JAISAT-1 Telemetry Data Sought

Tanan Rangseeprom HS1JAN with CubeSat model

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.

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 jaisatonetele<at>gmail.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/

CAS-7B to launch July 25

CAS-7B / BP-1B satellite schematic diagram

CAS-7B / BP-1B satellite schematic diagram

Alan BA1DU reports the Amateur Radio satellite CAS-7B (BP-1B) is expected to launch at 05:00 GMT on July 25, 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 3 kg
• CW Telemetry Beacon: 435.715 MHz 20 dBm
• V/U FM Transponder Downlink: 435.690 MHz 20 dBm, 16 kHz bandwidth
• V/U FM Transponder Uplink: 145.900 MHz 16 kHz bandwidth

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

Provisional TLE for tracking:

1 99999U 19206.21831019 -.00000000  00000-0  00000-0 0 00001
2 99999 042.7339 008.2068 0013606 285.8754 218.2911 15.94575754000011

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

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/

Amateur radio satellites launch on SpaceX STP-2 mission

Falcon Heavy STP-2 - credit SpaceX

Falcon Heavy STP-2 – credit SpaceX

Amateur radio satellites lifted off at 0630 GMT on June 25, 2019 on the SpaceX Falcon Heavy STP-2 from LC-39A, Kennedy Space Center, Florida.

Among the satellites (see links for IARU coordinated frequencies) are:

• Prox 1 ( Nanosat 7)
• LightSail B – (Deploying from Prox 1)
• PSat-2
• BRICSat-2
• CP-9
• Oculus-ASR
• E-TBEx-a
• E-TBEx-b

144 and 1240 MHz Bands – RSGB information

RSGB volunteers continue to be engaged with IARU and Ofcom on WRC matters including the 144 MHz and 1240 MHz bands as well as WRC-19 Agenda Items in CEPT-PTD (50 MHz, WPT, 5GHz) and CEPT-PT1 (24/47 GHz).

At UK level, RSGB are members of the Ofcom IFPG groups that consider these matters.

The RSGB has updated their special focus page with the latest documents and CEPT meeting minutes. See Proposed WRC-23 Agenda Items at

June 21 – RSGB Update on 144MHz and 1240 MHz band threats


CEPT Project Team A, responsible for some aspects of the CEPT position for WRC-19, met in Prague from June 17-21. The meeting minutes are available for download

Regarding the 1240-1300 MHz band the minutes say:

The representative of the European Commission (EC) stated that, RNSS systems are global by nature, and that the radio amateur service is allocated in all regions. Once RNSS receivers (including Galileo E6 receivers) are deployed ubiquitously, the number of interference cases coming from radio amateur emissions will increase significantly and represent an important burden to Administrations, unless clear guidelines are available in order to drive the amateur community towards an appropriate usage of their allocation.

For these reasons, the EC believes that the French proposal of a WRC-23 agenda item is essential in order to complement the work being started within CEPT, and to find a sustainable solution for all parties. Also, the EC considers that WRC-23 is the right time for a decision enabling the better regulation of the RNSS-amateur coexistence at international level, as Galileo will start providing freely available high accuracy services in the 1260-1300 MHz band on a global basis from 2020.

The EC noted that some of the 7 Administrations which objected to the French contribution are open to consider a revised version of the proposal, and therefore believes that relevant support may be achievable at CPG level, following further discussions until end August.

Regarding the 144 MHz band the minutes say:

The representative of the IARU stated that, the IARU views with grave concern the element of the WRC-23 agenda item proposal 1.6 in the AI10 ECP, on studies towards a possible new allocation to the aeronautical mobile service in the band 144-146 MHz. This band is an important and the only globally harmonised primary allocation to the amateur and amateur satellite services in the VHF range. Examination of the RR below and above the 144-146 MHz range suggests that alternative proposals could be developed that could provide further spectrum for the aeronautical applications without impacting on this amateur service spectrum. The proposal provides no justification for addressing this band and the IARU believes that sharing with airborne systems is likely to be difficult and will lead to constraints on the development of the amateur and amateur satellite services in this band.

Meeting minutes https://cept.org/Documents/cpg-pt-a/52280/pta-19-105_minutes-pta-7

See the WRC-23 Agenda Items update issued by IARU Region 1 June 21

Some background on previous CEPT WGFM and CPG/PTA discussions on the 1240-1300 MHz band

16-year-old ham radio satellite builder in the press

FossaSat-1 PocketQube Satellite

FossaSat-1 PocketQube Satellite

16-year-old radio amateur Julián Fernández EA4HCD was interviewed by the newspaper El Mundo Chronicle about his FossaSat-1 PocketQube satellite.

A Google translation of an extract of the article says:

…at the age of seven someone told him about the International Space Station and, since then, he has not stopped fantasizing about the idea of a voyage safe from gravity. “Unlike the children of previous generations who dreamed of being astronauts without knowing very well how to get it, I have grown up with all the information at my fingertips,” he tells Crónica.”

Now Julián Fernández [EA4HCD], already as CEO of Fossa Systems, has just launched a crowdfunding campaign through GoFundMe with which he intends to finance his latest talent: a mini-satellite (the smallest in Spain and the third in the world) that will allow the Internet access throughout the world. “It is not designed to provide Wi-Fi hotspots,” jokes this student of 4th of ESO, “but to try to democratize access to telecommunications in the environment of the internet of things.” To meet its objective, and in order to reduce launch costs, the last two years have been devoted to miniaturizing the size of the satellite. “My prototype will take the internet to rural areas, many of them without coverage of any kind, so that monitoring data can be sent at no cost”.

Read the English version of the full article at https://tinyurl.com/El-Mundo-FossaSat-1

The Fossa team is made up of international members from all over the world working together thanks to the magic of the internet https://fossa.systems/about-us/

The IARU have coordinated a frequency of 436.700 MHz for the 100 mW downlink which is capable of 183 Hz Shift FSK RTTY 45 baud ITA2 and LoRa 125 kHz B/W 180 bps, details at

The ITU API/A is available here.

Fossa say they have signed a orbital launch contract with UK company Alba Orbital and a launch on a Electron rocket is expected in the 4th quarter of 2019