160M

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=90 BGCOLOR="#FFFF00" TEXT="#080000"> <div> <A HREF="index.htm" TARGET="_top" TITLE="WE3C Home Page"><U><B>WE3C.com</B></U></A><B>                                                                               </B><FONT SIZE="1" COLOR="#111111" FACE="Arial" ><B>                                                                                                                                                                                 </B>  </FONT></div> <div> <A HREF="http://www.arrl.org/hamradio.html" TARGET="_top" TITLE="http://www.arrl.org/hamradio.html"><U>Learn about Amateur Radio</U></A>                                                                                                           <A HREF="id8.htm" TARGET="_top" TITLE="Contact Us"><U>Contact Us</U></A><B>  </B>                                                                                                                                    <A HREF="http://nist.time.gov/timezone.cgi?UTC/s/0/java" TARGET="_top" TITLE="http://nist.time.gov/timezone.cgi?UTC/s/"><U>UTC</U></A></div> <div> <A HREF="id3.htm" TARGET="_top" TITLE="Elmer"><U>Elmer</U></A>                                                                                                                                   <A HREF="http://www.weatherlink.com/user/we3c/index.php?view=summary&headers=0" TARGET="_top" TITLE="http://www.weatherlink.com/user/we3c/ind"><U> WE3C Weather Station</U></A>                                                                                                                          <A HREF="index.htm" TARGET="_top" TITLE="WE3C Home Page"><U>Home</U></A></div> <div> </div> </td> </tr><tr> <td valign="top" width=15.625% BGCOLOR="#FFCC66" TEXT="#080000"> <div> <B>Station</B></div> <div> <A HREF="id12.htm" TARGET="_top" TITLE="Station Design"><U>Design</U></A></div> <div> <A HREF="id13.htm" TARGET="_top" TITLE="160M"><U>160M</U></A></div> <div> <A HREF="id14.htm" TARGET="_top" TITLE="80M"><U>80M</U></A></div> <div> <A HREF="id17.htm" TARGET="_top" TITLE="40M"><U>40M</U></A></div> <div> <A HREF="id18.htm" TARGET="_top" TITLE="20M"><U>20M</U></A></div> <div> <A HREF="id19.htm" TARGET="_top" TITLE="15M"><U>15M</U></A></div> <div> <A HREF="id20.htm" TARGET="_top" TITLE="10M"><U>10M</U></A></div> <div> <A HREF="id22.htm" TARGET="_top" TITLE="RX Antennas"><U>RX Antennas</U></A></div> <bR> <div> <B>Resources</B></div> <div> <A HREF="http://comteksystems.com/" TARGET="_top" TITLE="http://comteksystems.com/"><U>Comtek Systems</U></A></div> <div> <A HREF="http://www.dxengineering.com/" TARGET="_top" TITLE="http://www.dxengineering.com/"><U>DX Engineering</U></A></div> <div> <A HREF="http://www.microham-usa.com/" TARGET="_top" TITLE="http://www.microham-usa.com/"><U>microHAM</U></A></div> <bR> </td> <td valign="top" height=390 BGCOLOR="#FFFF99" TEXT="#080000"> <bR> <div> <B>160 METERS</B></div> <bR> <div> <B>There are two antenna systems in use.  A low dipole at 30' and a Comtek 4SQR array.  Both are selectable and can be alternated for TX and RX (listen on one, transmit on the other).  Beverage antennas can be used for receive.</B></div> <bR> <div> <B> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="1" WIDTH="775" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 647 WIDTH="366"><div> <B>4SQR</B></div> <bR> <div> <B>The 4SQR is the primary 160M antenna in use.  It continues to be under construction for over three years.  The first testing of the system was with 3/4 wavelength RG-8X phase lines running above the driveway so cars could pass.  The system was so promising it was decided to install pipes under the driveway to allow the use of 1/4 wave 75 Ohm phase lines and for radial connections.</B></div> <bR> <div> <B>The Comtek phase system is used </B><B>with a microHam Stack Max switch</B><B>. The elements are quarter wave wire suspended from the High Tower guys and tram lines. Spacing is the conventional design as recommended by Comtek. Orientation is 65/155/245/335 degrees. All four verticals are connected to DX Engineering radial plates mounted at the base of bird house posts.  Additional wood extensions are used on the two verticals near the driveway to eliminate the possibility of vehicles catching the wire.</B></div> <bR> <div> <B>The 4SQR is bisected by the driveway with the NE and NW verticals on the north side.  When the driveway was cut, PVC pipe was installed for phase line and radial wire connections.</B></div> <bR> <div> <B>The Comtek phase box is mounted on the High Tower which is off center of the array. </B></div> <bR> <bR> </tD> <tD VALIGN=TOP><NOBR><div> <IMG SRC="07d26580.jpg" border=0 width="294" height="600" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> <B>NE Vertical</B></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 559 WIDTH="366"><div> <B>There are at least 60 external radials varying in length on each vertical.  The 160M radials interconnect with the 80M and 40M 4SQR radial systems.  There are areas that more radials will be added in the future to complete the system.</B></div> </tD> <tD VALIGN=TOP><NOBR><div> <IMG SRC="07f79150.jpg" border=0 width="377" height="533" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> <B>SW Vertical with DXE radial plate</B></div> </NOBR></tD> </tR> </TABLE></B></div> <bR> </td> </tr></table></body>