Two ISS SSTV events during July 29 – August 4

Two ISS SSTV events during July 29 – August 4

ISS SSTV image 5 received by Dave Boult G7HCE in Exeter on April 14, 2019ISS SSTV image received by Dave Boult G7HCE in Exeter on April 14, 2019

ARISS Russia is planning Slow Scan Television (SSTV) image transmissions on 145.800 MHz FM from the International Space Station.

Below is the scheduled for the planned activation of SSTV from the ISS. The first session is the routine MAI-75 activity that is only active for a few orbits. It appears that the most of the world (except N. America) will get a shot during the two day run. Some lucky operators along the east coast of North America should get a pass on July 29.

Inter-MAI-75 activity
(July 29) GMT 210/13:15 – SSTV activate
(July 29) GMT 210/21:25 – SSTV power down

(July 30) GMT 211/13:50 – SSTV power up
(July 30) GMT 211/19:30 – SSTV shutdown

The second event will be a world wide event running from August 1 through August 4 and the schedule is:

ARISS SSTV activity
(Aug 01) GMT 213/09:40 – SSTV activate
(Aug 02) GMT 214/14:00 – SSTV check
(Aug 04) GMT 216/18:15 – SSTV shutdown

This event uses a computer in the ISS Russian Segment, which stores images that are then transmitted to Earth using the ARISS amateur radio station located in the Service Module which employs the Kenwood TM D710E transceiver.

It is anticipated that the SSTV mode used will be PD-120.

Please note that SSTV events are dependent on other activities, schedules and crew responsibilities on the ISS and subject to change at any time. You can check for updates regarding planned operation at:
ISS Ham https://twitter.com/RF2Space
ARISS Status https://twitter.com/ARISS_status
ARISS SSTV Blog https://ariss-sstv.blogspot.com/
AMSAT Bulletin Board http://www.amsat.org/mailman/listinfo/amsat-bb

Read the MagPi article Pictures from space via ham radio
https://www.raspberrypi.org/magpi/pictures-from-space-via-ham-radio/

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

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m5aka

AMSAT-UK

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AMSAT-CE working on CESAR-1 FM transponder satellite

AMSAT-CE working on CESAR-1 FM transponder satellite

AMSAT-CE Logo

The Radio Club de Chile has announced the reactivation of the AMSAT-CE Foundation.

The Government of Chile has announced a plan to renew the Chilean Air Force Fasat Charlie satellite, along with promoting the construction of several micro and nano satellites.

This motivated the AMSAT-CE Foundation to propose that the CESAR-1 project of Chilean radio amateurs can be reactivated, modernized and completed, as part of the government plan.

Radio Club de Chile has supported AMSAT-CE since its begining and the Vice-President of Radio Club of Chile, José Tijoux CE3BCO, has just joined the Board of Directors of AMSAT-CE continuing and strengthening the space activity of Chilean radio amateurs .

The AMSAT-CE Foundation was created in 1993 and its first project is CESAR-1 which stands for CE (Chile) Satellite of Radiocommunication.

AMSAT-CE is designing and building five satellites, to be used by radio amateurs around the world, which will allow a series of scientific experiments in the field of digital communications, as well as gravimetric and orbitgraphic studies.

Of these five satellites, one will be the engineering prototype, three will be flight units, and the remaining one will be used to check or replicate on the ground the operation of the units that are in space.

The CESAR-1 satellite will be a  23 cm cube with a mass of about 12 kg and is planned to have five main experiments:

• A real-time digital transponder (Digipeater) using AX.25 at 9,600 kbps

• An electronic message box (Store and Forward) using AX.25 at 9.6 kbps)

• A 145 MHZ to 436 MHz band FM transponder

• A link to two terrestrial repeaters that will enable low power stations operating on 147 MHz FM to access the satellite

• An on-board GPS receiver, which will collect information for gravimetric and orbitgraphic research.

The orbit of CESAR-1 will be low, polar and heliosynchronous (about 800 km high).

AMSAT-CE
https://www.amsat-ce.org/
https://twitter.com/AmsatChile

Radio Club de Chile
http://www.ce3aa.cl/amsat-ce/
https://twitter.com/RCDECHILE

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m5aka

AMSAT-UK

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High school students in Brazil building QO-100 ground station

High school students in Brazil building QO-100 ground station

Students at Colégio Embraer Casimiro Montenegro FilhoStudents at Colégio Embraer Casimiro Montenegro Filho

High school students in Brazil are building a ground station for the amateur radio transponder on the QO-100 geostationary satellite as part of a STEM education project.

A group of eight students, from Colégio Embraer Casimiro Montenegro Filho in Botucatu state of São Paulo, are participating in all steps of the project with the help of teachers and amateur radio volunteers from LABRE/AMSAT-BR (Edson PY2SDR, Demilson PY2UEP, José PU2MJR).

The station consists of a 1.2m offset dish antenna, an Amiko L-104 LNBF, a home-made bias-t, a RTL-SDR receiver and SDRsharp software running on a dedicated computer. During the project students were exposed to several STEM topics related to radio communications, antennas, software defined radios, geostationary orbits as well as hand-on activities during the station assembly and configuration.

The students were able to successfully receive test transmissions in morse code kindly made by Roland PY4ZBZ and Fábio PY4AJ. The next step of the project is to introduce digital communication concepts, decode the BPSK engineering beacon and finally to add transmission capability to the station. In the near future, besides making contacts with other stations on QO-100, the students would also very much like to contact other schools and students in the QO-100 footprint.

Watch Report on the students QO-100 project
(you can enable YouTube Subtitles and then enable Auto-Translate)

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

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m5aka

AMSAT-UK

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Iceland’s IRA buys Qatar Oscar 100 and APRS equipment

Iceland’s IRA buys Qatar Oscar 100 and APRS equipment

Es'hail-2 Qatar-OSCAR-100The Board of Directors of Iceland’s nation amateur radio society, the IRA, has authorized the purchase of equipment to operate via the amateur radio transponder on the QO-100 (Es’hail 2) geostationary satellite.

A translation of the IRA post reads:

The Board of Directors of ÍRA recently agreed to authorize the Fund to purchase the following equipment from Microsat in Poland:

• Microsat WX3in1 Mini APRS Advanced Digipeater / I-gate (2 pcs.)
• PLXDigi – APRS Digipeater (2 pcs.)

Guðmundur Sigurðsson, TF3GS, submitted a request to the company on the APRS group. He says the equipment will seal the system and increase the quality and usability of the system, including utilizing the Motorola GM-300 terminal, which recently received eight such stations. The installation includes, among other things, installation of I-gate in Akureyri and Digipeater on Þorbjörn near Grindavík.

At the same meeting, the acquisition of QO-100 transverter from PE1CMO in the Netherlands was further authorized; “A complete transverter with a 25 MHz reference oscillator for the LNB, a downlink converter from 739 to 432 MHz and an upconverter from 432 to 2400 MHz, double filtered and a 20 Watt amplifier.” Ari Þórólfur Jóhannesson, TF1A, VHF manager of the company, negotiated a discount price for the company at Ham Radio show 2019 in Friedrichshafen.

The APRS equipment costs about 45 thous. krónur and the Oscar-100 equipment by 118 thous. krónur (with accessories and connectors). The stated price includes transportation and charges in Iceland.

Source IRA https://tinyurl.com/IcelandIRA

PE1CMO amateur radio products
http://hfprints.com/pe1cmo/rc_images/pe1cmo_products.pdf
https://twitter.com/Pe1Cmo

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

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m5aka

AMSAT-UK

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JAISAT-1 Telemetry Data Sought

JAISAT-1 Telemetry Data Sought

Tanan Rangseeprom HS1JAN with CubeSat modelTanan Rangseeprom HS1JAN with CubeSat model

Tanan Rangseeprom HS1JAN, Project Manager of the new 3U CubeSat JAISAT-1 has requested telemetry data from the 435.700 MHz beacon. JAISAT-1 launched on July 5 and carries an amateur radio 145 to 435 MHz linear transponder for SSB/CW communications.

On the AMSAT Bulletin Board Tanan posted:

RAST President Dr.Jakkree Hantongkom HS1FVL who had contacted German Orbital Systems (GOS) which had informed of object 2019-038F confirm JAISAT-1 satellite.

2019-038F
1 44419U 19038F 19190.66730395 .00001667 00000-0 10000-3 0 9996
2 44419 97.4914 152.5407 0020014 233.1737 126.7422 15.12176922 634

The JAISAT-1 Beacon signal on 435.700 MHz in GMSK Mobitex 4800 bps mode code for JAISAT-1 frames 1 in row 11
41 (0x29) – JAISAT UHF1
42 (0x2A) – JAISAT UHF2

Example of signals in this format can be found with the reception of signals from the satellite

The Radio Amateur Society of Thailand (RAST) and the JAISAT-1 Project Team are urgently seeking raw data that can be received from all packets worldwide. Please send raw data and KSS files to RAST by email at jaisatonetelegmail.com

Sincerely and with respect.

Tanan Rangseeprom, HS1JAN
Project Manager of JAISAT-1

RAST – The JAISAT-1 satellite is launched https://www.qsl.net/rast/

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m5aka

AMSAT-UK

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