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+ <TITLE>The DXSpider User Filtering Primer v1.0: Introduction.</TITLE>
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+<H2><A NAME="s1">1.</A> <A HREF="filtering_en.html#toc1">Introduction.</A></H2>
+
+<P>The PacketCluster software written in the mid-80s by Dick Newell, AK1A, has
+served us well. Dick has moved on though and has not supported the software
+with updates etc for the last 10 years. Numerous PacketCluster "clones" have
+come and gone over the years, however there is one, called DX Spider, which
+provides a very similar user interface to that of AK1A, allows internet
+connections of users and node-to-node links, is actively supported by the
+author, and best of all is freeware. FRC has started to convert several nodes
+to Spider.</P>
+
+<P>One of the strengths of DX Spider is its very powerful and flexible DX spot
+filtering routines. These filters are totally different from anything we
+learned how to do with PacketCluster, and along with their power and
+flexibility comes somewhat of a learning curve. Hence the need for this
+primer.</P>
+
+<P>In the following sections, you will learn that you can filter DX spots by:</P>
+<P>
+<BLOCKQUOTE><CODE>
+<PRE>
+Frequency of the spot
+Mode of the spot
+Callsign of the spot (by state, country, zone, or specific callsign)
+Callsign of the spotter (by state, country, zone, or specific callsign)
+Callsign of the source node of the spot (by state, country, zone, or specific callsign)
+</PRE>
+</CODE></BLOCKQUOTE>
+</P>
+
+<P>With a few keystrokes, you can set up a filter for the CQ WW SSB contest, for
+example, that says that you only want to see SSB spots on the contesting bands.
+In the ARRL contest, it is simple to exclude spots for Ws and VEs. For example,
+the best all around one-line filter for users in the CQ WW SSB contest would be:</P>
+<P>
+<BLOCKQUOTE><CODE>
+<PRE>
+accept/spots on contesthf/ssb
+</PRE>
+</CODE></BLOCKQUOTE>
+</P>
+<P>This simply reads, "I want to get spots on the hf contesting bands on SSB only."</P>
+
+<P>Jim Samuels, W3BG, has put together this primer which not only provides complete
+details on the format for all the available filter commands, but also provides
+useful examples that can be simply typed in, without the need to learn the
+specifics.</P>
+
+<P>I would be remiss in not thanking Charlie Carroll, K1XX, who gave a lot of
+encouragement and mentoring, and provided some of the material in this primer.</P>
+
+<P>As always, your local sysop is available to help you out, if need be. Don't
+hesitate to contact him for assistance.</P>
+
+<P>73 - Dave N3RD</P>
+
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