Archivo de la etiqueta: AMSAT

Es’hail-2 / QO-100 Teleport Inauguration Day February 14

Following the successful launch of Es’hail-2, the new Es’hailSat teleport will be inaugurated on February 14, 2019.

AMSAT-DL report:

This will also be the occasion to officially put the two amateur radio transponders of Qatar OSCAR-100, the first geostationary P4-A satellite from Qatar, into operation. The opening ceremony will be held by His Excellency Abdullah bin Hamad Al Attiyah, former Deputy Prime Minister of Qatar. A71AU is also the chairman of the Qatar Amateur Radio Society (QARS) and initiator of the first Qatari amateur radio satellite.

Es’hail-2 Geostationary Satellite – credit Es’hailSat

A team of the P4-A team of AMSAT-DL, consisting of the chairman Peter Gülzow DB2OS, Achim Vollhardt DH2VA and Thomas Kleffel DG5NGI, is on its way to Qatar to set up and commission the P4-A ground segment at the ground station of Es’hailSat. In addition to LEILA and the DVB-S2 DATV system, this also includes a club station for SSB radio operation under the callsign A71A. A backup station is installed at QARS in Doha. The ground station of the AMSAT-DL at the observatory Bochum is also ready for reception and transmission. Later, radio operation via Qatar-OSCAR 100 will also be carried out here under the callsign DL50AMSAT.

Only after the official release ceremony on February 14 will the transponders be released for general radio operation by radio amateurs worldwide.

During commissioning, we expressly request that you refrain from any transmission attempts!

The SCC in Qatar, as well as Bochum in Germany, are carrying out some tests to measure both transponders and to calibrate the ground systems.

Please also note the beacons sent in the NB transponder. On the DATV beacon of the WB Transponder a video of Es’hail-2 will be broadcast in an endless loop in DVB-S2 format on the opening day.

Es’hail-2 coverage area

Furthermore, the rules of the game, as defined in the Operating Guidelines for the Narrowband transponder and Wideband transponder are formulated. Please observe the band boundaries of the NB transponder as defined by the upper and lower beacon! A later adaptation and possible extension upwards may be considered after first experiments.

Again: Please no uplink attempts until the official release of the transponders by QARS!

We appeal to patience and to the Ham Spirit: any disruptions during commissioning and on the opening day could result in further postponements of the official release.

Source AMSAT-DL https://amsat-dl.org/en/eshail-2-qo-100-teleport-inauguration

Es’hail-2 Narrowband amateur radio transponder operating guidelines
https://amsat-dl.org/en/p4-a-nb-transponder-bandplan-and-operating-guidelines

Es’hail-2 Wideband amateur radio transponder operating guidelines
https://amsat-dl.org/en/p4-a-wb-transponder-bandplan-and-operating-guidelines

Es’hail-2 WebSDR enables you to receive both the Narrowband and Wideband transponders online
https://eshail.batc.org.uk/

Es’hail-2 amateur radio information
https://amsat-dl.org/en/eshail-2-amsat-phase-4-a
https://amsat-uk.org/satellites/geosynchronous/eshail-2/

Get The Details…

m5aka

AMSAT-UK

Help required in final tests before MarconISSta deinstalled

The International Space Station MarconISSta experiment will cease on February 9. Martin Buscher DJ1MBB asks radio amateurs with suitable equipment to participate in final tests.

The MarconISSta is a spectrum analyzer payload that monitors parts of the frequency spectrum in VHF, UHF, L and S band from the ISS in order to analyze current use and availability of bands for satellite communication.

Martin Buscher DJ1MBB writes:

We were just informed that it is likely that MarconISSta will be deinstalled on February 9, 2019. This is about three weeks earlier than expected, so we quickly have to finish any outstanding activities. Therefore: All Power To The ISS!

We want to invite everybody who owns a UHF antenna, preferably with an e.i.r.p. of more than 50 dBW, to do transmissions to the ISS. These transmissions will be recorded by MarconISSta and we will publish the results here. This experiment is a nice way for you to test your antennas, while it is great for us and ARISS to evaluate the ARISS VHF/UHF antenna pattern.

Transmission Details:
• Transmission time: Whenever you see the ISS between now and February 9th.
• Frequency: 435-438 MHz. Please avoid 435.95 MHz (our reference frequency) and 436.5 MHz (center frequency of receiver)
• Power: Continuous transmission of carrier, we recommend an e.i.r.p. of more than 50 dBW

Please do not use Doppler correction. We want to see the Doppler shift, it might help us to localize your transmission from this.

Further information https://marconissta.com/2019/02/05/urgent-call-all-power-to-the-iss/

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m5aka

AMSAT-UK

Es’hail-2/P4A Designated Qatar-OSCAR 100 (QO-100)

Es’hail-2 Geostationary Satellite – credit Es’hailSat

On November 15, 2018, Es’hail-2/P4A was launched on a Falcon 9 launch vehicle from the Cape Canaveral Air Force Station Space Launch Complex 40 in Florida.

Es’hail-2/P4A was developed jointly by QARS (Qatar Amateur Radio Society) and Es’hailSat (the Qatar Satellite Company), with AMSAT-DL as the technical lead, and is the first geostationary amateur radio payload. The satellite has reached its final position at 25.9 °E, and the narrow and wideband transponders were successfully tested on December 23rd. The transponders are expected to be opened for general use in February 2019.

At the request of AMSAT Deutschland e.V., QARS, and Es’hailSat, AMSAT hereby designates Es’hail-2/P4A as Qatar-OSCAR 100 (QO-100). May the 100th OSCAR satellite be the guide star to future amateur radio satellites and payloads to geostationary orbit and beyond.

Drew Glasbrenner, KO4MA
AMSAT VP Operations / OSCAR Number Administrator

Es’hail-2 WebSDR enables you to receive both the Narrowband and Wideband transponders online
https://eshail.batc.org.uk/

Es’hail-2 amateur radio transponder information
https://amsat-dl.org/en/eshail-2-amsat-phase-4-a
https://amsat-uk.org/satellites/geosynchronous/eshail-2/

Get The Details…

m5aka

AMSAT-UK

Consultation on Amateur Satellite Service – Your input needed

EO-79 and EO-80 – Image Credit ISIS

Satellite / nanosatellite project managers often wish to use amateur radio frequencies for educational and outreach purposes. The amateur radio community thus offers them a tremendous potential for monitoring their fragile conception. They often ask what kind of amateur radio experience would be interesting onboard a CubeSat or what services they could provide with their communications systems. The answer can be simple: a transponder, but these designers would like to bring novelty and innovation.

In order to provide more factual input, AMSAT-F has decided to launch an English Language Online Survey to find out what you do and would like to do as a satellite activity, what you expect from satellite designers and what you can bring to them. *The synthesis of these results will be presented at the second* AMSAT-F meetings « Rencontre spatiale radioamateur » on March 9 and 10, 2019 in Nanterre (France).

Do not hesitate, give your opinion by completing the questionnaire via the link : https://framaforms.org/amsat-francophone-survey-1548716436

The survey is in English but hosted on French server. Few guideline could be in French.

73
Christophe Mercier
AMSAT-F President

AMSAT-F in Google English https://tinyurl.com/France-AMSAT-F

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m5aka

AMSAT-UK

ARISS/NOTA ISS Slow Scan TV Event Feb 8-10

ISS SSTV image received by John Brier KG4AKV October 27, 2018

ARISS is planning another of their popular Slow Scan Television (SSTV) experiment events. International Space Station (ISS) transmissions are scheduled to begin Friday, Feb. 8 at 18:25 UTC and run through Sunday, Feb. 10 at 18:30 UTC on 145.800 MHz FM with the SSTV mode likely to be PD120.

SSTV operations is a process by which images are sent from the International Space Station (ISS) via ham radio and received by ham operators, shortwave listeners and other radio enthusiasts on Earth, similar to pictures shared on cell phones using twitter or instagram.

When this event becomes active, SSTV images will be transmitted from the ISS at the frequency of 145.800 MHz using the SSTV mode of PD120 and can be received using ham radio equipment as simple as a 2 meter handheld radio or a common shortwave or scanner receiver the covers the 2 meter ham band. After connecting the audio output of the radio receiver to the audio input of a computer running free software such as MMSSTV, the SSTV images can be displayed.

Transmissions will consist of eight NASA On The Air (NOTA) images (see https://nasaontheair.wordpress.com/). In additional, four ARISS commemorative images will also be included.

Once received, Images can be posted and viewed by the public at http://www.spaceflightsoftware.com/ARISS_SSTV/index.php In addition, you can receive a special SSTV ARISS Award for posting your image. Once the event begins, see details at https://ariss.pzk.org.pl/sstv/

Please note that the event is dependent on other activities, schedules and crew responsibilities on the ISS and are subject to change at any time. Please check for news and the most current information on the ARISS Twitter feed @ARISS_status or the AMSAT Bulletin Board

You can receive the pictures from the ISS by using the MMSSTV software and an Online Radio (WebSDR). Select a Frequency of 145800.0 kHz and Mode FM:
• Farnham WebSDR when ISS in range of London http://farnham-sdr.com/
• R4UAB WebSDR when ISS is over Russia http://websdr.r4uab.ru/

Check the N2YO site to see when the ISS is in range https://n2yo.com/?s=25544&df=1

ISS Slow Scan TV (SSTV) hints and links https://amsat-uk.org/beginners/iss-sstv/

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m5aka

AMSAT-UK