WELCOME TO YV-SAT GROUP - BIENVENIDOS AL GRUPO YV-SAT

martes, 30 de agosto de 2011

YV6BFE José Luis Castillo - 100 GRIDS - FIRST IN VENEZUELA AND SOUTH AMERICA




jueves, 25 de agosto de 2011

EA5GTU/P DESDE SU BALCON EN LA MANGA, Murcia, ESPAÑA con YV5MM MODO ROS

ROS with balcony antenna

By José Alberto Nieto Ros This antenna is used by EA5GTU/P during his holidays  in La Manga (Spain). Besides of  this antenna being low efficient on HF, he could contact with YV5MM (Venezuela) with ROS.


And this is an example of how you should not configure your Rig filter. In this case ROS frequencies below 1000Hz are lost in a Icom-7000. However the contact with YV5MM could be completed in the worst conditions.

lunes, 22 de agosto de 2011

jueves, 11 de agosto de 2011

ARISSat-1 - Imágen bajada EL 11 de Agosto de 2011 a las 23:45 UTC


PUBLICADA EN LA GALERIA DE AMSAT

Noticias Científicas de la NASA - PERSEIDAS ESTE FIN DE SEMANA

Noticias Científicas de la NASA
La lluvia de meteoros Perseidas tendrá su máxima actividad este fin de semana, y la Estación Espacial Internacional participará en el espectáculo. Los observadores del cielo en muchos pueblos y ciudades de Estados Unidos podrán observar varios sobrevuelos de la EEI el 12 y 13 de agosto, justo cuando se espera que los meteoros Perseidas alcancen su máxima actividad bajo la luz de la Luna.
TODO EL REPORTAJE en
http://ciencia.nasa.gov/ciencias-especiales/09aug_perseids2011/

domingo, 7 de agosto de 2011

ARISSat-1 ya tiene su nombre propio - Por YV5HUJ Edwin Rivera

En Orbitron ya aparece el ARISSat-1, identificado como RADIOSCAF-B.
Efectivamente, sigue la misma trayectoria de la ISS.
 
Veo estos próximos pases, hora YV:
 
06/08/2011 20:49:41 RADIOSCAF-B          208.3  0.0  ecl  2301 299.0 -35.1
06/08/2011 20:54:56 RADIOSCAF-B          125.5 50.6  ecl   481 299.6 -36.2
06/08/2011 21:00:08 RADIOSCAF-B           43.2  0.0  ecl  2282 300.4 -37.3
 
06/08/2011 22:27:39 RADIOSCAF-B          271.9  0.0  ecl  2292 318.6 -54.1
06/08/2011 22:31:00 RADIOSCAF-B          311.9  4.4  ecl  1806 319.6 -54.7
06/08/2011 22:34:21 RADIOSCAF-B          352.1  0.0  ecl  2284 320.7 -55.2
 
Gracias, 
Edwin - YV5HUJ

YV5JIP - Jose DÁgosto - Caracas - IMAGENES DE PRUEBA

El colega YV5JIP José DÁgosto ha comenzado a hacer sus pruebas con el programa WxtoIMg y se construyó su propia antena cuadrifilar  con apoyo y ayuda de su esposa YY5DAL

sábado, 6 de agosto de 2011

NOAA - TEMPORADA DE HURACANES EN EL ATLANTICO - IMPORTANTE INFORMACION

NOAA's Atlantic hurricane season update calls for increase in named storms

Forecasters have higher confidence for an active season

August 4, 2011
Tropical Storm Emily on August 3 from NOAA's geostationary satellite GOES-EAST.

Tropical Storm Emily on August 3 from NOAA's geostationary satellite GOES-EAST.
Download here. (Credit: NOAA)
NOAA issued its updated 2011 Atlantic hurricane season outlook today raising the number of expected named storms from its pre-season outlook issued in May. Forecasters also increased their confidence that 2011 will be an active Atlantic hurricane season. NOAA’s Climate Prediction Center, a division of the National Weather Service, updates its Atlantic hurricane season outlook every August.
“The atmosphere and Atlantic Ocean are primed for high hurricane activity during August through October,” said Gerry Bell, Ph.D., lead seasonal hurricane forecaster at the Climate Prediction Center.  “Storms through October will form more frequently and become more intense than we’ve seen so far this season.”
Key climate factors predicted in May continue to support an active season. These include: the tropical multi-decadal signal, which since 1995 has brought favorable ocean and atmospheric conditions, leading to more active seasons; exceptionally warm Atlantic Ocean temperatures (the third warmest on record); and the possible redevelopment of La Niña.  Reduced vertical wind shear and lower air pressure across the tropical Atlantic also favor an active season.
Based on these conditions and on climate model forecasts, the confidence for an above-normal season has increased from 65 percent in May to 85 percent. Also, the expected number of named storms has increased from 12-18 in May to 14-19, and the expected number of hurricanes has increased from 6-10 in May to 7-10.
Across the entire Atlantic Basin for the whole season – June 1 to November 30 – NOAA’s updated seasonal outlook projects, with a 70 percent probability, a total of:
  • 14 to 19 named storms (top winds of 39 mph or higher), including:
  • 7 to 10 hurricanes (top winds of 74 mph or higher), of which:
  • 3 to 5 could be major hurricanes (Category 3, 4 or 5; winds of at least 111 mph)
These ranges are indicative of an active season, and extend well above the long-term seasonal averages of 11 named storms, six hurricanes and two major hurricanes.
The Atlantic basin has already produced five tropical storms this season: Arlene, Bret, Cindy, Don and Emily. All eyes this week are on Emily, which continues to develop and move towards the United States.
The last hurricane to make landfall in the United States was Ike in 2008. Last year saw above-normal hurricane activity, but none made landfall in the United States. August through October are peak months of the Atlantic hurricane season, and FEMA urges people not to be lured into a false sense of security by the lack of hurricanes so far this year.
"It is still early in this hurricane season and we know it can take only one storm to devastate communities and families," said FEMA Deputy Administrator Rich Serino. "Many disasters come without warning, but that’s not the case with hurricanes. This is hurricane season, if you haven't already, now is the time to take a few simple steps to get you and your family prepared. Anyone can visit www.ready.gov to learn more."
Be prepared for the hurricane season with important information available online at hurricanes.gov/prepare and at FEMA’s ready.gov.
NOAA’s mission is to understand and predict changes in the Earth's environment, from the depths of the ocean to the surface of the sun, and to conserve and manage our coastal and marine resources. Join us on Facebook, Twitter and our other social media channels.

YV6GM - Gerardo Maduro Winklaar - Captaciones de imágenes - Sábado 6 de Agosto de 2011


jueves, 4 de agosto de 2011

IMAGEN DE ARISSat- 1 - Agosto 5, 2011 01:43:02 UTC - captada en FJ79sk por YW6ISS

RS01S  Imágen captada con el programa MMSTV en Anaco, Venezuela FJ79sk.

YV6ALX - LUIS LEON - EL TIGRE, ESTADO ANZOATEGUI - ARISSat-1 - Segundo Pase de hoy 4 de Agosto en la mañana

ARISSat-1 SSTV SEGUNDO PASE / 04-08-2011 10:30 HLV
Frx: 145.950 Mhz.  / Ant.: VHF Vertical  / Rig: Kenwood TM-732A
Sofware: MMsstv Version 1.08
 
AIRSSat1 SEGUNDO PASE 201108041409.jpg

ARISSat-1 - Imágen recibida por YV5MM en Anaco FJ79sk a las 14:07 UTC - Agosto 4 2011

ARISSat-1 - Página de información diaria

Página de información diaria en éste  enlace:


http://www.arissat1.org/v3/

ARISSat-1 / REPORTE DE YV5DSL- José Morales - CARACAS

Anexo a todos lo siguiente:
En FM podran recibir los ID de Voz y SSTV, en CW! y CW2 es el beacon, puede ser que escuchen en uno u otro esto indica el modo de BPSK que trasmite deben colocar su receptor en USB y colocar la señal en la linea de descifrar para esto deben tener el programa instalado y la tarjeta en STAR para que en la pantalla principal vean la telemetria y los valores en la siguiente pantalla, en el descifrador de CW del mismo programa veran la identoificacion en CW, Suerte a todos ahora hay un buen pase y a toda potencia, el transponde aparentemente no funciona no se sabe nada de la antena de uhf..
Saludos de José YV5DSL


Saludos.
Anexo dos archivos de la grabacion realizada durante el periodo de prueba del satelite ARISSAT-1 que sera lanzado desde la ISS el proximo dia 3 de agosto, grabacion obtenida desde mi estacion son aprox 40 seg y un periodo de 2 min de descanso en cada orbita por lo que en un pase normal solo dos grabaciones se pueden realizar. El ARISSAT-1 se encontraba dentro de la ISS, varios paises reportaron las trasmisiones, todo indica que este satelite nos brindara gratas sorpresas desde su lanzamiento
Jose
YV5DSL
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ARISSat-1 / REPORTE DE YY7PMG - Pedro González - ISLA DE MARGARITA

Saludos colegas. acabo de copiar al ARISSat-1 aca en la isla; tambien escuche la transmision de sstv pero ya estaba muy bajo por lo que la decodificacion no esta muy buena solo de adjunto la grabacion de la transmision.

73´s de  YY7PMG - Pedro G. desde San Sebastian - Tacarigua, Isla de Margarita.
 loc: FK81bb.
__._,_.___
Archivos adjuntos de PEDRO GONZALEZ GONZALEZ
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martes, 2 de agosto de 2011

Russian Spacewalkers to Move Cargo Boom, Deploy Ham Radio Satellite
07.29.11
 
Spacewalkers Sergei Volkov and Alexander Samokutyaev Image above: Expedition 28 Flight Engineers Sergei Volkov and Alexander Samokutyaev. Credit: NASA
› View hi-res image
Two Russian cosmonauts will leave the confines of the International Space Station on Aug.3 to move a cargo boom from one airlock to another, install a prototype laser communications system and deploy an amateur radio micro-satellite.

Expedition 28 Flight Engineers Sergei Volkov and Alexander Samokutyaev are scheduled to venture outside the Pirs airlock at 10:30 a.m. EDT Wednesday to begin the six-hour excursion. Both spacewalkers will wear Russian Orlan-MK spacesuits. Coverage of the spacewalk will be broadcast live on NASA Television beginning at 10 a.m. EDT.

Volkov, making his third spacewalk, and Samokutyaev, making his first, will both wear spacesuits marked with blue stripes. Volkov’s previous two spacewalks occurred while he was Expedition 17 commander in 2008.

During the spacewalk, Commander Andrey Borisenko and NASA Flight Engineer Ron Garan will close the hatches on the Poisk docking module, which is opposite the Pirs airlock, and seal the hatches between Zvezda and Poisk. This gives them access to their Soyuz 26 spacecraft, protects against the unlikely possibility of a sudden station depressurization and allows the forward transfer compartment of Zvezda to be used as a backup airlock. Flight Engineers Mike Fossum of NASA, and Satoshi Furukawa of the Japan Aerospace Exploration Agency, will be in the U.S. segment and will have access to their Soyuz 27 spacecraft, which is docked to the Rassvet module.

The duo’s first task will be to deploy a boxy, 57-pound satellite, called alternately ARISSat-1 and Radioskaf-V, which is the prototype test flight of a proposed series of educational satellites being developed in a partnership with the Radio Amateur Satellite Corp. (AMSAT), the NASA Office of Education ISS National Lab Project, the Amateur Radio on ISS (ARISS) working group and RSC-Energia.

The ARISSat design can carry up to four student experiments and the data from these experiments will be transmitted to the ground via an amateur radio link. This prototype ARISSat-1 carries one student experiment, a pressure sensor built at Kursk University in Russia, to measure atmospheric pressure for the lifetime of the satellite.

Radioskaf-V Nanosatellite Image above: Radioskaf-V nanosatellite. Credit: NASA
› View hi-res image
In addition to transmitting student experiment data, ARISSat-1 will transmit still-frame video Earth views from four onboard cameras, commemorative greetings in the native languages from students around the world, including messages to commemorate the 50th anniversary of the launch of Russian cosmonaut Yuri Gagarin as the first human in space. The satellite, which uses off-the-shelf equipment and software provided by AMSAT, also features a Morse code tracking beacon and will function as a space communications utility for use by “ham” radio operators world-wide.

More information on tracking ARISSat-1 decoding its telemetry visit the AMSAT and ARISSat-1 websites:

http://www.arissat1.org/v3/

http://www.amsat.org/amsat-new/

Their next job will be to install a barbecue grill-shaped experiment to test the use of a laser-based system for high-speed transmissions at up to 100 megabytes a second to the Earth from Russian science experiments. The system will be installed on a universal work platform outside the Zvezda service module hull just behind its solar arrays.

After that, they’ll take photographs of a nearby antenna that has been showing signs of degraded performance. The imagery will be used to help engineers on the ground find the root cause of the antenna’s problem.

Next, they’ll retrieve an antenna that was used for docking of the Poisk module when it arrived at the station in November 2009. The antenna is no longer needed and will be brought back inside the station.

Then it is on to the major objective of the spacewalk, the move of the telescoping STRELA-1 cargo boom from the Pirs docking compartment to the Poisk docking compartment. The task is expected to take nearly three hours to complete, and will involve the use of the STRELA-2 boom, with its base attached to Pirs. At the completion of the task, STRELA-1 will be ready for use from Poisk, and STRELA-2 will remain on Pirs. The cargo booms extend somewhat like a fishing rod, and can be used to help move massive components around the outside of the Russian segment of the space station.

Once the boom relocation is complete, the spacewalkers will retrieve an experiment known as Biorisk from the airlock, and install it on a handrail outside the Pirs module. Biorisk is short for the Influence of Factors of the Space Environment on the Condition of the System of Microorganisms-Hosts Relating to the Problem of Environmental Safety of Flight Techniques and Planetary Quarantine. The experiment will look at the effects of bacteria and fungus on structural materials used in spacecraft construction with a focus on how solar activity may affect the growth of these microbes.

With all tasks complete, Volkov and Samokutyaev will take some final photographs, reenter the Pirs airlock and end their spacewalk.

The next Russian spacewalk is planned for February 2012, when the Expedition 30 crew will be in orbit aboard the station.

ISS Update - August 2, 2011

INFORMACION IMPORTANTE DEL COLEGA M5AKA TREVOR HAWKINS , Directivo de AMSAT U.K. - REINO UNIDO

Following the successful tests last weekend the latest Amateur Radio
satellite ARISSat-1 will be deployed from the ISS, Aug 3, during
a space walk that commences at 1400 GMT. AMSAT-NA have created a
special page with information on how to receive the satellite.

ARISSat-1 can transmit Slow Scan TV pictures from its 4 onboard cameras and it is hoped a picture of the actual deployment wil be transmitted. ARISSat-1 also has CW and BPSK beacons and a cross band 435/145 MHz linear transponder for SSB/CW working. The 145.950 MHz SSTV FM signal should be receivable using simple equipment such as a 2m FM handheld with a quater wave whip.


Read the new AMSAT-NA guide - ARISSat How To: Operating Tips,

Pointers, Downloads
http://www.amsat.org/amsat-new/ARISSat/ARISSatHowTo.php

You can watch the deployment of ARISSat-1 live on NASA TV, coverage

starts at 1400 GMT (1500 BST)
http://www.nasa.gov/ntv

It is believed the first pass receivable in the British Isles will be 23:46:34 GMT on August 3.


Online Satellite Pass Predictions, select ARISSat-1

http://www.amsat.org/amsat-new/tools/predict/

Read the ARISSat-1 article from QST at

http://web.me.com/clintbradford/Work-Sat/ARISSat-1_files/QST-ARISSat1.pdf

Follow ARISSat-1 on Twitter:

http://twitter.com/#!/arissat1
In USA you can also text 'follow Arissat1' to 40404 with your cell
phone. (leave off the quotes).

Free Slow Scan TV Software MMSSTV uses your PCs Soundcard

http://mmhamsoft.amateur-radio.ca/

IZ8BLY Vox Recoder, enables you to record the signals from the

ARISSat-1 on 145.950 MHz FM while you're at work
http://antoninoporcino.xoom.it/VoxRecorder/

The latest telemetry can be seen live on your computer or cell phone at

http://www.arissattlm.org/mobile

Download the Windows and Mac versions of the ARISSatTLM free ground

station soundcard demodulator and display software:
http://www.arissattlm.org/

The ARISSatTLM software user guide is available:

http://tinyurl.com/42uhtyf (amsat.org)

Get your color ARISSat-1 Frequency Guide:

http://tinyurl.com/4t497t2 (amsat.org)

AMSAT-UK publishes a colour A4 newsletter, OSCAR News, which is full

of Amateur Satellite information.
Join online at http://tinyurl.com/JoinAMSAT-UK

A sample edition of the newsletter can be seen at

http://www.uk.amsat.org/on_193_final.pdf

----

73 Trevor M5AKA

lunes, 1 de agosto de 2011

YV5DSL - JOSE MORALES DESDE CARACAS, VENEZUELA - Grabaciones de ARISSat-1

Saludos.
Anexo dos archivos de la grabacion realizada durante el periodo de prueba del satelite ARISSAT-1 que sera lanzado desde la ISS el proximo dia 3 de agosto, grabacion obtenida desde mi estacion son aprox 40 seg y un periodo de 2 min de descanso en cada orbita por lo que en un pase normal solo dos grabaciones se pueden realizar. El ARISSAT-1 se encontraba dentro de la ISS, varios paises reportaron las trasmisiones, todo indica que este satelite nos brindara gratas sorpresas desde su lanzamiento
Jose
YV5DSL
__._,_.___


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