatory is available from NASA. SOHO is about 1 million miles from earth, on the sunward side, at the point where the earth's and sun's gravitational pull are equal. Striking images and simulations.

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Прогнозы прохождения радиоволн

• Weekly Propagation Forecast from G4FKH
• Alerts and Warnings from SEC/NOAA
• Current Propagations Predictions for the UK from G4FKH
• Shortwave Fadeout Coverage Predictions from IPS Australia
• Forecasts from IPS Australia medium range forecasts
• Daily USAF/NOAA HF Forecast, 27-day forecasts e-mail to with message Subscribe propagation forecast as from the Central USA, posted here monthly and archived since February 1988.
• HF Skywave Prediction Program (IONCAP)
• Free Propagation Prediction Software Explanation and code (314k)
• Shortwave Fadeout Coverage Predictions following solar flares

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Программы для расчета прохождения радиоволн

• ASAPS HF prediction software
• CAPMan HF Propagation & System Analysis 'Skywave analysis with a difference' from Kangaroo Tabor Software. Also Beacon Wizard and WinCap Wizard2
• MAC forecaster for MAC from Black Cat Systems
• Skywave Technologies - propagation prediction for amateurs, professionals and the military (28 October)
• ES-PROP in archive ESPROP14.LZH for analysis of sporadic-E propagation paths
• Java-based propagation prediction program
• VOACAP NB This is a large file that will take time to download. Do not attempt at busy times OR here
• Rohde & Schwarz HF Link Propagation Software Wizard
• MINIPROP
• Field Aligned Propagation (FAI/Aurora) in archive F-A101.LZH
• Field-Aligned Propagation Assessment Program
• HFx Propagation Prediction Tool - commercial site
• Propagation Wizard

 

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