The IARU Amateur Satellite Frequency Coordination Panel has announced frequencies for the Shin’en2 linear transponder.
Shin’en2 is a 17 kg satellite measuring 490×490×475 mm built by students at Kagoshima University in Japan which will carry a 145 to 435 MHz linear transponder into a deep space orbit.
The aims of the mission are:
• To establish communication technologies with a long range as far as moon.
• To establish a new technology of the ultra-light-weight satellite. Proposing a WSJT 29dBm UHF downlink and a 29dBm 20 kHz linear transponder and a CW beacon all on UHF with a VHF uplink for the transponder. Note it is now understood the transponder will not be operational
The orbit will be quite different from the previous satellites. Shin-En2 will have an elliptic orbit around the Sun and travel to a deep space orbit between Venus and Mars. Its inclination will be almost zero, which means Shin-En2 will stay in the Earth’s equatorial plane.
The distance from the Sun will be between 0.7 and 1.3 AU. An Astronomical Unit (AU) is 149,597,871 km.
Shin’en2 IARU coordinated frequencies:
• 437.505 MHz CW beacon
• 437.385 MHz WSJT telemetry
Originally it was planned to fly an inverting SSB/CW transponder but it is now understood the transponder will not be operational
– 145.940-145.960 MHz uplink LSB
– 435.280-435.260 MHz downlink USB
Kagoshima University satellite development team
Shin’en2 English Website
ARTSAT2:DESPATCH – Art and Ham Radio in Deep Space