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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link="#1E66AE" vlink="#1E66AE"><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Tom,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Great suggestions… nice to have a good “Elmer” in the group! This is a good reminder to us ole timers as well.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>73 de KJ4UW, Polk City<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> LakelandARC@yahoogroups.com [mailto:LakelandARC@yahoogroups.com] <b>On Behalf Of </b>Tom<br><b>Sent:</b> Tuesday, January 24, 2012 7:19 AM<br><b>To:</b> LakelandARC@yahoogroups.com<br><b>Subject:</b> [LakelandARC] Re: Mobile Antenna Expert needed<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> <o:p></o:p></p><div id=ygrp-mlmsg><div id=ygrp-msg><div id=ygrp-text><p>Hi George,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>While I don't claim to be an antenna expert, I can suggest some things to check.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>1) Does the antenna have a good electrical ground at the coax attachment point?<o:p></o:p></p></div><div><p class=MsoNormal>If you can remove the antenna from its mounting base and disconnect the radio end of the antenna cable from whatever it is connected to, you can then measure the electrical resistance between the point where the antenna mounts to its base and the vehicle chassis with an ohm meter. It should be 0 ohms.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>2) Have ypu checked both the center conductor and shield of the antenna cable for 0 ohms resistance, and infinite resistance between the center conductor and shield?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>3) Have you checked the antenna to make sure it is resonant at or near the frequency you are transmitting at using an antenna analyzer?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>4) Have you verified the radio's output power using an external power meter?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Other, more obscure things to check are mic gain and transmit modulation percentage.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I have all of the test equipment necessary to check these things if you need any of it.<o:p></o:p></p></div><div><p class=MsoNormal>I can also help you perform the tests if you want.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Good luck,<o:p></o:p></p></div><div><p class=MsoNormal>Tom<o:p></o:p></p></div><div><p class=MsoNormal>KJ4WFS<o:p></o:p></p></div><div><p class=MsoNormal><br>--- In LakelandARC@yahoogroups.com, "George" <ki4nbe@...> wrote:<br>><br>> Hello, I need a Mobile Antenna Expert installer.<br>> I'm wanting to go HF Mobile, have a Icom IC-706mkllg, Antenna is a CHAMELEON V2, the mobile is a 2005 Chevy Colorado LS 4x4 Z71.<br>> I have the antenna installed on the left (Driver side) 1/4 panel with a hood bracket. I have tried grounding it the best I know how. The tuner shows it tunes and swr show good. I hear everything there is to be heard but no one hears me. Can someone help with this?<br>> Is anyone up for the challenge?<br>> Please Help, I can come to you anytime.<br>> 73 George/KI4NBE<br>><o:p></o:p></p></div></div><div><p class=MsoNormal><span style='color:white'><o:p></o:p></span></p></div></div></body></html>