Es’hail-2 geostationary satellite discussed in Doha

Michael, DF4HR, Wolfgang, DK2DO, Abdullah bin Hamad al-Attiyah, Mustapha, DL1BDF, Sabaan Mismar Al-Jassim, A71BP - Credit DARC

Michael, DF4HR, Wolfgang, DK2DO, Abdullah bin Hamad al-Attiyah, Mustapha, DL1BDF, Sabaan Mismar Al-Jassim, A71BP – Credit DARC

The DARC report the Es’hail-2 geostationary satellite, which will carry 2.4 to 10 GHz amateur radio transponders, was discussed at a meeting in Doha in January.

A Google-English translation of the Deutscher Amateur Radio Club e.V. post reads:

Es'hail-2 Geostationary Satellite

Es’hail-2 Geostationary Satellite

At the invitation of Sabaan Mismar Al-Jassim, A71BP, General Secretary of QARS, Mustapha Landoulsi, DL1BDF, Coordinator of the Foreign Office for Arabic-speaking Countries, visited Doha in January to discuss topics of common interest with the Qatari radio-comrades and engage in radio-related activities QARS to participate. He was accompanied by Michael Regitz, DF4HR, and Prof. Dr. Wolfgang Borschel, DK2DO. The German OMs were u. a. by Abdullah bin Hamad al-Attiyah, former Deputy Prime Minister and Minister of Industry and Energy.

The focus of the talks was information about the new satellite Es’hail-2, which will be launched this year from the United States. Es’hail-2 is the first geostationary satellite with an amateur radio payload and a joint project by Qatar’s Qatar Amateur Radio Federation, Qatar Satellite Company and AMSAT-DL. With the stationing of the Phase 4 satellite, amateur radio traffic from Asia via Europe to South America will result in previously unknown opportunities for new activities.

Al Attiyah, who continues to play a key role in the international energy dialogue as president of a foundation for energy and sustainable development, has accepted an invitation from DARC e. V. and pay a visit to the HAM RADIO in Friedrichshafen. He will be there u.a. the amateur radio community are available for questions. The visit offers the opportunity to continue to promote the cooperation between the amateur radio associations of both countries and the concerns of international amateur radio. This is reported by Mustapha Landoulsi, DL1BDF, and Helmut van Edig, DL3KBQ.

Source: http://darc.de/
Follow DARC at https://twitter.com/DARC_eV

Es’hail-2 is expected to be positioned at 25.5 degrees East, as yet no launch date has been announced. Amateur transponder frequencies https://amsat-uk.org/satellites/geosynchronous/eshail-2/

On February 25, 2018 Es’hailSat @eshailsat tweeted that Es’hail-2 reached a major milestone in spacecraft and ground compatibility, with successful completion of TT&C RF and baseband compatibility tests https://twitter.com/eshailsat/status/967678982404689920

Geostationary Amateur Radio Transponder Talk and Demonstration

Coverage area of Es'hail 2

Coverage area of Es’hail 2

On Saturday, October 14 at 1:45pm BST (1245 GMT) AMSAT-DL President Peter Guelzow DB2OS will give a presentation on the Es’hail-2 Geostationary Satellite Amateur Radio Transponders to the AMSAT-UK International Space Colloquium in Milton Keynes.

It is expected the presentation will include a demonstration of the P4A transponder simulator. All attendees are welcome to bring any equipment they have for CW/SSB or DATV for the 2.4 GHz and 10.5 GHz bands. The transponder mimics the real thing: 2400-2410 MHz uplink to 10489.5-10499.5 MHz downlink.

This year the AMSAT-UK Colloquium is taking place as part of the RSGB Convention at the Kents Hill Park Conference Centre, Timbold Drive, Milton Keynes, MK7 6BZ on the weekend of October 14-15. Tickets to the event are available at the door or you can book in advance at
http://rsgb.org/main/about-us/rsgb-convention/

The Colloquium is talking place in Lecture Room 5, download the programme schedule from
http://rsgb.org/main/about-us/rsgb-convention/rsgb-convention-programme/

Live streaming of Colloquium talks https://amsat-uk.org/2017/10/11/live-streaming-space-colloquium-mk/

New Geostationary Transponders

Es'hail-2 coverage from 26 degrees EastThe AMSAT-UK International Space Colloquium at the Holiday Inn, Guildford will hear presentations from Peter Gülzow DB2OS and Achim Vollhardt DH2VA on the new geostationary amateur radio satellite transponders currently planned to launch in the 3rd quarter of 2017.

The two transponders will provide SSB, Digimode, CW and Digital Amateur TV communications between five continents.

On Saturday, July 30 Peter Gülzow DB2OS will talk about the Phase 4A flight segment while Achim Vollhardt DH2VA will describe the ground station requirements.

The event over the weekend of July 30-31 is open to all, admittance is £10 per day, car parking is free. Those wishing to find out about amateur space communications are most welcome to attend.

Phase-4A Geostationary Transponders https://amsat-uk.org/2016/06/24/phase-4a-geostationary-transponders/

Further information on the event at https://amsat-uk.org/colloquium/

Phase-4A Geostationary Transponders

Es'hail-2 coverage from 26 degrees EastEs’hail 2 is a geostationary satellite which will carry two amateur radio transponders.

The launch of the Es’Hail-2 satellite into a geostationary orbit is currently planned for the 3rd quarter of 2017. The coverage area of the Narrowband (NB) and Wideband (WB) transponders should extend from Brazil to Thailand.

The two “Phase 4” amateur radio non-inverting transponders will operate in the 2400 MHz and 10450 MHz bands. A 250 kHz bandwidth linear transponder is intended for conventional analogue operations and an 8 MHz bandwidth transponder for experimental digital modulation schemes and DVB amateur television.

Narrowband Linear transponder
 2400.050 -  2400.300 MHz Uplink Right Hand Circular Polarization
10489.550 - 10489.800 MHz Downlink Vertical Polarization

Wideband digital transponder
 2401.500 -  2409.500 MHz Uplink Right Hand Circular Polarization
10491.000 - 10499.000 MHz Downlink Horizontal Polarization

Download the Eshail-2 P4-A Amateur Radio Leaflet 2016-06-24

A LEILA-2 system, similar to LEILA flown on AMSAT OSCAR-40 (P3-D) will be used for Traffic Control and Telemetry Beacons. The mayor difference is, that this is a ground-based system which will be installed at the Es’hailSat Satellite Control Center (SCC) near Doha in Qatar.

LEILA-2 will analyze the downlink power levels in the passband of the NB-transponder and automatically generate a Siren to remark users to decrease their uplink power.

LEILA-2 is a joint development of AMSAT-DL’s Achim Vollhardt DH2VA and AMSAT-UK’s Howard Long G6LVB.

LEILA is an German acronym for “LEIstungs Limit Anzeige”, which means: Power Limit Indicator.

The following video gives a first insight to the Es’hail-2 LEILA-2 hardware concept

Watch Es’hail 2 AMSAT-DL LEILA 2 Transponder

Es’Hail-2 Geostationary P4-A Transponder Frequencies

Es'Hail-2 Geostationary P4-A Transponder Frequencies

Es’Hail-2 Geostationary P4-A Transponder Frequencies

The launch of the Es’Hail-2 satellite into a geostationary orbit at 25.5 degrees East is planned for the 3rd quarter of 2017. The coverage area of the amateur radio Narrowband (NB) and Wideband (WB) transponders should extend from Brazil to Thailand.

Es'hail-2 coverage area

Es’hail-2 coverage area

Es’hail 2 will carry two “Phase 4” amateur radio non-inverting transponders operating in the 2400 MHz and 10450 MHz bands. A 250 kHz bandwidth linear transponder intended for conventional analogue operations and an 8 MHz bandwidth transponder for experimental digital modulation schemes and DVB amateur television.

Narrowband Linear transponder
 2400.050 -  2400.300 MHz Uplink
10489.550 - 10489.800 MHz Downlink

Wideband digital transponder
 2401.500 -  2409.500 MHz Uplink
10491.000 - 10499.000 MHz Downlink

Equipment requirements:

X-Band 10 GHz Downlink:
– 89 cm dishes in rainy areas at EOC like Brazil or Thailand
– 60 cm around coverage peak
– 75 cm dishes at peak -2dB
– NB: linear vertical polarisation
– WB: linear horizontal polarisation

S-Band 2.4 GHz NB-Uplink:
– narrow band modes like SSB, CW
– 5W nominal Uplink power (22.5 dBi antenna gain, 75cm dish)
– RHCP polarisation

S-Band 2.4 GHz WB-Uplink (DATV):
– wide band modes, DVB-S2
– peak EIRP of 53 dBW (2.4m dish and 100W) required
– RHCP polarisation

Presentation on Es’hail by Peter Guelzow DB2OS, President of AMSAT-DL, at the 2013 AMSAT-UK Colloquium http://www.batc.tv/streams/amsat1306

Geostationary / Geosynchronous ham radio satellite transponders

Possible coverage of Geosynchronous satellite 74 degrees West - Credit Bill Reed NX5R

Possible coverage of a Geosynchronous satellite at 74 degrees West – Credit NX5R

EngineerIT magazine reports on the quest by radio amateurs to get transponders on geostationary satellites.

Coverage area of Es'hail 2

Coverage area of Es’hail 2

The article quotes President of AMSAT DL, Peter Gülzow DB2OS, and describes the transponders planned for the Es’Hail-2 satellite, expected to be launched in the 3rd quarter of 2017 into a geostationary orbit at 26 degrees East.

Also mentioned is a project to build a transponder for a US satellite which could be in a geosynchronous orbit around 74 degrees West.

Read the EngineerIT article at
http://www.ee.co.za/article/radio-amateurs-quest-geostationary-satellites.html

What is a Geosynchronous orbit ? https://amsat-uk.org/satellites/geosynchronous/

Es’Hail-2 https://amsat-uk.org/satellites/geosynchronous/eshail-2/

AMSAT Phase 4 Update for Palomar Amateur Radio Club November 4, 2015
http://www.ntms.org/files/Feb2016/PARC_4on4.pdf
https://amsat-uk.org/2015/11/08/geosynchronous-ham-radio-project-video/