HS10KING on QO-100 geostationary satellite



To strengthen the relationship between Thai and Japanese amateur radio operators representatives of the JAMSAT group of Japan have travelled to Thailand to visit the satellite ground station HS0AJ.

They will operate from the Ground Station of the Radio Amateur Society of Thailand under the patronage of His Majesty the King (RAST).

On the occasion of the coronation of His Majesty King Vajiralongkorn Bodindradebayavarangkun, HS10A (pronounced “Hotel Sierra-TEN-Alpha), as the 10th king to reign in the Chakri Dynasty, the National Broadcasting and Telecommunications Commission (NBTC), Thailand’s regulator, has authorized the special callsign HS10KING (pronounced “Hotel Sierra-TEN-KING).

There will be an opportunity to communicate with HS10KING using the QO-100 amateur radio satellite and low earth orbit (LEO) satellites that windows pass over Thailand by amateur radio stations which is similar to AMSAT Germany’s use of the special callsign DL50AMSAT using the QO-100 satellite.

RAST hence invites AMSAT amateur radio satellite operators to join in contacting the HS10KING special event station from June 22, 2019 at 10.00 UTC (17.00 Thailand time) until June 23, 2019 at 10.00 UTC (17.00 Thailand time) using SSB mode and DATV (333 – 250 KS) signals from the station HS10KING.

Please be informed and let others know of this opportunity.

Sincerely and with respect, de HS1JAN
Tanan Rangseeprom
Project Manager of JAISAT-1

QO-100 (Es’hail-2) https://amsat-uk.org/satellites/geo/eshail-2/

RSGB AGM Es’hail-2 / QO-100 talk now available

Dave Crump G8GKQ, Phil Crump M0DNY and Noel Matthews G8GTZ receive award from RSGB President Dave Wilson M0OBW - image credit RSGB

Dave Crump G8GKQ, Phil Crump M0DNY and Noel Matthews G8GTZ receive award from RSGB President Dave Wilson M0OBW – image credit RSGB

The RSGB have made available a recording and slides of the presentation given at the AGM on April 27, 2019 about the Es’hail-2 / QO-100 amateur radio transponders.

After the formal AGM proceedings and the trophy presentations, attendees were treated to an introductory talk on Qatar-Oscar 100 geostationary satellite given by Noel Matthews, G8GTZ, Dave Crump, G8GKQ and Phil Crump, M0DNY.

Listen to the talk and download the slides at

Play the Listen to AGM 2019 afternoon recording and fast forward to 20 minutes and 41 seconds in. The slides are near the bottom of the page.

Qatar OSCAR-100 web receiver now live

Es’hail-2 awards at RSGB AGM

AMSAT-DL President Peter Guelzow DB2OS at the Qatar National Day Station A71QND

AMSAT-DL President Peter Guelzow DB2OS

At the RSGB AGM in Birmingham on Saturday, April 27, 2019 two awards were made in recognition of work related to the amateur radio transponders on the geostationary satellite Es’hail-2 / QO-100.

The prestigious Louis Varney Cup for Advances in Space Communication was awarded to Peter Gülzow DB2OS for his leadership of the team responsible for the Qatar-OSCAR-100 mission which is now in service.

Dave Crump G8GKQ, Phil Crump M0DNY and Noel Matthews G8GTZ receive award from RSGB President Dave Wilson M0OBW - image credit RSGB

Dave Crump G8GKQ, Phil Crump M0DNY and Noel Matthews G8GTZ receive award from RSGB President Dave Wilson M0OBW – image credit RSGB

The Fraser Shepherd Award for Research into Microwave Applications for Radio Communication was awarded to Dave Crump G8GKQ, Phil Crump M0DNY, Noel Matthews G8GTZ and Graham Shirville G3VZV for enabling access for all the amateur radio community to QO-100 by developing and installing a narrow band transponder WebSDR, and wide band transponder spectrum monitor.

After the award presentation Dave, Phil and Noel gave a talk on Es’hail-2 / QO-100 covering a brief history of how the project came about, an overview of equipment required to operate QO-100 and an introduction and a demonstration of the WebSDR and spectrum monitor, which allow you to listen to stations on the narrow band segment using only a standard web browser.

Graham Shirville G3VZV was unable to be present to collect the award as on that Saturday he had to attend the key IARU Region 1 VHF/UHF/uW (C5) meeting in Vienna.

One of the presentations given at the IARU-R1 meeting was Popularity of ATV in the Netherlands by Chris van den Berg PA3CRX which you can see at

Graham Shirville G3VZV 5th from right at the IARU Region 1 VHF/UHF/uW (C5) meeting in Vienna

Graham Shirville G3VZV 5th from right at the IARU Region 1 VHF/UHF/uW (C5) meeting in Vienna

Coronation station HS10KING/mm on geostationary satellite

Es'hail-2 Qatar-OSCAR-100To mark the Coronation of King Vajiralongkorn Bodindradebayavarangkun (King Rama X) from May 4-6, 2019 the Radio Amateur Society of Thailand under the Patronage of His Majesty the King will be operating a special event station

The station will be operated from the Royal Thai Navy aircraft carrier, the Chakri Narubet, in the Gulf of Thailand from May 3-6 using the callsign HS10KING/mm.

This station will be making QSOs in the 40, 20, 15 and 10 metre HF bands, on 2 metres VHF and also using amateur radio satellites, including the Es’hail-2 / QO-100 satellite.

Royal Thai Navy aircraft carrier HTMS Chakri Narubet

Royal Thai Navy aircraft carrier HTMS Chakri Narubet

Consequently, the May meeting of RAST will be postponed to the second Sunday of the month, and will take place on Sunday May 12 at Sena Place Hotel when applications to take the upcoming Intermediate Class examination will be available

As usual all RAST members are welcome to attend this meeting and hopefully they will be able to have a QSO with HS10KING/mm.

Sincere 73,

Tony Waltham, HS0ZDX
RAST Vice-President
RAST English-language website: https://www.qsl.net/rast/

The Es’hail-2 / QO-100 geostationary satellite provides continuous coverage from Brazil across Africa and Europe all the way to Thailand. You can listen to its 10 GHz downlink from anywhere in the world by using the AMSAT-UK / BATC WebSDR based at Goonhilly

Simple dual band dish feed for Es’hail-2 / QO-100

DKARS April 2019 front coverThe April 2019 issue of the free DKARS magazine features an article in English – Simple dual band dish feed for Es’hail-2 / QO-100 by Mike Willis G0MJW, Remco den Besten PA3FYM and Paul Marsh M0EYT.

Their article, on pages 18-23, describes an easy to build 2.4 and 10 GHz dish feed, using commonly available materials, for Es’hail-2 / QO-100 deployment. The feed consists of a LHCP patch antenna for 2.4 GHz and a waveguide feed for 10 GHz, to be placed in the focal point of commonly available and cheap offset satellite TV dishes with f/D’s of around 0.6

Download the full magazine PDF from https://dkars.us13.list-manage.com/track/click?u=2a0602da7add78cfc4cee370d&id=f8424212ae&e=ca64a74f86

Dutch Kingdom Amateur Radio Society (DKARS) http://www.dkars.nl/index.php?page=magazine_uk

Additional information on Es’hail-2 /QO-100 can be found at

Spain: Authorization for 2.4 GHz operation

Es'hail-2 Qatar-OSCAR-100Spain’s national amateur radio society URE reports the regulator has agreed to allow amateur use of 2400.050 to 2409.500 MHz to access the E’hail-2 / QO-100 geostationary satellite.

A Google translation of the URE announcement reads:

Since the State of Qatar sent the geostationary satellite Es’hail-2, the first of its kind to be used by radio amateurs, to space on November 15 of 2018, the URE satellite (AMSAT) raised the possibility of requesting the Administration the free use of the entire segment granted for radio amateurs in Spain and not only segment 2316-2332 MHz.

The Administration, responding to the request submitted by the URE, has developed the present resolution, which authorizes until September 26, 2019, to the holders of radio amateur authorizations, the emission of the amateur radio satellite service from 2400.050 to 2409.500 MHz. For single-sideband telephone communications, with a maximum eirp of 1500 watts, from authorized amateur radio stations located anywhere in the national territory.

The resolution of the Secretary of State for Digital Progress

URE in Google English https://tinyurl.com/SpainURE

Es’hail-2 QO-100 https://amsat-uk.org/satellites/geo/eshail-2/