Archivos de la categoría AMSAT

High school students in Brazil building QO-100 ground station

Students 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/

Get The Details…

m5aka

AMSAT-UK

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Iceland’s IRA buys Qatar Oscar 100 and APRS equipment

The 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/

Get The Details…

m5aka

AMSAT-UK

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JAISAT-1 Telemetry Data Sought

Tanan 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/

Get The Details…

m5aka

AMSAT-UK

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CAS-7B to launch July 22

Alan BA1DU reports the Amateur Radio satellite CAS-7B (BP-1B) is expected to launch at 05:00 GMT on July 22, 2019

The launch vehicle Hyperbola-1 will run for 862.0206 seconds and then CAS-7B satellite will be deployed at 05:14:22.0206 GMT.

CAS-7B is a spheriform spacecraft of 500 mm diameter with a mass of 3kg
• CW Telemetry Beacon: 435.715MHz 20dBm
• V/U FM Transponder Downlink: 435.690MHz 20dBm, 16kHz bandwidth
• V/U FM Transponder Uplink: 145.900MHz 16kHz bandwidth

The launch from Jiuquan will be into a into a 300 km 42.7 degree inclination orbit.

Provisional TLE for tracking:

CAS-7B(BP-1B)
1 99999U 19203.21831019 -.00000000 00000-0 00000-0 0 00008
2 99999 042.7339 005.2478 0013606 285.8754 218.2911 15.94575752000011

CAS-7B information https://amsat-uk.org/2019/06/02/cas7b-bp1b-satellite/

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m5aka

AMSAT-UK

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TX Factor Show: Demonstration of QO-100 satellite operation

The TX Factor show visits the National Radio Centre at Bletchley Park where Noel Matthews G8GTZ and Graham Shirville G3VZV demonstrate how to set up and operate using the amateur radio transponders on the new geostationary satellite Qatar-Oscar-100 (QO-100).

Plus, Bob McCreadie G0FGX visits the folks at Icom UK with a full review of Icom’s long-awaited VHF / UHF all-mode transceiver the IC-9700.

Watch TX Factor Show – Episode 23 (TXF023) starting at 17:46

QO-100 information https://amsat-uk.org/satellites/geo/eshail-2/

Listen to QO-100 online with the AMSAT-UK / BATC WebSDR located at Goonhilly https://eshail.batc.org.uk/

Get The Details…

m5aka

AMSAT-UK

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