ISS SSTV 145.800 MHz FM June 21-26

ISS SSTV 145.800 MHz FM June 21-26

http://ariss-sstv.blogspot.com/

The signal should be receivable on a handheld with a 1/4 wave whip. If your rig has selectable FM filters try the wider filter for 25 kHz channel spacing.

You can get predictions for the ISS pass times at https://www.amsat.org/track/

Useful SSTV info and links https://amsat-uk.org/beginners/iss-sstv/

Get The Details…

m5aka

AMSAT-UK

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MIR-SAT1 to deploy from ISS

MIR-SAT1 to deploy from ISS

The first amateur radio CubeSat from Mauritius is expected to be deployed from the International Space Station on June 22, 2021 at 10:55 GMT.

The IARU Satellite Frequency Coordination page reports:

MIR-SAT1 is a 1U CubeSat mission with the following objectives:

1. Verify the performance of the on-board subsystems by receiving telemetry from the satellite and establish communication to and from the satellite (command and control).
2. Collect images of Mauritius and the Mauritian EEZ for capacity, building, experiment and research.
3. Experimental communication with other islands via the satellite (for scientific and/or emergency purposes), through a Radio Amateur digipeater payload.
4. V/U 9600bps GMSK digipeater may be open for Radio Amateur communication worldwide when the satellite not used for all above.

A downlink on 436.925 MHz has been coordinated. Decoders for the amateur radio community and schools have been developed by Chris AC2CZ and Daniel EA4GPZ and will be available in the public domain on their WEB sites/Github, Links will be provided before launch on Tweeter, AMSAT-BB and Space Mauritius, see
https://spacemauritius.com/#telemetry

For the digipeater operation it will be necessary to evaluate the power available after deployment to decide on opening same 24/7 or on scheduled time.

IARU Satellite Frequency Coordination pages http://amsat.org.uk/iaru/

Follow 3B8DU on Twiiter at https://twitter.com/3b8du

Get The Details…

m5aka

AMSAT-UK

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IARU in the CEPT Working Groups

IARU in the CEPT Working Groups

https://cept.org/ecc/groups/ecc/wg-fm/fm-radio-amateur-fg/client/introduction/

In WG-SE technical spectrum sharing studies are taking place covering;

• Wireless power transfer including consideration of electric vehicle charging (WPT- EV).
• UWB radiodetermination in 116 – 250 GHz.
• Vehicular radar systems in 77 – 81 GHz.
• Security Scanners in the range 60 – 90 GHz.
• 23cm band RNSS coexistence (related to the WRC item and reported in detail elsewhere)
https://www.iaru.org/spectrum/iaru-and-itu/wrc-23/agenda-item-9-1-topic-b/

Amateur service frequency bands are within the scope of all these studies and fall under the remit of the IARU R1 SRLC
https://www.iaru-r1.org/about-us/committees-and-working-groups/srlc/

A summary report of the WG-SE meeting is at
https://www.iaru-r1.org/wp-content/uploads/2021/06/CEPT-WGSE88-April-2021-report.pdf

The WG-FM meeting is at
https://www.iaru-r1.org/wp-content/uploads/2021/06/WGFM-99-May2021-Report.pdf

Working Group FM Meeting 99 documents
https://cept.org/ecc/groups/ecc/wg-fm/client/meeting-documents/?flid=28918

Get The Details…

m5aka

AMSAT-UK

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CHESS will not have an amateur payload

CHESS will not have an amateur payload

Two CHESS CubeSats had been planned to carry amateur radio linear transponders, however, it was announced on June 10, 2021, there will not be any amateur payload on the satellites.

A translation of the press release reads:

The CHESS project management, due to funding constraints, had to move the project towards a commercial cubesat platform. Space is scarce on this new platform to accommodate another payload. Subsequently, there is no longer an opportunity to carry a ham radio transponder on board.

The CHESS project management has correctly decided not to use frequencies in the amateur satellite service and to use earth exploration or experimental UHF- and X- band frequencies.

The ham community, who assured the funding of the transponder, is very disappointed by this decision, but must accept it.

Such projects always carry risks of one partner changing its mind. That is what happened here.

Many thanks to all who have actively supported the transponder project, especially the AMSAT-UK and AMSAT-NL team.

AMSAT-HB announcement
https://www.amsat-hb.org/2021/06/10/chess-fliegt-ohne-amateurfunknutzlast/

January 2021 project announcement
https://amsat-uk.org/2021/01/14/chess-cubesat-constellation-funcube/

Get The Details…

m5aka

AMSAT-UK

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