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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>We use to have that sort of trouble with an RVR 1.5GHz link receiver – two of the chips inside were old-style DIP plug-in packages, and over the seasons they would steadily ‘walk out’ of their sockets – presumably because of temperature cycling, perhaps aided by vibration from the ridiculously noisy fans in those units. I solved it by putting some tiny bits of neoprene sponge on the inside of the case where they exerted very gentle pressure on the backs of the ICs when the case was closed up.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>We also had a BW TX 600 going off intermittently a couple of summers ago, and before heading for the hills to sort it, noted that it was going off for a very regular short period before returning to service for a while and then repeating this, but the breaks were longer during the day, shorter in the morning and evening, with no problem at all at night. By now you may have guessed – the cooling fan had failed, and as the transmitter heated up its thermal protection was cutting in while it cooled down again. During the day it was heating up quicker and cooling down more slowly. I wish all intermittent faults were so straightforward to diagnose!<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'>Alex<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif;color:windowtext'> cma-l-bounces@mailman.commedia.org.uk [mailto:cma-l-bounces@mailman.commedia.org.uk] <b>On Behalf Of </b>Mike Davison<br><b>Sent:</b> 21 June 2017 11:58<br><b>To:</b> The Community Media Association Discussion List <cma-l@mailman.commedia.org.uk><br><b>Subject:</b> [cma-l] Fwd: Re: Warm weather hazard<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p>I second Ian's warning as we had a problem the other day. During the early hours of monday morning there was a sudden drop in modulation level and a definite reduction in audio quality of the output of the station. Checking the 1.5GHz link output cleared the studio of any problem so a trip to the transmitter site was necessary fearing the worst of a major item failure. Whilst monitoring the relative components of the VHF output and swinging out the wall mounted cabinet everything returned to normal so we concluded it was a connection problem and checking around it was found the baseband feed from the link receiver to transmitter had an un-locked BNC plug which was duly secured. We can only guess that expansion/contraction of the loose plug had eventually produced the intermittency but it was a sobering experience.<o:p></o:p></p><p>Mike Davison<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On 21/06/2017 07:57, Ian Hickling wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div id=divtagdefaultwrapper><p><span style='font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"inherit",serif;color:#1D2129'>Remember @DelBoy_ofah?</span><span style='font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#1D2129'><o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"inherit",serif;color:#1D2129'>Trigger:There's an old saying,look after your broom.</span><span style='font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#1D2129'><o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"inherit",serif;color:#1D2129'>Rodney:And your broom will look after you?</span><span style='font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#1D2129'><o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"inherit",serif;color:#1D2129'>Trigger:No Dave, just look after your broom.</span><span style='font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#1D2129'><o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"inherit",serif;color:#1D2129'>Remember your transmitter.</span><span style='font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#1D2129'><o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"inherit",serif;color:#1D2129'>We've had to deal with four in the last two weeks that had overheated.</span><span style='font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#1D2129'><o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"inherit",serif;color:#1D2129'>Pay it a visit - take a vacuum cleaner with you - and suck out the dust and fluff from the vents at the front and the fans at the back.</span><span style='font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#1D2129'><o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"inherit",serif;color:#1D2129'>Check that they're working and check the PA temperature.</span><span style='font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#1D2129'><o:p></o:p></span></p></div></div><div><div><p class=MsoNormal><span style='font-size:10.5pt;font-family:"inherit",serif;color:#1D2129'>A bit cheaper than going off air - and having to find £2500 for a new one?</span><span style='font-size:10.5pt;font-family:"Helvetica",sans-serif;color:#1D2129'><o:p></o:p></span></p></div></div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><p><span style='font-family:"Calibri",sans-serif'><o:p> </o:p></span></p><div id=Signature><div><p class=ecxmsonormal style='line-height:17.05pt;background:white'><span style='font-family:"Calibri",sans-serif;color:#222222'>Ian Hickling</span><span style='font-family:"Calibri",sans-serif;color:#444444'><o:p></o:p></span></p></div><p class=ecxmsonormal style='line-height:17.05pt;background:white'><span style='font-family:"Calibri",sans-serif;color:#222222'>Partner</span><span style='font-family:"Calibri",sans-serif;color:#444444'><br><br><a href="http://www.transplanuk.com/" target="_blank" id=LPNoLP><span style='color:#1155CC;text-decoration:none'><img border=0 id="ecx_x005f_x0000_i1025" src="https://ci4.googleusercontent.com/proxy/2SkDsnIzSZgRbNnNKBSiwxiFhFQWRGV55mTjVL23fulnJpstZmYxeKrrYefY4qxiSgkMrAETld64XINLXCsujE_zI5gAsQyWeCWvHixcrNYtar3Sij4YlVBgN2NSQ-n2DsgZvrnpWZlfwCQ=s0-d-e1-ft#http://www.transplanuk.com/wp-content/uploads/2014/07/transplan_UK_weblogo_190x60.png"></span></a><o:p></o:p></span></p><div><p class=ecxmsonormal style='line-height:17.05pt;background:white'><i><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#222222'>Office: 016 3557 8435 (07h to 22h GTS)</span></i><span style='color:#444444'><o:p></o:p></span></p></div><div><p class=ecxmsonormal style='line-height:17.05pt;background:white'><i><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#222222'>Car: 075 3098 0115 (only responds when driving)</span></i><span style='color:#444444'><o:p></o:p></span></p></div><div><p class=ecxmsonormal style='line-height:17.05pt;background:white'><i><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#222222'>6 Horn Street, Compton, NEWBURY, RG20 6QS</span></i><span style='color:#444444'><o:p></o:p></span></p></div></div></div><p class=MsoNormal><br><br><br><o:p></o:p></p><pre>_______________________________________________<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Reply - <a href="mailto:cma-l@commedia.org.uk">cma-l@commedia.org.uk</a><o:p></o:p></pre><pre><o:p> </o:p></pre><pre>The cma-l mailing list is a members' service provided by the Community Media Association - <a href="http://www.commedia.org.uk">http://www.commedia.org.uk</a><o:p></o:p></pre><pre>Twitter: <a href="http://twitter.com/community_media">http://twitter.com/community_media</a><o:p></o:p></pre><pre><a href="http://www.facebook.com/CommunityMediaAssociation">http://www.facebook.com/CommunityMediaAssociation</a><o:p></o:p></pre><pre>Canstream Internet Radio & Video: <a href="http://www.canstream.co.uk/">http://www.canstream.co.uk/</a><o:p></o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>Mailing list guidelines: <a href="http://www.commedia.org.uk/about/cma-email-lists/email-list-guidelines/">http://www.commedia.org.uk/about/cma-email-lists/email-list-guidelines/</a><o:p></o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre><o:p> </o:p></pre><pre>To unsubscribe or manage your CMA-L mailing list subscription please visit:<o:p></o:p></pre><pre><a href="http://mailman.commedia.org.uk/mailman/listinfo/cma-l">http://mailman.commedia.org.uk/mailman/listinfo/cma-l</a><o:p></o:p></pre></blockquote><p class=MsoNormal><o:p> </o:p></p></div></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br />
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