Hamsphere QSL cards


Thursday, August 16, 2018


Le café glacé vietnamien, (du vietnamien : cà phê đá, signifiant littéralement café glace) est une boisson traditionnelle vietnamienne.Le cà phê đá est composé de café grossièrement moulu, préparé à l'aide d'un filtre en métal (phin cà phê). Une fois l'eau chaude versée dans le filtre, le café s'écoule lentement dans la tasse; son contenu est enfin transvasé dans un verre rempli de glaçons.  
La version la plus populaire du café glacé vietnamien est le cà phê sữa đá, un café glacé avec du Lait concentré sucré. Il convient de verser 2 à 3 cuillères à soupe de lait concentré (voire plus si on aime le café sucré) dans une tasse à café puis de placer filtre à café métallique, avec son contenu au-dessus, en laissant le café s'écouler lentement


« Une Vie de Recherche Hors Norme » avec Jean-Pierre Petit - NURÉA TV

Killed By Death ( Motörhead ) Marcus Nimbler

Sunday, August 5, 2018

18tH Asian Games 2018 Jakarta Palembang from 18 August to 2 September

he 2018 Asian Games, officially known as the 18th Asian Games and also known as Jakarta Palembang 2018, is a pan-Asian multi-sport event scheduled to be held from 18 August to 2 September 2018 in the Indonesian cities of Jakarta and Palembang.
For the first time, the Asian Games are being co-hosted in two cities; the Indonesian capital of Jakarta (which is hosting the Games for the first time since 1962), and Palembang, the capital of the South Sumatra province. Events will be held in and around the two cities, including venues in Bandung and province of West Java and Banten. The opening and closing ceremonies of the Games will be held at Gelora Bung Karno Main Stadium in Jakarta.

Tuesday, June 19, 2018

SWL, BCL "SDR.hu" liste des KiwiSDR dans le monde


What is Software Defined Radio?

Today's technology allows us to build radio receivers that sample radio signals and process them on a PC or an embedded system. Similarly, transmitters can be built that generate the RF signal digitally, then convert it to analog. Software Defined Radio (SDR) refers to the technologies that make these exciting things possible.
This site has been created to popularize SDR technology. With the help of a cheap USB DVB-T dongle you can get into SDR quite easily. It allows you to listen to the radio signals around you, but it also lets you to learn about DSP and code your own receiver.
On sdr.hu, you can find SDR receivers that amateur radio operators shared, so you can listen to radio signals without even having to buy any SDR hardware! In fact, amateur radio is a great thing and also lets you experiment with transmitting on the air, by using various frequency bands and modulations.

Qu'est-ce que la radio logicielle?
La technologie d'aujourd'hui nous permet de construire des récepteurs radio qui échantillonnent les signaux radio et les traitent sur un PC ou un système embarqué. De même, il est possible de construire des émetteurs qui génèrent numériquement le signal RF, puis le convertissent en analogique. Software Defined Radio (SDR) fait référence aux technologies qui rendent ces choses passionnantes possibles.

Ce site a été créé pour populariser la technologie SDR. Avec l'aide d'un dongle USB DVB-T bon marché, vous pouvez accéder à SDR assez facilement. Il vous permet d'écouter les signaux radio autour de vous, mais il vous permet également d'en apprendre davantage sur le DSP et de coder votre propre récepteur.

Sur sdr.hu, vous pouvez trouver des récepteurs SDR que les opérateurs de radio amateur ont partagés, donc vous pouvez écouter les signaux radio sans même avoir à acheter de matériel SDR! En fait, la radio amateur est une bonne chose et vous permet également d'expérimenter la transmission sur l'air, en utilisant différentes bandes de fréquences et modulations.



Friday, June 15, 2018

Poor propagation on SW for the end of solar cycle 24

Poor propagation on short-wave amateur radio ( HF )
The rolling average for the coming months, compiled by the Sunspot Index
Data Center Brussels ( Belgium )


 June 2018: 6
July: 6
Sept: 6
Oct: 6
Nov: 6
January 2019: 4

he estimated international sunspot number (EISN) is a daily value obtained by a simple average over available sunspot counts from prompt stations in the SILSO network. 
Time range: current month. 

Data description: Daily estimation of the Sunspot Number


Sunspot Index and Long-term Solar Observations

Forecast for solar cycle 25


"The current solar cycle 24 is decreasing faster than expected. The number of sunspots smoothed forecast for April to May 2018 is about 15; However, the actual monthly values ​​were lower. Will the solar minimum be longer than usual or could the solar cycle start earlier? Leading experts in the field of solar and space energy will convene a meeting in the coming years and try to predict the solar cycle 25. The "official" solar cycle forecasts include the month, the year and the intensity of the solar cycle. this maximum (peak, average number of sunspots). Consensus forecasts are the result of the collaboration of a solar cycle forecast panel composed of solar and space scientists from around the world. Usually, the committee considers all new relevant research findings, observational trends, and predictions of models available at the time of the panel. Like the hurricane season forecasts, the predictions of the solar cycle have improved; However, there are still significant differences in the prediction with respect to actual activity. Previous predictions of solar cycle forecast panel 24 predicted a maximum sunspot number of 90 in May 2013. After examining the actual sunspot numbers and solar activity, it was determined that the maximum solar cycle was reached in April. , 2014 and peaked at an average sunspot number of 82"

Best propagation was in the 50' and 60's...


Last publication of the IR5 index

"Solar activity in ionospheric forecasts
For the ionospheric prediction, the measured values of the ionospheric parameters must be analyzed according to a certain solar activity index. The forecast of this index allows the modeling of the future state of the ionosphere.

The CNET (
The Centre national d'études des télécommunications (French language acronym CNET, national center for telecommunication studies in English) was a French national research centre in telecommunications)
has adopted as a solar activity index a rolling five-month average of the relative number of spots defined by:

where IR5 is the index ( indice IR5 in French ) attached to month m and Rm is the average value of daily sunspot numbers for month m. ENST continues to calculate and use this index which has the advantage of presenting an excellent correlation factor with the ionospheric characteristics

Google translation

Cycle 24 from 2009/January to 2018/December

Max 90 ( 230 in the 50's and 50,s )

:Predicted_Sunspot_Numbers_and_Radio_Flux: Predict.txt
:Created: 2018 Jun 04 0200 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center (SWPC).
# Please send comments and suggestions to swpc.webmaster@noaa.gov
# Sunspot Number: S.I.D.C. Brussels International Sunspot Number.
# 10.7cm Radio Flux value: Penticton, B.C. Canada.
# Predicted values are based on the consensus of the Solar Cycle 24 Prediction Panel.

FØDUW Frank ( only on HamSphere 4.0 )

HamSphere 4.0 is a unique platform, the only one of its kind in the world. It has been conceived and created totally new from the ground up. HS4 provides the experience of a realistic HF radio communication environment. 

The HS4 model takes in to account the physics of planet Earth, its surface topography like the continents, land masses, water bodies, oceans, lakes and seas. It also models hundreds of kilometers of atmosphere above the earth's surface, the ionization of gases in the upper atmosphere to realistically produce ionospheric layers. 

The earth and the geo-sphere have been modeled to spin on its axis over 24 hours to simulate day and night conditions. The model ensures that the earth revolves around the sun with a declination of 23.45 degrees to simulate seasons and its related effects on ionospheric behavior. The photo-ionization due to the radiations from the sun based on Sunspot Numbers (SSN) and the Solar Flux Index (SFI) determine the behavior of the Ionosphere and follow the 11 year solar cycle.


Propagation prediction and operation

The ionospheric layers D, E, F1 and F2 are modeled very accurately in the HamSphere 4.0 system. The ionosphere layer heights and charge densities precisely track the real world ionosphere, thus providing propagation conditions identical to the real world. Therefore HS4 operators can freely use the tools used by real world radio operators to determine and predict HF band openings. One of the most popular tools to find HF band openings and predict propagation behavior is the VOACAP Online Service. You can use the VOACAP Online Service to predict propagation conditions

Propagation Links: 


Space Weather forecasts by a credentialed Space Meteorologist. Stay on top of GPS (GNSS) & amateur radio issues. Know where & when to see aurora during solar storms plus more! http://www.SpaceWeatherWoman.com











The most simple online service for propagation forecast and prediction

Exemple you are in Europe, on 15 meter, at 12 UTC= colors show you the propagation on this band ( RED is very good !!! ) South Africa, South America, Asia. It is very fast to see if there is propagation on amateur radio bands from 10 to 80 meter.