HADES-SA

HADES-SA SSDV on Windows


[HADES-SA SSDV image using IQ_file]







   


HADES-SA SSDV and CODEC2 utility

More SSDV coming, new sat announced over on Telegram. Hello everyone,

The launch of our satellite HADES-SA/SpinnyONE is scheduled for 30 Mar 2026.
on SpaceX's Transporter-6 mission. The satellite will be inside SEOPS'OTV, so
deployment may take a few days. We will keep you updated on the website and here.
With HADES-SA/SpinnyONE we are testing something different from previous FM/FSK
repeaters. Its mission will focus on digital modes, specifically text messages
via FSK, CODEC2 voice, and SSDV images.

To achieve this, the satellite includes a small BBS where users can upload their
callsign along with a short text message and optionally, a CODEC2 voice recording,
which will be stored and retransmitted periodically. The BBS can store up to five
text messages and five CODEC2 messages, each up to 15 seconds long. The satellite
will also transmit SSDV images, taken with a camera and software provided by
Spinning Around, in gratitude for which the satellite also carries the nickname
SpinnyONE. The camera will capture images of a new deployment mechanism being
tested, as well as a small commemorative mission plaque, where Earth is expected
to be visible in many of the shots.

The satellite includes a CODEC2 recording with a text from Don Quixote and an
SSDV image stored in Flash, which will be sent when there are no new CODEC2
recordings for voice, or in case the camera fails or the photo is not processed
correctly, for SSDV. Each SSDV image has an identifier from 0 to 255. The Flash
image carries identifier 0. The bandwidth to be used is very small: only 3.6kHz
The frequencies and modes are as follows:

HADES-SA / SpinnyONE
145.875 MHz, Modes: FSK 200 bps
436.875 MHz downlink, Modes: FSK 200-1600 bps (including CODEC2 and SSDV).

Initially 800 bps, and from the third month, alternates every 30 days between
800 bps and 200 bps. The Andy UZ7HO Soundmodem software (genesis800zip)
is already available on the website to demodulate and decode telemetry.
(AMSAT-EA_HADES-SA_SpinnyONE_SSDV_utilities.zip)

This software will also save received SSDV and CODEC2 frames to disk, which
can later be combined using the tools we've uploaded to the website, also for
Windows, which basically consist of placing the frame files in a directory
and running a .bat file.

73,
Felix EA4GQS (AMSAT-EA)
https://www.amsat-ea.org/proyectos/


[HADES-SA SSDV images using CSV_file downloaded from SatNOGS]

image ID: D6,D7,DA
SAIC.exe (C)JA3TDW

https://x.com/Ja3Tdw/status/2040227082903716044
https://www.eonet.ne.jp/~ja3tdw/