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<H1>New Bent Element Yagi technology tested</H1>
<P><FONT face=Tahoma><STRONG>FORCE 12</STRONG> have produced the first Bent
Element LFA2 series Yagi by <STRONG>G0KSC</STRONG>.</FONT></P>
<P><FONT face=Tahoma>The version pictured below is an 8.9 metre (29.4 feet)
7-element LFA2 (Loop Fed Array) which has the reflector end sections bent
towards the loop which increases F/B and shows improvements in bandwidth/SWR.
</FONT></P>
<P><FONT face=Tahoma><IMG style="WIDTH: 401px; HEIGHT: 289px" height=283
src="http://www.g0ksc.co.uk/images/stories/7el-bent-el2.jpg" width=500
border=1><IMG style="WIDTH: 375px; HEIGHT: 292px" height=350 alt=""
src="http://www.qrz.com/hampages/c/s/g0ksc/6el-G0KSC-LFA.jpg"
width=526></FONT></P>
<P><FONT face=Tahoma>With an SWR of less than 1.1:1 from 50 to 50.5 MHz, over
12.8dBi forward gain and a massive 43dB F/B, this antenna is set to be a winner
when it goes into production and carries all of the low-noise properties of all
LFA Yagis so will be as popular as ever in city and noisy locations.</FONT></P>
<P><FONT face=Tahoma>This is the first in a line of LFA2 Yagis, other models
include directors as well as the reflectors having bends within their length to
enhance performance. In addition, some models have more than one reflector too.
By bending the ends of the reflector towards the loop feed system, F/B is
increased by a massive 5dB over a straight reflector. In addition, SWR response
becomes much flatter.</FONT></P>
<P><FONT face=Tahoma>The Amateur Antenna industry (commerical and otherwise) has
proved achieving good gain levels are easy with the 30 year old software
packages still being used for 'computer optimisation'. However, the very latest
software modelling technology is required in order to see accurate results from
an antenna such as the LFA2. </FONT></P>
<P><FONT face=Tahoma>Gain is easy to achieve, however, maintaining gain while
achieving flat SWR, good F/B, good Bandwidth and maintaining stability when in
wet and adverse weather conditions is not commonplace, even with the most
reputable of well-known Ham antenna providers. <BR>If you want it all, you need
an LFA!</FONT></P>
<P><FONT face=Tahoma>Watch the FORCE 12 website for further models and release
dates of this and other pioneering LFA designs or give <STRONG>Mark
N5WEB</STRONG> a call at FORCE 12 for more infromation. </FONT><A
href="http://www.force12inc.com/" target=_blank><FONT
face=Tahoma>www.force12inc.com</FONT></A><FONT face=Tahoma>. </FONT></P>
<P><FONT face=Tahoma>If you would like to build this or a similar antenna
yourself, all the build information you need is available for free at the G0KSC
antenna site, </FONT><A href="http://www.g0ksc.co.uk/" target=_blank><FONT
face=Tahoma>www.g0ksc.co.uk</FONT></A></P></BODY></HTML>