Es’hail-2 / AMSAT Phase 4-A

The first geostationary amateur radio transponder (P4-A) on Es’hail-2 is a joint project by the Qatar Satellite Company (Es’hailSat), the Qatar Amateur Radio Society (QARS) and AMSAT Deutschland (AMSAT-DL).




Scheduled for launch in 2018, this high-powered, advanced satellite will further boost broadband delivery, broadcasting and global connectivity in Qatar, the entire region and beyond. Es’hail-2 is being manufactured in Japan by MELCO (Mitsubishi Electric Corporation). Es’hail-2 will have Ku-band and Ka-band capabilities and support TV distribution, telecoms and government services to strategic stakeholders and commercial customers who value broadcasting independence, interference resilience, quality of service and wide geographical coverage. The satellite will also provide greater capability for anti-jamming protection and redundancy and back-up for Es’hail-1.

Es’hail-2 is a joint project by the Qatar Satellite Company (Es’hailSat), the Qatar Amateur Radio Society (QARS) and AMSAT Deutschland (AMSAT-DL).

Es'hail-2 Leaflet

About Es’hailSat

Es'hailSat-logoEs’hailSat, The Qatar Satellite Company was established in 2010. Based in Doha, Qatar, the company owns and operates satellites to serve broadcasters, businesses and governments. Es’hail 1, which shares a spacecraft platform with the European satellite operator Eutelsat, was successfully launched on 29th August 2013. The satellite provides television, voice, Internet, corporate and government communications services across the Middle East and North Africa region and beyond. Es’hail 2 is currently under development and will be located at the 26 degrees East TV broadcasting hotspot.



The Qatar Amateur Radio Society (QARS) is a national non-profit organization for amateur radio enthusiasts in Qatar.

In order to promote and foster space technology development in Qatar, Es’hailSat has initiated the development of new technology for the Qatar Amateur Radio Society.

With the provision of two transponders on the Es’hail-2 satellite for an Amateur Satellite Radio payload, this ground-breaking project is expected to provide an exciting new phase of activity for radio amateurs in the 21st century.

Es’hail-2 will provide the first Radio Amateur Satellite Corporation (AMSAT) geostationary communication capability that connects users across the visible globe in one single hop and in real-time. It will allow also the AMSAT community to validate and demonstrate their DVB standard.



AMSAT-DL’s involvement on behalf of QARS started in in December 2012, when AMSAT-DL president Peter Gülzow, DB2OS was invited to the International Amateur Radio Festival in Doha for a presentation about Amateur Radio Satellites.

The conference was chaired by A71AU H.E. Abdullah bin Hamad Al Attiyah, Chairman of the Qatar Amateur Radio Society (QARS), former deputy Prime Minister of The State of Qatar, Minister of Energy Industry, Chairman of the Administrative Control and Transparency Authority. In his opening ceremony HE Abdullah bin Hamad Al Attiyah stressed the significant role amateur radio plays in the society during the opening of the Qatar international amateur radio festival at the Al Rayyan Theatre in Souq Waqif.

“For developing countries amateur radio societies can promote technical expertise to help out in the local communities,” he said, adding amateur radio as a hobby has provided platform for training in electronics, broadcasting theories, and telecommunication techniques. Al Attiyah also underscored the importance of amateur radio for special needs persons, giving them a good chance to keep in touch with the world. “Amateur radio also responds very quickly in times of crisis and emergencies and provide support for telecom when ordinary channels of communications are not functional,” he said. It is not surprising, he said, in an era of advanced technology that more people are joining amateur radio societies around the world with an increasing number of people seeking licences. “That is why we as concerned bodies are giving support to further promote this hobby under the International Telecommunication Union,” he said.

“While users of electronic social media discuss issues on individual-to-individual basis, members of amateur radio put subject before large audiences across the world. Even though it has some limitations as regards discussion of some subjects like religion, politics and business openly, amateur radio continues as a creative hobby for large numbers of people.” Lauding Qatar government for its support to the group, Attiyah said, “Qatar’s government has been very supportive of QARS since its beginning in the early 80’s. Now, the society has over 100 members in Qatar.



Weitere Seiten zu diesem Thema
  • Following the successful launch on November 15th of Es’hail-2 on board the SpaceX Falcon 9 launch vehicle, Mitsubishi (MELCO) and Es’hailSat will begin the In Orbit Testing (IOT) program once the satellite has been positioned in a test orbital slot – the positioning should be achieved in the next few days. The IOT phase will

  • On November 15th, the Es’hail-2 communications satellite for the Qatari satellie operator Es’hailSat (The Qatar Satellite Company) was launched on a Falcon 9 rocket from SpaceX at Cape Canaveral spaceport. On board is AMSAT Phase 4-A, the first amateur radio linear  transponder in geostationary orbit. AMSAT-Deutschland e.V. (AMSAT-DL for short) was significantly involved in the

  • Nachdem Space X den Triebwerk-Test an der Falcon 9 Rakete heute Nacht erfolgreich durchgeführt hat, wurde nun der Starttermin auch offiziell bestätigt. AMSAT-DL Präsident und Es’hail-2 Projektleiter Peter Gülzow und Projekt-Manager Achim Vollhardt, sind bereits auf dem Weg nach Florida zum Kennedy Space Center und werden uns mit sicher tollen und spektakulären Bildern und Informationen

  • Es’hail-2 – Phase 4 at last! by Peter Guelzow DB2OS at the 31st annual AMSAT-UK International Space Colloquium in Guildford on July 30, 2016.

  • Official SpaceX Photo, SAOCOM 1A Mission, Public Domain

    As you can learn from various unofficial sources on the internet, the launch of Es’hail-2 with the two AMSAT transponders is now imminent (Photo: Official SpaceX Photo, SAOCOM 1A Mission, Public Domain).   Last test before the launch A few days before the launch, a so-called “static fire” test of the launcher’s engines takes place.

  • This guide is being issued as an initial document in advance of the launch and commissioning of the Es’hail-2 spacecraft. This will enable potential users to be informed about the plans and operating procedures that should be adopted. It is expected that the document will be updated regularly to take into account the operational experience.

  • Beim Aufbau der AMSAT-DL Bodenstation für den P4-A Transponder auf Es’hail-2 ist manchmal außer dem Lötkolben auch Muskelkraft erforderlich. Michael Lengrüsser DD5ER und Jens Schoon DH6BB haben am Freitag vor dem AMSAT-DL Symposium noch den Spaten benutzt und einige Gräben für die Verlegung der Kabel zu den Up- und Downlink Antennen ausgehoben.   (Photos: Jens,

  • Seit Freitagmorgen sind wir dabei die einzelnen Komponenten für die Es’hail-2 / P4-A Bodenstation in Katar fertigzustellen und final zu testen. Das Equipment soll später in der Es’hailSat Kontrollstation (SCC) installiert werden. Eine weitere Anlage wird bei der QARS in Doha als Backup stehen. Desweiteren werden wir die dritte Bodenstation bei bei AMSAT-DL in Bochum

  • The following operating guidelines and proposed bandplan are designed to enable the most efficient use of the 8MHz wide transponder for all users. It is expected that these initial guidelines will be further developed after commissioning. Coordination Due to the very large number of variations of transmission parameters, it is essential that all users notify

  • Nach der Entwicklung eines Empfangskonverters zum Empfang des Phase-4A Transponders stellte sich für die Referenz- Bodenstationen der QARS und AMSAT-DL schnell die Frage nach einem passenden Uplinksystem. Sendemischer für das 13-cm-Band sind zwar nicht zahlreich, aber durchaus vorhanden. Leider ergab eine einfache Suche keine Hardware die all unsere Wünsche erfüllen konnte und so wurde (wieder


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