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<H1><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Verdana; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: PT; mso-fareast-language: PT; mso-bidi-language: AR-SA"><FONT
face=Tahoma>Hans van de Groenendaal ZS6AKV </FONT></SPAN></H1>
<H1>Amateur satellite to investigate power line interference</H1>
<P><FONT face=Tahoma><STRONG>Hans van de Groenendaal ZS6AKV</STRONG> will be
giving a presentation on South Africa's first CubeSat at the AMSAT-UK Colloquium
in Guildford, England, July 31- Aug 1</FONT></P>
<P><FONT face=Tahoma>The world has experienced a long solar minimum which means
that ionospheric communication had been very limited and for a few years was
almost exclusively the domain of the commercial broadcasters running
Megawatts.</FONT></P>
<P><FONT face=Tahoma>HF radio communication is very susceptible to noise levels
that are created by power lines, electrical installations and overhead lines
used by trains and busses and power line telecommunication systems. If fact
today there are many installation that do not necessarily comply with
internationally agreed emission standards. With increasing solar activity
interference signals are propagated over large areas and will interfere with HF
communication.</FONT></P>
<P><FONT face=Tahoma>The important mission of the SA AMSAT CubeSat is to measure
the High Frequency noise levels over South Africa and report these measurement
back to a ground station for analysis and action to reduce these unwanted
signals. The information from the tiny satellite will identify the areas where
the HF frequency polluters are situated and will help in reducing or eliminating
the source.</FONT></P>
<P><FONT face=Tahoma>It is also hoped to include a 30 kHz linear transponder and
an Automatic Packet Reporting System (APRS) in the CubeSat.</FONT></P>
<P><FONT face=Tahoma> </FONT></P>
<P><FONT face=Tahoma>AMSAT-UK International Space Colloquium, <BR>Guildford July
31 - Aug 1<BR></FONT><A href="http://www.uk.amsat.org/colloquium/"
target=_blank><FONT
face=Tahoma>http://www.uk.amsat.org/colloquium/</FONT></A></P></BODY></HTML>