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<H1>70 MHz beacon upgraded to PSK31</H1>
<P><FONT face=Tahoma>On May 7, 2010 the <STRONG><FONT
size=4>70.031MHz</FONT></STRONG> <STRONG>G4JNT/P</STRONG> personal beacon on
Bell Hill, Dorset, <STRONG>IO80UU</STRONG> was replaced with a cleaner improved
unit sending PSK31.</FONT></P>
<P><FONT face=Tahoma>The new one has much improved spurious outputs and is based
around an Analog Devices AD9852 Direct Digital Synthesiser chip clocked at
200MHz. <STRONG>It transmits the beacon telemetry using PSK31 on a frequency of
70.031MHz</STRONG> (in the personal beacon portion of the band).</FONT></P>
<P><FONT face=Tahoma>It is intended primarily for relaying telemetry from the
GB3SC microwave cluster, which operate from 2.3 to 47 GHz, but also serves as a
propagation beacon and has been received via Sporadic E at considerable
distances.</FONT></P>
<P><FONT face=Tahoma>Further details of the new 70MHz telemetry beacon are
at<BR></FONT><A href="http://www.scrbg.org/New70MHzTelemetryBeacon.pdf"
target=_blank><FONT
face=Tahoma>http://www.scrbg.org/New70MHzTelemetryBeacon.pdf</FONT></A></P>
<P><FONT face=Tahoma>South Coast Repeater and Beacon Group<BR></FONT><A
href="http://www.scrbg.org/" target=_blank><FONT
face=Tahoma>http://www.scrbg.org/</FONT></A></P>
<P><FONT face=Tahoma>SCRBG Donations Page<BR></FONT><A
href="http://www.scrbg.org/donate/" target=_blank><FONT
face=Tahoma>http://www.scrbg.org/donate/</FONT></A></P>
<P><FONT face=Tahoma>UK Microwave Group (UKuG)<BR></FONT><A
href="http://www.microwavers.org/" target=_blank><FONT
face=Tahoma>http://www.microwavers.org/</FONT></A><BR></P></BODY></HTML>