Status of active satellites on amateur radio frequencies

Mike Rupprecht DK3WN 640

Mike Rupprecht DK3WN

One of the most frequently asked questions from newcomers to amateur satellites must be “Which satellites can I receive?”

Mike Rupprecht DK3WN has produced a summary of all active amateur radio satellites with frequencies and links to more detailed information. It is available at

Winter Issue of OSCAR News

E-members of AMSAT-UK can now download the PDF of the Winter edition of the OSCAR News magazine here. (As well as the earlier 2012 issues)

The paper edition is at the printers and should be posted to members within 2 weeks.

In this issue
• IARU Region 3 Chairman Michael Owen, VK3KI (SK)
• Amateur Radio Satellites – The First 25 Years
• G3CVI column “Haven’t got a callsign?”
• Low Noise Cavity Pre-Amplifier 70 cm EME and satellites by Domenico Marini, i8CVS
• Early Editions of Oscar News
• FUNcube Update
• Currently Active Spacecraft
• Shorts

The AMSAT-UK Membership year lasts for 12 months starting on January 1 each year.


AMSAT-UK FUNcube Mission Patch

AMSAT-UK FUNcube Mission Patch

Membership of AMSAT-UK is open to anyone who has an interest in amateur radio satellites or space activities, including the International Space Station (ISS).

E-members of AMSAT-UK are able to download OSCAR News as a convenient PDF that can be read on laptops, tablets or smartphones anytime, anyplace, anywhere. Join as an E-member at Electronic (PDF) E-membership

There are two rates for the paper edition to cover the extra postage costs:
Rest of the World (Overseas)

See a PDF sample copy of “Oscar News” at

Join AMSAT-UK using PayPal, Debit or Credit card at

E-members can download their copies of OSCAR News from

SpinSat Packet Radio Satellite To Launch Next Summer

SpinSat comprises a 19 inch diameter sphere, with a mass of 55 kg and 4 antennas equal distance around the equator. It is intended to be a tumbling satellite with single axis momentum wheel and multiple micro-thrusters.

It aims to test new technology micro-thrusters and teach high school students about satellite operations.

Secondary mission is a 9k6 GFSK UHF store and forward AX.25 packet radio system with 2 watts of RF output. Planned for a July 2013 launch from Kennedy Space Center into a 330 km 51.6 degree inclination orbit.

A downlink frequency of 437.230 MHz has been coordinated.

IARU Amateur Satellite Frequency Coordination Panel status page

.Oculus-ASR Microsatellite

Close-up of the Oculus-ASR in the Lab – Image credit Michigan Tech Aerospace Enterprise

Oculus-ASR is a 70 kg satellite 45.72 cm by 78.74 cm by 45.72 cm. It consists of two modules that are permanently attached. An octagonal module, referred to as the Oculus module, sits atop a square module, known as the ASR module.

The Michigan Technological University Aerospace Enterprise team are proposing to fly a V/U transceiver with an AX.25 packet downlink.

Continue reading

PRISM Available for Amateur Radio AX.25 Packet

Overview of the PRISM Ham Radio Service – Image Credit Tokyo University

The team that developed the PRISM satellite have announced it is being opened up for use by radio amateurs during afternoon passes.

The satellite was built by the University of Tokyo and launched on January 23, 2009 into a 660 by 670 km orbit. It uses AX.25 packet radio and can now be used by amateur radio operators as a store-and-forward message box.

Full details at