CAS-2A1 and CAS-2A2 Linear Transponder Amateur Radio Satellites

CAMSAT CAS-2 banner at the Friedrichshafen Ham Radio 2012 event

CAMSAT are building two micro-satellites CAS-2A1 and CAS-2A2 to be combined into a binary star system for amateur radio communication and education.

There will be a radio link between two satellites when the satellites are in suitable positions in their orbits, so that the amateur radio communication coverage can be extended. Both spacecraft are 25kg 270x270x250mm and are planning to launch from Taiyuan into a sun synchronous, 1000km apogee, 99.5 degree orbit.

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FITSAT-1 Update

FITSAT-1 plans to use LED’s to signal in Morse code

The amateur radio CubeSat FITSAT-1 (aka NIWAKA) carries an Optical Communications experiment that aims to write Morse Code across the night sky. The satellite is fitted with a bank of high power LEDs that will be driven with 200W pulses to produce extremely bright flashes that may be visible to the unaided eye.

FITSAT-1 was deployed from the International Space Station (ISS) at 15:44 UT on Thursday, October 4 along with F-1 and TechEdSat.

On Sunday, October 7 Takushi Tanaka JA6AVG provided this update:

We have received a lot of signal and telemetry reports from amsat members. All reports show FITSAT-1 starts working and sound. Thank you very much for your help.

We will examine movements, temperatures, and battery states of FITSAT-1 during these 10 days, and start experiments of 5.8GHz transmission and flashing LEDs.

I will announce the experiments on my web-page

As well as 437.250 MHz and 437.445 MHz (both +/- 10 kHz Doppler) this innovative satellite can also transmit on 5840.0 MHz (+/- 134 kHz Doppler).

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BUAA-SAT Amateur Radio Satellite



BUAA-SAT is a university micro-satellite project developed by the students of Beihang University (Beijing University of Aeronautics and Astronautics). It carries an amateur radio 435/145 MHz FM voice transponder.

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Plasma Powered Amateur Radio Satellite PROITERES Launched

The Japanese amateur radio satellite PROITERES was launched Sunday, September 9 at 0423 UT on PSLV-C21 from the Indian Space Research Organisation (ISRO) Satish Dhawan space centre. The satellite SPOT6 was on the same launch into a 654 km × 643 km, 98.28º inclination orbit. The rocket was fitted with the mini Redundant Strapdown Inertial Navigation System (mRESINS).

PROITERES was built by a team of students and faculty members of Osaka Institute of Technology (OIT) and the spacecraft aims to demonstrate powered flight using a Pulsed Plasma Thruster (PPT) engine.

Mike Rupprecht DK3WN reported hearing PROITERES, callsign JL3YZK, on 437.485 MHz at 07:36 UT.

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SPROUT amateur radio SSTV satellite to launch in 2014

SPROUT Amateur Radio SSTV Satellite

SPROUT, a 20 x 20 x 22 cm amateur radio nano-satellite with a mass of 7.1 kg, plans to launch with the L-band (1236.5 MHz/1257.5 MHz/1278.5 MHz) Synthetic Aperture Radar (SAR) satellite ALOS-2 on May 24, 2014. [Updated May 19, 2014]

SPROUT (Space Research On Unique Technology) was built by students from Nihon University and its objectives are:

1. Operation of satellite by radio amateurs. SPROUT downlinks the digi-talker sound recorded preliminary in the satellite, the digi-peater voice and packet uploaded by radio amateurs, Slow Scan TV (SSTV) and FM packet of the picture of the Earth taken by the satellite camera, which can be received by radio amateurs. SPROUT has two downlink frequencies and two uplink frequencies, and one uplink frequency and one downlink frequency will be open for radio amateurs. They can use the digipeater and packet and use one camera mounted on SPROUT and take the pictures by themselves, and downlink the pictures by SSTV.

2. Demonstration of the deployment of the combined membrane structure and verification of the design method of the structure SPROUT has a triangular membrane supported by two tubes like framework. They are folded and stored in the satellite before the launch. After the launch, the nitrogen gas is injected into the tubes in space, and they extend, so that the membrane deploys (called “combined membrane structure”).

3. Demonstration of attitude determination and control of a nanosatellite Will conduct the attitude determination experiment on orbit by using the sun sensors, gyros, and geomagnetic sensor, and conduct the attitude control experiment by using the magnetic torquers.

It carries two UHF/VHF radio systems – one for Telemetry, Tracking & Control (TTC) using CW, 1200 bps AFSK and 9600 bps GMSK AX.25 packet and one for amateur operations using 1200 bps AFSK AX.25 packet.

SPROUT plans to launch from the Tanegashima Space Center into a 628 km Sun Synchronous Orbit (SSO) on May 24, 2014.

Callsign: JQ1ZJQ
Size:     214x210x220 mm
Weight:   7.1 kg
Mode: 1200bps AFSK, 9600bps GMSK
CW downlink          437.525 MHz
FM packet downlink   437.525 MHz
Digi-peater uplink   437.600 MHz
Digi-talker downlink 437.600 MHz
SSTV downlink        437.600 MHz

Sprout Satellite English website

Sprout Satellite Japanese website

Nihon-Univ. Miyazaki Laboratory on Facebook

JE9PEL website

Read the Overview of the L-band SAR Onboard ALOS-2 here.

Italian Microsat to Deploy Amateur Radio Satellites

UniSat-5 with labelsThe Italian microsat UniSat-5 will itself deploy a number of additional amateur radio satellites. Among them should be the CubeSats PUCP-SAT-1, HumSat-D, Icube-1, Dove-4 (Planet Labs Inc. non-amateur) and PocketQubes Wren, Eagle-1 (BeakerSat), Eagle-2 ($50Sat), QB-Scout1. PUCP-SAT-1 intends to subsequently release a further satellite Pocket-PUCP.

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