HFUnderground.com Propagation Data and Tools RadioHobbyist.org Blog. For SSB look for 80%+ reliability Please select a month: January. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Communications, and Monitoring Times magazines. HF Propagation Overview; Acknowledgement. Forecast for the next 24 hours: Space weather for the next 24 hours is predicted to be minor. Some are well known while others are not. 21 Narch 2021 18:20 UTC ----- C=CONTINUOUS I=INTERMITTENT #=CONFIRMED AS ACTIVE OR HEARD (*)=NCDXF/IARU BCN [SEE END OF LIST] IARU Region 2 Beacons un-reported past year w/no Email contact will be determined QRT Beacons listed as un-coordinated should contact their respective IARU HF Beacon Coordinator.---- … We do not encourage any radio operations contrary to regulations. We saw one day (Monday) with no sunspots during this week, so average daily sunspot numbers declined slightly from 19.6 to 18.9. 11 Meter Radio Propagation. Understanding 10 (11) Meter Sporadic-E (Understanding ES or “short skip”) Understanding Solar Indices by Ian Poole, G3YWX  Date and Time 28 th of March 2021 utc Solar X-rays and Geomagnetic Field . For the discussion on the 11 Meter Band Propagation **** 25.000.00Mhz - 28.000.00Mhz - All Mode **** "Conditions" forecast and a word or two in the right column. At times propagation conditions on 10 meters will be Good, via the less predictable Sporadic E (Es) and trans-equatorial (TE) propagation modes which involve the F2/3 layer. You can help generate this page ! July. April. October. May. Short-Path Propagation from UK By Steve G0KYA Based on CW+100W to a dipole at 35ft. The main category is Propagation Bullettins and charts that is about Propagation forecast. Conditions aren't great at this point in the solar cycle, but this can be a fun single-band operating activity. there was significant 10 meter DX propagation too. The maximum usable frequency (MUF) is the highest frequency that, with a probability of 50% of the time, can be used for radio communication between two points at a specified distance (but not necessary in all directions) via refraction by the ionosphere. Special saving program. Paths are smoothed to create a color-coded footprint indicating the distance VHF signals are likely to be … «Conditions» forecast and a word or two in the right column. ZCZC AP10 QST de W1AW Propagation Forecast Bulletin 10 ARLP010 From Tad Cook, K7RA Seattle, WA March 5, 2021 To all radio amateurs. The antenna is a vertical wire dipole, suspended approximately 16 meters from the ground. The Propagation Modes Behind 6 Meter Ham Band Activity. SB PROP ARL ARLP010 ARLP010 Propagation de K7RA. Sources of Propagation Forecast • Bulletins from the ARRL. HF Propagation Forecast Scale-Excellent S9+1 Or Better Good S7-S9 Fair S4-S6 Poor S1-S3 None S0 FORECASTED NORTHERN HEMISPHERE GREAT CIRCLE VIA LONG PATH-80, 60 meters Views expressed in this Amateur/Ham Radio News update are those of the reporters … To request a LICENCE, please contact … TEN METER PROPAGATION BEACONS. February. The map shows activity from the past hour. Anyone can use Voice of America Coverage Analysis Program (VOACAP) for HF Propagation online to compute the best frequency and time to establish an HF connection. William Hepburn's VHF/UHF Tropospheric Ducting Forecast: ON4AA On-Line HF Propagation Prediction Learn about your current local HF propagation conditions and obtain a forecast in a snap! For the discussion on the 11 Meter Band Propagation **** 25.000.00Mhz - 28.000.00Mhz - All Mode **** June. Sunspots and a number beside it. Forecasts. Updated at 40 minutes past the hour; Click on the maps to zoom and reload. It's for spotting DX stations, not for chatting! The 40-meter band worked well when I was closer, but now it seems that the 20-meter band is more reliable given the position change. Instead, what measurements of the neutral atmosphere that do exist are for lower altitudes: ground-based observations of temperature, pressure and winds, or else satellite views of weather systems from cloud-cover and infrared data. Here’s the latest propagation forecast from Tad Cook (K7RA). Geomagnetic storms reaching the G1 level are likely. 27-Day Outlook of 10.7 cm Radio Flux and Geomagnetic Indices; 3-Day Forecast; 3-Day Geomagnetic Forecast; Forecast Discussion; Predicted Sunspot Numbers and Radio Flux ; Report and Forecast of Solar and Geophysical Activity; Solar Cycle Progression; Space Weather Advisory Outlook; USAF 45-Day Ap and F10.7cm Flux Forecast; Weekly Highlights and 27-Day Forecast; Reports. A few operational tips: Enlarging the screen waterfall display offers a much easier receiver to tune and monitor. HF propagation prediction is a statistical science. We will name them and briefly describe them in a moment. VHF Propagation Map This map shows real-time radio propagation from stations operated near 144 MHz. December. Tropospheric bending extends the range of radio & TV stations well beyond their normal limit and thus increases interference amongst stations as well. 1,640 likes. Make sure your locator is OK in the callbook; Do not chat in the DX-Cluster. _ … Propfire HF Propagation Stats for Firefox Propfire is a propagation utility for the Firefox webbrowser. It uses data gathered by Automatic Packet Reporting System-Internet Service (APRS-IS) from packet stations in the amateur radio service. Solar Wind Data Provides solar wind velocity and energetic particle intensity Updated at: 0543Z on November 10, 2018. 2000 mi/3200 km will be GOOD on 80, 60, 40 and 30 meters, GOOD on 20, 17, 15 and GOOD on 12 and 10 meters. The radio propagation forecasting models require several input parameters that are needed to drive the forecast engine. This link is listed in our web site directory since Tuesday Dec 28 2010, and till today "160 m Propagation Prediction" has been followed for a total of 1023 times. It greatly improved 15 meter propagation during the CQWW CW DX Contest and there was significant 10 meter DX propagation too. For the real-time effective solar sunspot number (SSN e): The author wishes to thank James Secan, Senior Research Scientist, Retired, of NorthWest Research Associates, Inc (NWRA) for his continuing efforts to keep the Space Weather Indices Summary 1 server online. HF Propagation Forecast Scale-Excellent S9+1 Or Better Good S7-S9 Fair S4-S6 Poor S1-S3 None S0 GLOBAL 50-54 MC (6 Meters) PROPAGATION MODES EXPECTED FORECAST-F2- None Sporadic E (Es)- Yes Aurora E High Latitude- Yes Aurora E Mid Latitude- No Troposphere Ducting … Quite often, many of these parameters are not as accurate as what one might like them to be. Your knowledge of the various 6 meter propagation modes will help you anticipate favorable propagation conditions. Daily sunspot number varied wildly from 40 to 94 during this period mostly because there were also three smaller active regions at during the period when 12786 was by far the most significant contributor to SFI greater than 100. generico levitra on line: generico cialis on line: purchase levitra online https://www.dxzone.com/catalog/Propagation/Propagation_Forecast Do this easily by simply increasing the web page size to fill your monitor screen by using the zoom feature offered by your browser. 80 Meter Dipole Install via Drone Installing my 80 Meter Dipole with my DJI Mavic was probably not the smartest thing I’ve ever done but h... ALEXLOOP HAMPACK SYSTEM Moreover, none of the common forecast models account for short-term, spurious, or anomalous and secondary effects of mother nature that may affect the propagation conditions. How to use the Tropospheric Ducting Forecast November. August. References . Geomagnetic activity forecast for the period January 4-30, 2019 from F.K. X-Ray Flux; A Index; K Index; Ionosphere ; Aurora; Longwave; foF2 and T Index; Skip Zone; Solar Cycle; Solar Map; Geospace. The color (frequency) at your location is the optimum frequency for F2 layer NVIS communication. • Listen to WWV at 18 minutes after each hours on 2.5, 5, 10, 15 and 20 MHz. The rest of information is useless and it doesn't interest anybody. The ideas dealing with meteorological aspects of 160-meter propagation cannot be related to many observations at the altitudes of interest. About 160 m Propagation Prediction The resource is currently listed in dxzone.com in a single category. • 160, 80, 40 and 30 Meters are relatively insensitive to solar flux, but rely on low steady A and K indexes. Refund Policy. Propagation Data; Real Time SWBC Schedule; RadioHobbyist.org Blog; Europirate Chat; Login; Register; HFU HF Underground » Loggings » 10/11 meters (Moderators: thechoat, R4002) We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. Janda, OK1HH of the Czech Propagation Interested Group compiling this geomagnetic activity weekly forecast since 1978. High frequency and VHF radio propagation data, solar and geomagnetic real-time and historic data, sunspot activity reports, as well as forecasts. VHF (50 MHz and 144 MHz) radio signals can travel way beyond the horizon thanks to various propagation modes. 6-Day Forecast of VHF, UHF & Microwave Radio & TV Anomalous Propagation & Interference ... Commercial or government use of any maps (forecast or archived) or the information they contain, whether for internal operational use or for use in the development of products or services, without obtaining licensed consent from the owner, is strictly prohibited. 1. Now you can also receive customized propagation alerts by E-Mail!! NorthWest Research Associates, Inc (NWRA). _ signs means stable or no change. These are a … Trying to forecast the connection of a P2P contact becomes more difficult. AtmosFEAR Regular (non space) Weather discussions Current UTC time and date: 1649 30-03-2021 . Solar Weather, Sunspot activity, Geomagnetic, Aurora, Ionospheric … September. Daily sunspot number varied wildly from 40 to 94 during this period mostly because there were also three smaller active regions at during the period when 12786 was by far the most significant contributor to SFI greater than 100. The areas noted in the forecast have the necessary atmospheric conditions to produce tropospheric bending of VHF, UHF and/or microwave radio waves. 10 METER BEACON LIST. HF Propagation Now: ALE Geo Position Report: ALE Interoperable HF Comm: NVIS Optimum HF Frequencies (foF2): For communications within 300 kilometers - To use the map, locate the map for your location and click on it. 5 talking about this. K Index and a number beside it. Note!!! Propagation Broadcasts and Forecasts Demystified (PDF) RSGB Propagation Studies Committee (Lots of info on different propagation modes.) • 10 Meters is the most sensitive to changing conditions. Propagation Forecast Bulletin 51 ARLP051 From Tad Cook, K7RA Seattle, WA December 10, 2004 To all radio amateurs SB PROP ARL ARLP051 ARLP051 Propagation de K7RA This weekend is the ARRL 10-Meter Contest. You will notice first off, it states «HF Propagation»: (meaning 160 thru 10 meters) Next the date and UTC time, then: Solar Flux and a number beside it. March. It displays current HF propagation data in your status bar. X-Ray Flux These graphs show the solar x-ray flux levels for the past three days, as well as … Dashboard. ARLP010 Propagation de K7RA. Notes: Propagation maps created with HamCAP and based on the predicted smooth sunspot number for the month and CW/100w to a dipole at 35ft. Solar X-rays Solar x-rays. K Index and a number beside it. Send formated DX spots indicating clearly both locators and the type or propagation! You will notice first off, it states "HF Propagation": (meaning 160 thru 10 meters) Next the date and UTC time, then: Solar Flux and a number beside it. Sunspots and a number beside it.