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Ham Satellite news

ESEO Commissioning starts

From FUNCube website:

On Monday
December 3rd 2018, the 50kg ESA Education Office satellite ESEO was launched by
Space-X on the Spaceflight SSO-A SmallSat Express mission.

 
Following the launch from Space Launch Complex 4E (SLC-4E) at Vandenberg Air Force Base, ESEO separated from the launch vehicle and automatically activated the periodic transmission of its telemetry beacon. However, by the time out of a predefined period, having not received commands from the ground station, the spacecraft automatically entered into safe mode.

Some initial communications issues were experienced by ESEO in receiving
commands from the ground stations in Forli’ (Italy) and Vigo (Spain), but they were resolved when the ESEO team of the Observatory of Tartu offered the possibility to use a ground station in Estonia. This is capable of transmitting with higher power, for a temporary contingent use. The Estonian ground station has been configured to be operated remotely by the ESEO MCC team, which involves students of the University of Bologna.

ESEO then started executing the commands transmitted from ground.

ESEO has now completed the LEOPS  (Launch and Early OPerationS) phase of its mission, reaching the platform nominal mode and has begun the process of commissioning the whole satellite: firstly the platform functions, with the payloads functions following.
 
As part of this commissioning process, but subject to the successful completion of other preparatory tasks of the platform subsystems commissioning, it is anticipated that initial testing of the AMSAT communications payload will be carried out within the next few weeks.
 
AMSAT-UK will endeavour to provide some advance notice of these tests being undertaken, but the first step will be activation of the 1200bps BPSK telemetry beacon on 145.895MHz. The telemetry format matches previous FUNcube missions and data from this beacon will be forwarded to the FUNcube Data Warehouse using any of the FUNcube dashboards. However, to see the decoded values and graphical displays, please download the dedicated ESEO mission dashboard which is available here https://download.funcube.org.uk/ESEO_Dashboard_v1177.msi
 
The payload has, additionally, a high speed, 4800bps BPSK data format downlink and also a Mode L/V FM transponder both of which will be tested.

Further information about ESEO can be seen here: https://www.esa.int/Education/ESEO/ESEO_student_satellite_in-orbit_commissioning_has_started

Categories
Ham Satellite news

BSUSat QSL card

@BsuSat @EU1SAT Thank you very much for QSL-card and gifts! Will soon be active again and will then continue to support with telemetry.

Categories
Ham Satellite news

SatMatch

SatMatch är ett online-verktyg för att se om en satellitpassage täcker in två olika positioner. Väldigt enkelt att använda. Finns på denna länk:
https://www.satmatch.com/

Categories
Ham Satellite news

P4-A uplink från Sverige

For english summary please see below the swedish text.

Det verkar som es hailsat II närmar sig sin slutposition mer och mer: https://eshail.batc.org.uk/ Det skall bli väldigt intressant att se den initiala transponderaktiviteten. För oss i SM så ser det fortsatt mörkt ut vad det gäller upplänk. (Vi är begränsade till 100mW in i antennsystemet). Det finns en ansökan som avslogs men den har överklagats och vi avvaktar slutligt besked. Skulle inte överklagan ge oss en bättre position så finns det planer på hur vi går vidare.

Det sker även förberedande arbete i VUSHF sektionen SSA för ett framtida planerat möte med PTS där vi så exakt som möjligt skall precisera vad vi behöver som ett minimum i tillförd effekt för att vi inom SM ska få vara med på den första Geostationära amatörtranspondern. Det kommer behövas lite initiala tester i verkliga livet för att se hur väl den hör när den öppnar för trafik och vi lite mer exakt vet vad som krävs.

Om ni vill kan ni titta hur smidigt dom löst det i HB9 med sitt ansökningsförfarande. https://www.uska.ch/amateurfunkpraxis/operating/amateurfunk-satelliten/eshail-2/

mvh Håkan SM7WSJ (Ordförande AMSAT-SM)

—
This is the present situation for swedish radio amateurs regarding P4-A uplink:

  • The maximum output is limited to 100mW
  • SSA (Amateur radio organisation in Sweden) is working to be able to have a future meeting with PTS (Swedish radio government) about this issue. This will probably be after the first real tests with the P4-A transponder.
Categories
Ham Satellite news

Kommande CAS-satelliter 2019

Följande nya CAS-satelliter är planerade under våren 2019. Enligt uppgift är de nu frekvenskoordinerade hos IARU.

CAS-7A
A Micro satellite 750L x 650W x 260H mm with a mass of 27 kg with the
following highlights:

  • H/T Linear Transponder
  • H/U Linear Transponder
  • HF CW Telemetry Beacon
  • V/U Linear Transponder
  • V/U FM Transponder
  • UHF CW Telemetry Beacon
  • UHF AX.25 4.8k/9.6kbps GMSK Telemetry
  • 3cm AX.25 1Mbps GMSK Image data transmission
  • On board camera
  • 3-axis stabilization system
  • Planning a launch on April 5th 2019 from Jiuquan into a 400x320km
    42.7 degree inclination orbit.
  • Sponsor: Chinese Amateur Satellite Group (CAMSAT)

CAS-7B
A spheriform spacecraft of 500 mm diameter with a mass of 3kg with the
following highlights:

  • UHF CW Telemetry Beacon
  • V/U FM Transponder
  • Spinning stabilization
  • Planning a launch on April 5th 2019 from Jiuquan into a 400x320km
    42.7 degree inclination orbit.
  • Sponsor: Chinese Amateur Satellite Group (CAMSAT)
Categories
Ham Satellite news

NEXUS januari 2019

Även NEXUS från Japan kom upp i januari 2019. Lite mer intressant för oss radioamatörer då den har en linjär transponder:

Uplink: 145.900-145.930 MHz (CW/LSB)
Downlink: 435.880-435.910 MHz (CW/USB)
CW/Data: 435.900 MHz & 437.075 MHz
Callsign: JS1YAV