144 and 432 MHz mixed mode helix antennas

You can use the free SUWS Web Software Defined Radio (WebSDR) via your PC or Laptop to receive the International Space Station (ISS) and the many amateur radio satellites transmitting in the 145.800 – 146.000 MHz band. Martin Ehrenfried G8JNJ has equipped the...

Shin-En2 to carry Mode J linear transponder

Shin-En2 is a 17 kg satellite measuring 490×490×475 mm built by students at Kagoshima University in Japan that 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...

$4.00 Ham Radio Satellite Antenna

In this video Dave Tadlock KG0ZZ describes a $4 amateur radio dual band 145 / 435 MHz satellite antenna. Details of the antenna are at http://www.amateurradio.bz/4_dollar_satellite_antenna.html Watch the $4.00 Ham Radio Satellite Antenna video [youtube...

LituanicaSAT-1 FM transponder test

The LituanicaSAT-1 team are carrying out a test of the FM transponder and they request reports. [Latest update added April 23 1839 UT] Dear amateur satellite radio operators, A courtesy notice that LituanicaSAT-1 FM transponder test is in progress. Today we performed...

Book now for International Space Colloquium

The AMSAT-UK International Space Colloquium 2014 is open to all. It will be held on July 25-27, 2014 at the Holiday Inn, Guildford, GU2 7XZ, United Kingdom. The Colloquium attracts an international audience from across Europe as well as North America and the Middle...