Tag Archives: APRS

Aug 2 2022

QSL cards and award for receiving SWSU satellites

CubeSat released from the ISS

CubeSat released from the ISS

On July 21 ten amateur radio CubeSats built by students at the Southwestern State University were deployed from the ISS. QSL cards and a diploma are available for receiving the SSTV, APRS and Voice messages

On his website Dmitry Pashkov R4UAB reports:

Small spacecraft (ICA), created on the YUZGU-55 platform, have been operating in real space flight for more than ten days. The cyclogram of work includes the transmission of voice messages, telemetry, call sign and SSTV images.

In view of the great interest in the space experiment “Radioskaf”, which is aimed at popularizing space research, Southwestern State University will be happy to send a QSL card to all radio amateurs who have successfully conducted a communication session with satellites.

To receive a QSL card, you need to send information: call sign, location, session date and time, carrier frequency, modulation type (APRS, FM-Voice, Robot36) and the result of a successful session (audio sample, telemetry text and image). The data is sent in the form of Applications for QSL. In the return letter you will receive the address where you need to send the card.

To obtain a diploma, you need to take 10 different SSTV images and voice messages, as well as decode 10 APRS telemetry messages (AFSK 1142 baud format) from any of the satellites, and apply for a Diploma

Satellite frequencies:

437.0000 MHz — SWSU-55 #8 — RS6S
437.0125 MHz — KETs#2 — RS12S
437.0250 MHz — KETs#1 — RS9S
437.0500 MHz — SWSU-55 #1 & R-390 #1 — RS10S
437.0750 MHz — SWSU-55 #2 — RS11S
437.0750 MHz — SWSU-55 #3 — RS1S
437.0870 MHz — SWSU-55 #4 — RS2S
437.0870 MHz — SWSU-55 #6 — RS4S
437.1000 MHz — SWSU-55 #5 — RS3S
437.1125 MHz — SWSU-55 #7 & R-390 #2 — RS5S

Source R4UAB
https://r4uab.ru/2022/08/02/diplomnaya-programma-mka-yuzgu-55/
https://twitter.com/R4UAB

Nader Omer ST2NH describes how to receive the satellites at
https://twitter.com/st2nh/status/1554223850329718785

Ten amateur radio CubeSats deployed from ISS
https://amsat-uk.org/2022/07/21/ten-amateur-radio-cubesats-deployed-from-iss/

Mar 21 2020

Amateur radio satellite spreads Fight Coronavirus message

LAPAN-A2 (IO-86)

LAPAN-A2 (IO-86)

Indonesia’s national amateur radio society ORARI reports the ham radio satellite LAPAN-A2 (IO-86) is being used to send a Fight Coronavirus message using APRS.

A translation of the ORARI post says:

The satellite spreads the text message “Stay Healthy, Stay at Home #LawanCorona”.

This was conveyed by Researcher of the Center for Satellite Technology, Sonny Dwi Harsono when contacted, Friday, March 20, 2020.

Sonny explained, this action was a form of support for government policies on social distancing. The policy encourages all of us to reduce activities outside the home and interactions with others. “So this message was sent by the LAPAN A2 satellite via the APRS (Automatic Packet Reporting System) beacon which was transmitted throughout Indonesia. APRS is a text based communication system for short messages such as SMS on mobile phones. But this APRS message can only be received through HT (Handie Talkie) which has the recipient of the APRS message,” he said.

Sonny explained, messages that have been disseminated can be received by anyone by setting the HT radio frequency to 145.825 MHz. To date corona’s message has been received by dozens of members of the Indonesian Radio Amateur Organization (ORARI) spread throughout Indonesia.

The dissemination of the message “Stay Healthy, Stay at Home #LawanCorona” , continued Sonny, was carried out starting March 20, 2020. For the time being the message dissemination was carried out on the APRS mission only. But it will try to spread the message one time at a LAPAN-A2 / LAPAN-ORARI track every 100 minutes. “Later if possible, we try to distribute 24 hours nonstop every 100 minutes under certain conditions. Currently we are discussing the technicalities. The messages from the government can also be disseminated via the LAPAN-A2 satellite, “he concluded.

Source ORARI https://tinyurl.com/IndonesiaORARI

Follow LAPAN-A2 https://twitter.com/lapansat

Jan 29 2020

AMSAT Argentina drifting Buoy on 145.825 MHz APRS

AMSAT Argentina LU7AA drfiting BuoyOn Thursday, January 30 at 1400 GMT AMSAT Argentina will deploy drifting Buoy on South Atlantic Seas that aims to transmit APRS on the satellite packet frequency of 145.825 MHz. WSPR will also be transmitted.

AMSAT Argentina report:

The APRS beacon, callsign LU7AA-11, will initially be on Argentina’s APRS frequency of 144.930 MHz but will change frequency to 145.825 MHz so that it can be digipeated by the amateur packet radio satellites.

The WSPR beacon will run 900 mW on 14095.6 kHz with the call sign LU7AA.

Release will be 100 km offshore Mar del Plata coast, seeking east aiming currents/winds.

Objective: Sea currents tracking and HF/VHF/SAT QRPp propagation tests.

AMSAT Argentina, LU7AA, will appreciate WSPR stations receiving/reporting 20m.

Further information and pictures at http://amsat.org.ar?f=buoy

Mar 30 2019

Ham radio APRS payload to launch April 1

PSLV-C45 orbital platform PS4

PSLV-C45 orbital platform PS4

An APRS payload from AMSAT INDIA will be flown on the PSLV-C45 mission expected to launch on April 1, 2019 at 03:57 GMT.

On the AMSAT Bulletin Board Nitin VU3TYG writes:

The payload will be powered on approximately over Sweden, Norway, Denmark, Finland, Poland and Moscow. We request stations at these locations to report the first signals on 145.825 MHz from the payload.

We also request the Amateur Radio fraternity worldwide to use the payload and Satgates to feed the traffic. More details about this unique project as well as the prelaunch TLE are available at
http://www.amsatindia.org/

73
Nitin [VU3TYG] Secretary, AMSAT INDIA
https://twitter.com/amsatindia

It is understood the PSLV-C45 mission will deploy 29 satellites. The 4th stage of the rocket (PS4) will become an orbital platform in a 485 km orbit hosting three payloads:
• Automatic Packet Reporting System (APRS) digipeater from AMSAT INDIA
• Automatic Identification System (AIS) from ISRO
• Advanced Retarding Potential Analyzer for Ionospheric Studies (ARIS) from the Indian Institute of Space Science and Technology (IIST).
https://www.isro.gov.in/launcher/pslv-c45-emisat-mission

Oct 20 2018

SSTV from Space for JOTA and Space Station Active

Serena Auñón-Chancellor KG5TMT

Serena Auñón-Chancellor KG5TMT

NASA astronaut Serena Auñón-Chancellor KG5TMT, who is currently on the International Space Station, was active on 145.800 MHz FM making contacts on Saturday, October 20 using the callsign NA1SS.
Watch a video at
twitter.com/supercazzola/status/1053659932292247552

The ISS packet radio digipeater on 145.825 MHz was active during Jamboree On The Air (JOTA) and Lauren 2E0HLR took advantage of this to demonstrate the reception of APRS packets from the Space Station to Scouts, see twitter.com/G0PEKand2E0HLR

Adil Namakoe YD3HNL has released a video of the Slow Scan TV pictures he received during Jamboree On The Air from the amateur radio satellite IO-86.

Watch IO-86 SSTV MODE #JOTA PASS 20102018

Adil Namakoe YD3HNL
https://twitter.com/adilnamakoe/
https://www.facebook.com/adil.namakoe

Aug 13 2018

JAXA to launch FM voice transponder satellite Diwata-2

Diwata-2 satellite

Diwata-2 satellite

The Philippine Diwata-2 satellite carrying an amateur radio FM transponder and APRS digipeater is expected to launch in October.

The Business Mirror reports:

The 50-kilogram satellite shall soon be sent into orbit by the Department of Science and Technology (DOST) through its partner, Japan Aerospace Exploration Agency (Jaxa).

It should be recalled that the DOST had the Philippines’s first microsatellite—the maiden Diwata-1 that was designed, developed and assembled in Japan by nine pioneering Filipino engineers and scientists along with their “sensei” (instructors) from the Tohoku University (TU) and Hokkaido University (HU).

Diwata-1 was launched into the International Space Station onboard the Orbital ATK’s Cygnus spacecraft on March 23, 2016. It was deployed from the ISS into her orbit on April 27 by the Japanese Experimental Module (JEM)—”Kibo” or Hope—around 400 km above Earth’s surface.

Now, two years and four months later, the government is about to unveil the second iteration of Diwata-1—named Diwata-2 targeted for launching onboard Jaxa’s H-IIA rocket from Tanegashima Island in Japan.

Ariston Gonzalez, a researcher/lead research and development engineer for PHL-Microsat at DOST-Asti, is quoted in the article as saying:

“All one has to do is tune in [a ham radio] to the frequency of Diwata-2 to send voice messages while the other party stands by to receive the voice message.”

“target use for ham radio [of Diwata-2] is for emergency situations wherein all commercial communications are down.”

“What Diwata-2 does is to serve as a relay or connecting point for two persons communicating with each other,” he pointed out.”

“One can also store messages on Diwata-2 that can be broadcasted repeatedly across and over the Philippines, such as prerecorded emergency messages in times of disasters, calamities and other kinds of emergency.”

The IARU has coordinated these frequencies for Diwata-2:
– 145.900 MHz downlink
– 437.500 MHz uplink

Read the full Business Mirror story at
https://businessmirror.com.ph/diwata-2-microsatellite-nears-completion-handover-to-jaxa/

Diwata-2 information
http://phl-microsat.upd.edu.ph/diwata2
https://www.facebook.com/PHLMicrosat