MORE INFORMATION IS COMING SOON!

These permanent web addresses will be documented and sent to the Radio Amateurs of Canada (RAC), the Innovation Science and Economic Development Canada (ISED), the International Amateur Radio Union (IARU), and the International Telecommunication Union (ITU).

AMATEUR RADIO LICENSING

MIST and the PRESET mission share a key goal: the training of skilled amateur radio operators. MIST operates using Radio Amateur Canada's VA3MCM and VE3NEU club call signs, generously sponsored by team members. Through hands-on training, students master radio operations within national and international regulations, including spacecraft control from Earth stations. Becoming an operator entails passing an exam administered by an accredited examiner, leading to an amateur radio certificate with Basic, Basic with Honours, or Advanced credentials. As of April 2024, PRESET has 9 members with their Amateur Radio Certification.

TELEMETRY

MIST's telemetry efforts for the NEUDOSE and PRESET missions are powered by SatNOGS, a vital resource in the amateur radio community. SatNOGS features a global network of satellite ground stations, a machine-readable crowdsourced satellite information database, and comprehensive documentation for ground station setup and integration. PRESET uses SatNOGS' flexible and scalable platform for satellite communication. With a strong emphasis on Low Earth Orbit (LEO) satellites and support for VHF and UHF bands, SatNOGS enables us to collect telemetry data and other crucial information from our satellite. The modular design and networked architecture of SatNOGS allow for remote access and adaptable station configurations, allowing for ideal integration into our telemetry operations. This aligns with MIST's commitment to open-source practices and collaborative initiatives within the amateur radio community.

Check out:

• NEUDOSE SatNOGS, located here.

• One of our first correctly detected packets from the NEUDOSE mission, located here. 

• SatNOGS Dashboard, located here.

• More links will follow as PRESET progresses!

PACKET STRUCTURE

The packet structure for PRESET telemetry includes fields such as dest_callsign, src_callsign, ctl, pid, unix_timestamp, and various status indicators for components like EPS, CDH, comms, and antennas. These fields are similar to those found in the decoder field on the SatNOGS database for NEUDOSE, located here. The decoder field lists information about the packet structure used by PRESET for telemetry transmission and reception. Additionally, there are more details on the SatNOGS webpage about NEUDOSE, including its transmit/receive bands.

RADIO PARAMETERS

Uplink (Earth to PRESET):

Function: Telecommand

Band: 2 m Very-High Frequency (VHF) Amateur Radio Band (144 — 146 MHz)

Carrier Frequency: TBD MHz, Bandwidth: 20 kHz

Emission Designator: 20K0F1DCN

Demodulation Method: Non-Coherent FSK

Forward Error Correction Coding: Conv. R = 3/4, K = 7 & R.S. 

Receiver Noise Temperature (Estimate): 998.9 Kelvin

Uplink Backup (Earth to PRESET):

Function: Telecommand

Band: 70 cm Ultra-High Frequency (VHF) Amateur Radio Band (435 — 438 MHz)

Carrier Frequency: TBD MHz, Bandwidth: 25 kHz

Emission Designator: 25K0F1DCN

Demodulation Method: Non-Coherent FSK

Forward Error Correction Coding: Conv. R = 3/4, K = 7 & R.S. 

Receiver Noise Temperature (Estimate): 297.5 Kelvin

Downlink - Telemetry (PRESET to Earth):

Function: Beacon, Telemetry, and Scientific Data Transmission

Band: 70 cm Ultra-High Frequency (UHF) Amateur Radio Band (435 — 438 MHz)

Baud Rate: 9600 BPS

Beacon Frequency: Once per minute

Beacon Structure: AX.25 Packet

Carrier Frequency: TBD MHz, Bandwidth: 25 kHz

Emission Designator: 25K0F1DCN

Demodulation Method: Non-Coherent FSK

Forward Error Correction Coding: Conv. R = 3/4, K = 7 & R.S. 

EIRP: 31.4 dBm

Downlink - Morse Beacon (PRESET to Earth):

Function: Beacon

Band: 70 cm Ultra-High Frequency (UHF) Amateur Radio Band (435 — 438 MHz)

Baud Rate: 15 WPM

Beacon Frequency: Once per 3 minutes

Beacon Structure: Morse Code

Carrier Frequency: TBD MHz, Bandwidth: 400 Hz

Emission Designator: 400HA1A

EIRP: 31.4 dBm

Link Budgets:

VHF (145 MHz): Click Here*

UHF (435 MHZ): Click Here*

Morse Code: Click Here*

Decoder Fields: To be added to the PRESET SATNogs Database when prepared.

*The link budgets were developed from Jan King’s template, AMSAT-IARU_Link_Model_Rev2.5.5.xls, located on the AMSAT UK webpage