April 2011

<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="#006699" TEXT="#080000" bgproperties="fixed" background="015285a1erlcgo.png"> <div> <FONT SIZE="5" COLOR="#FFCC66" FACE="Arial" ><B>Bob F Burns G3OOU</B></FONT><B>     |     </B><A HREF="index.htm" TARGET="_top" TITLE="Bob F Burns G3OOU"><U><B>home</B></U></A></div> <div> back to  <A HREF="id60.htm" TARGET="_top" TITLE="Newsletters"><U><B>Newsletters</B></U></A></div> <div> </div> </td> </tr><tr> <td valign="top" width=150 BGCOLOR="#FFCC66" TEXT="#080000" background="013d4c00dkelyh.png"> <div> <A HREF="id27.htm" TARGET="_top" TITLE="March 2011"><U>March 2011</U></A></div> <div> <B>April 2011</B></div> <div> <A HREF="id23.htm" TARGET="_top" TITLE="May 2011"><U>May 2011</U></A></div> <div> <A HREF="id32.htm" TARGET="_top" TITLE="June 2011"><U>June 2011</U></A></div> <div> <A HREF="id24.htm" TARGET="_top" TITLE="July 2011"><U>July 2011</U></A></div> <div> <A HREF="id39.htm" TARGET="_top" TITLE="August 2011"><U>August 2011</U></A></div> <div> <A HREF="id40.htm" TARGET="_top" TITLE="September 2011"><U>September 2011</U></A></div> <div> <A HREF="id43.htm" TARGET="_top" TITLE="October 2011"><U>October 2011</U></A></div> <div> <A HREF="id70.htm" TARGET="_top" TITLE="November 2011"><U>November 2011</U></A></div> <div> <A HREF="id45.htm" TARGET="_top" TITLE="December 2011"><U>December 2011</U></A></div> <div> <A HREF="id50.htm" TARGET="_top" TITLE="January 2012"><U>January 2012</U></A></div> <div> <A HREF="id67.htm" TARGET="_top" TITLE="February 2012"><U>February 2012</U></A></div> <bR> </td> <td valign="top" height=390 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <I>April 2011</I></div> <div> <B>IN THIS ISSUE</B></div> <div> <B>      Club News</B></div> <div> <B>      Last Meeting</B></div> <div> <B>      Future Meetings and Events</B></div> <div> <B>      Members Challenge</B></div> <div> <B>      Members News</B></div> <div> <B>      Technical Snippetts</B></div> <div> <B>      Noticeboard - Wanted & for Sale</B></div> <div> <B>      News From Other Clubs</B></div> <bR> <div> <B>Meeting and Event Diary:</B></div> <div> <TABLE BORDER="2" CELLPADDING="1" CELLSPACING="1" WIDTH="643" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 38 WIDTH="74"><div> 01 Apr</div> </tD> <tD VALIGN=TOP WIDTH="22"><div> M</div> </tD> <tD VALIGN=TOP WIDTH="206"><div> <U>Air Traffic Management by Alan O'Donovan G8NKM</U></div> </tD> <tD VALIGN=TOP WIDTH="64"><div> 17 Apr</div> </tD> <tD VALIGN=TOP WIDTH="17"><div> R</div> </tD> <tD VALIGN=TOP WIDTH="225"><div> Kempton Park Radio & Electronics Rally</div> </tD> </tR> </TABLE></div> <div> E = External event, M = club meeting, R = Rally, T = Training course</div> <div> <B><U>Recent Event News</U></B></div> <div> <B><U>Extraordinary General Meeting - 4</U></B><B><U>th</U></B><B><U> March 2011</U></B></div> <div> This brief meeting was called to formally elect a Chairman and our volunteer was on holiday during the AGM in February. I am pleased to advise that Alan G8NKM was elected unopposed as Chairman for the current club year.</div> <div> If members have any thoughts on club strategy etc please pass them on to Alan.</div> <div> <B><U>4</U></B><B><U>th</U></B><B><U> March 2011 - Building and using the Ten-Tec 1330 by Martin M1MRB</U></B></div> <div> Martin writes:</div> <div> The project had to meet the following criteria: </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Be a complete kit, with all parts and a case.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">A kit with good performance</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">A cost effective kit which other listeners could also build and interact with us.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">A support group i.e. Yahoo group</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">A kit which I could operate portable</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Light weight for back packing.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Good user base</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Allow modifications at a later date</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">A manufacture or supplier, who would talk to us about this and other products.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Mode of operation</div> <div> Secondary reason for the project was for me to learn Morse Code. So why build another radio? I have radios that will work on these bands from other manufactures which work very well. </div> <div> The answer is the WOW factor. Build your own and operate it is a great feeling.</div> <div> After deciding to learn the Morse Code I chose 30 metres because it's not a contest band and you will not find SSB station on this band in most parts of the world. </div> <div> I could have built the Morse Code add on for my MKARS80, but to be honest I would not make the effort to learn the code and revert to SSB. </div> <div> There are a number of very good kits around and it was hard to find one which met the original criteria but I settled on the TenTec 1330.</div> <div> 4 models of the 1300 series QRP transceiver kit are available: </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">1320 for 20 meters</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">1330 for 30 meters</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">1340 for 40 meters</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">1380 for 80 meters. </div> <div> Ten-Tec began in 1968 with the release of very inexpensive "QRP" transceiver kits and they  thought it would be fun to revisit those roots. The low price and great receiver design make these QSK VFO-controlled transceivers a great choice. Get on the air from anywhere! Each kit is priced at only $ 119.00.</div> <div> <B>The finished product - top view:</B></div> <div> <B><IMG SRC="3cd20d80.jpg" border=0 width="288" height="216" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>Front view with a straight key for testing </B></div> <div> <IMG SRC="3cf20d80.jpg" border=0 width="288" height="216" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> Once your TenTec arrives you realise you have made a good choice. The package was well packed for shipping by the UK suppler and arrived undamaged. On unpacking the shipping box you find the whole kit is contained within a large plastic bag. This means things don't get lost during shipping.</div> <div> On opening the large plastic bag you will find an A5 manual which has a number of sections. The main sections are:</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Reference</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Assembly</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Useful information</div> <div> The Reference section covers the radio specification and parts list. There is also an overview of the various sections of the radio giving you a better understanding of how this radio works.</div> <div> The Assembly Section is split into eight phases. Each phase completes a section of the radio and concludes with a test to confirm your work is correct. Please read the manual before starting, this will save you time in the long run. I also made changes in pencil from supplementary sheets so that the information was in one place.</div> <div> The first thing you need to do is to unpack the radio and do an inventory to insure you have all the parts before building. The radio comes shrunk wrapped with all the components inside the case. Unwrap the case and using the Reference section of the manual, perform an inventory, sorting components ready for building. This will take you over an hour if done properly but this section is like laying down the foundations.</div> <div> At the end of each section you are given details of how to test your work. Sometimes you are given a number of different ways of achieving the same results depending on what equipment you own. If you have test equipment, use it. If not use the other options. </div> <div> This kit took me longer than it should have done for two reasons. </div> <div> Firstly I wanted to show you all how I built this radio and I had to follow the TenTec manual to the letter. </div> <div> Secondly I had some problems while building this kit which took some time to resolve. </div> <div> The following are a list of problems I had: </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">I suffered VFO instability and had trouble setting the tuning range. </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">I found that PNP transistor Q4 (2n5087) had gone funny. While it measured OK on the multimeter ohms test, there was no volts to the VFO. The device was removed and connected it to my transistor analyser. This said it was a common cathode diode matrix and not a transistor. I replaced this transistor with one from my junk box and this problem is solved.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">My radio had a major problem in the output stage. It was oscillating on transmit between 6Mhz and 73Mhs at random with an output power of 1 watt. After doing some research on the internet I found this is caused by L8,L9 and L10 being too close together. This causes feedback in the output stage and puts the PA into oscillation. Because this is a well known problem I was surprised TenTec have not modified the kit or offered instructions of how to solve this problem. I Removed L8,L9 and L10, rewound them with longer legs and mounted them above the PCB spreading the coils apart. This solved the self oscillation but its not pretty.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">The main tuning knob could have had a white line indicator and not left to the constructor to paint a line on this control. </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">I also think this kit has the wrong type of volume control. All controls in my kit were linear 10k pots with same part number in the manual. I think the volume control should have been a logarithmic pot which would have better control over the low volume range. </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">My kit is only outputting 1.5 watts. have followed the suggestions in the manual with no luck. </div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">The screws seen to be of poor quality, I have stripped the treads on a number of them. Replacements cost very little but this is a pain.</div> <div> <B>Future Club Meetings and Events</B></div> <div> <B><U>1</U></B><B><U>st</U></B><B><U> April 2011 - Air Traffic Management by Alan O'Donovan G8NKM and a Club Discussion</U></B></div> <div> The next meeting will consist of two parts - a formal talk and a club discussion. </div> <div> 1. Alan writes:</div> <div> "<I>Friday's presentation will be on Air Traffic Management with an emphasis on the technical systems that support air traffic operations within UK airspace. Time permitting, an overview of the following topics will be covered:</I></div> <div> <I><IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">ground/air communication</I></div> <div> <I><IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">radar</I></div> <div> <I><IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">information systems"</I></div> <div> 2. The remaining half an hour or so will be devoted to an initial discussion on future club projects. Alan G8NKM and Rufus M6RUF have been considering possible subjects so please come along with some of your own ideas to add to the pot.</div> <div> <B><U>Members News</U></B></div> <div> <B>Members subscriptions for 2011</B> are now overdue (£9.00) so please ensure that you pay them promptly. A tear-off renewal slip is included at the end of this newsletter. Please hand it in or send it in with your subscription for 2011 as Victor is updating his club database.</div> <div> <B><U>Club Net</U></B></div> <div> Colin M0XED is now operational on 2m FM and is putting out a surprisingly good signal considering his location at the bottom of a high hill and the use of a temporary aerial installation. Victor is now back on 2m FM having repaired his base station rig and is putting out his customary S8-9 signal.</div> <div> Recently we have had problems with QSOs starting on S21, S22 and S23 before we appear at 20:00. Members need to listen around the adjacent channels to ascertain if we have had to move channel to avoid causing unnecessary QRM to other users.</div> <div> What we need now are more club members on the net. Does anyone need any assistance in this respect?</div> <div> <B><U>Technical Snippetts</U></B></div> <div> <B>Martein PA3AKE</B> has a web site containing the results of his work over the last few years on a receiver front end based on improvements to the H Mode mixer, first conceived by Colin G3SBI. Martein has now published the initial designs for a receiver back end. His web site at <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.xs4all.nl/~martein/pa3ake/hmode/index.html" TARGET="_top" TITLE="http://www.xs4all.nl/~martein/pa3ake/hmo"><U><U>http://www.xs4all.nl/~martein/pa3ake/hmode/index.html</U></U></A></FONT> is well worth a read. He has also opened a new purchasing list for people interested in buying some or all of the basic building blocks for his published designs.</div> <div> <B>Constructors</B> who have problems making stable VFOs can breathe a sigh of relief as there are digital solutions now available at reasonable costs. The SI570 and SI571 from Silicon Labs are programmable crystal controlled oscillators covering 10MHz to 1.4GHz. One supplier offering a product based on these ICs in kit or built formats is Kanga US at <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.kangaus.com/si570_project.htm" TARGET="_top" TITLE="http://www.kangaus.com/si570_project.htm"><U><U>http://www.kangaus.com/si570_project.htm</U></U></A></FONT> and Cumbria Designs supply a VFO stabiliser - see k/ <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.cumbriadesigns.co.u" TARGET="_top" TITLE="http://www.cumbriadesigns.co.u"><U><U>http://www.cumbriadesigns.co.uk/</U></U></A></FONT> for more details. The ICs are available from SDR Kits - see <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.sdr-kits.net/" TARGET="_top" TITLE="http://www.sdr-kits.net/"><U><U>http://www.sdr-kits.net/</U></U></A></FONT></div> <div> <B><U>Miscellaneous</U></B></div> <div> <B>GB2RS Broadcast Schedule</B></div> <div> This may be downloaded from the RSGB web site at: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.rsgb.org/news/docs/" TARGET="_top" TITLE="http://www.rsgb.org/news/docs/"><U><U>http://www.rsgb.org/news/docs/</U></U></A></FONT></div> <div> <B>Club Newsletters by Email</B></div> <div> At least two club members did not receive their last newsletter by email despite there being no bounces or error messages. This may be another example of ISPs pulling the plug temporarily on each other due to the extremely high volumes of spam. If you do not receive your emailed newsletter by a week before the club meeting please let me know as soon as possible. If you receive your newsletter by post and it has not arrived in time please contact Victor.</div> <div> <B>Crossword</B></div> <div> <IMG SRC="3d35a4c0.png" border=0 width="346" height="332" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> A newsletter challenge with a difference - thank you to Colin M0XED for his contribution of a crossword competition.</div> <div> Across</div> <div> 1     Temperature compensating component (10)</div> <div> 6     Smooth repetitive oscillations (4, 5)</div> <div> 7     Microphone (abbrev) (3)</div> <div> 8     Type of projector (11)</div> <div> 10     Part of a CW QSO (3)</div> <div> 12     Area of land or ground (7)</div> <div> 14     Relative increase in radiation at the maximum point expressed as a value in dB above a standard (4)</div> <div> 15     Unit of measurement (2)</div> <div> 16     Peripheral interface controller (abbr) (3)</div> <div> 17     Continuous wave (abbrev) (2)</div> <div> 18     Across & 9 down. Used with an oscilloscope (7, 5)</div> <div> 23     British brand of multimeter (3)</div> <div> 25     Across & 22 down. Nomogram (5, 5)</div> <div> 26     Item of test equipment (abbrev) (3)</div> <div> 27     Capacitor (arch) (9)</div> <div> 28      See 21 down.</div> <div> Down</div> <div> 2     Delay in returning to zero magnetisation when a magnetic field is removed (10)</div> <div> 3     _____ wave meter (8)</div> <div> 4     Property of a material which opposes the flow of current (10)</div> <div> 5     _____ per second (arch) (6)</div> <div> 7     Alternative unit for 19 down (3)</div> <div> 9     See 18 across</div> <div> 11     Transfers electrical energy through inductive coupling (11)</div> <div> 13     Perceived by the ear (5)</div> <div> 19     SI unit of conductance and admittance (7)</div> <div> 20     Five level code for digital data transmission (6)</div> <div> 21     Down & 28 across. Item of test equipment (5, 6)</div> <div> 22     See 25 across</div> <div> 24     Metric prefix for 10(-12) (4)</div> <div> Bring your entry along to the next meeting and check your results.</div> <div> <B><U>Notice Board - Wanted and For Sale</U></B></div> <div> The Notice Board is for all club members to use so if you have one or more items that you wish to buy or sell then please send in the details. The current list of items may be viewed at: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.g3oou.co.uk/" TARGET="_top" TITLE="http://www.g3oou.co.uk/"><U><U>http://www.g3oou.co.uk/</U></U></A></FONT> in the "Notice Board - Wanted and For Sale" section.</div> <div> <B><U>Wanted:</U></B></div> <div> <B>a) SWL club member </B>looking for a VHF multimode receiver covering at least 144-146MHz. Contact Victor on 020 8653 2946 or Bob on 01737 552170.</div> <div> <B><U>For Sale:</U></B></div> <div> <B>Mode Components</B> has a website at <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.modecomponents.co.uk/" TARGET="_top" TITLE="http://www.modecomponents.co.uk/"><U><U>http://www.modecomponents.co.uk/</U></U></A></FONT> and can be contacted on 0121 554 5157 or 07984 071369.</div> <div> Email at <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:sales@modecomponents.co.uk" TARGET="_top" TITLE="mailto:sales@modecomponents.co.uk"><U><U>sales@modecomponents.co.uk</U></U></A></FONT> or</div> <div> <A HREF="mailto:modecomponents@yahoo.com" TARGET="_top" TITLE="mailto:modecomponents@yahoo.com"><U><U>modecomponents@yahoo.com</U></U></A></div> <div> <B>Sycom</B> run by Robin G3NFV supplies a range of electronic components & new/second hand equipment. The web site can be found at: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.sycomcomp.co.uk/" TARGET="_top" TITLE="http://www.sycomcomp.co.uk/"><U><U>http://www.sycomcomp.co.uk/</U></U></A></FONT></div> <div> <B>JAB Electronic Components, </B>PO Box 5774, Birmingham, B44 8PJ supply a wide range of electronic components and can be contacted on 0121 682 7045 or by email at: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:jabdog@blueyonder.co.uk" TARGET="_top" TITLE="mailto:jabdog@blueyonder.co.uk"><U><U>jabdog@blueyonder.co.uk</U></U></A></FONT></div> <div> 73</div> <div> <IMG SRC="3d135330.jpg" border=0 width="53" height="51" ALIGN="BOTTOM" HSPACE="0" VSPACE="0">G3OOU</div> <bR> <div> <TABLE BORDER="2" CELLPADDING="1" CELLSPACING="1" WIDTH="586" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 19 WIDTH="576"><div> Diary of External Events</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 WIDTH="576"><div> 10 Apr - Cambridgeshire Repeater Group Annual Rally</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 76 WIDTH="576"><div> Foxton Village Hall, Hardman Road, Foxton, Cambridge CB22 6RN. TI S22, TS, B&B, C, DF, OT 10.00, £2. Contact Lawrence, M0LCM, 01223 654880, e-mail rally2011cambridgerepeaters.net </div> <div> Visit website: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.cambridgerepeaters.net" TARGET="_top" TITLE="http://www.cambridgerepeaters.net"><U><U>www.cambridgerepeaters.net</U></U></A></FONT></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="576"><div> <B>17 Apr - Kempton Park Radio & Electronics Rally</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 WIDTH="576"><div> Kempton Park Racecourse. Open 10:00. Parking, trade stands, catering, disabled facilities. Contact <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:info@radiofairs.co.uk" TARGET="_top" TITLE="mailto:info@radiofairs.co.uk"><U><U>info@radiofairs.co.uk</U></U></A></FONT></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 ><NOBR><div> <B>12 Jun - East Suffolk Wireless Revival (Ipswich Radio Rally)</B></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 76 WIDTH="576"><div> The Orwell Crossing Lorry Park, A14 Eastbound, Nacton, Ipswich, IP10 0DD. CBS, B&B, SIG, LRC, RSGB Bookstall, GB4SWR HF station, C, CP, TI S22. OT 9.30, £1. Contact Steve, M1ACB on 07711 329624 </div> <div> Visit website: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.eswr.org.uk" TARGET="_top" TITLE="http://www.eswr.org.uk"><U><U>www.eswr.org.uk</U></U></A></FONT></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="576"><div> <B>19 Jun - Newbury Radio Rally and Boot Sale</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 95 WIDTH="576"><div> Newbury Showground, next to M4 J13. Big display area of amateur radio stations, exhibitions, special groups, clubs and societies. TI S22 (V44), free CP, OT 9.00, £2, TS, C, DF, FM, SIG. Sellers have access from 8am and pitches cost £10. Details from rallynadars.org.uk </div> <div> Visit website: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.nadars.org.uk" TARGET="_top" TITLE="http://www.nadars.org.uk"><U><U>www.nadars.org.uk</U></U></A></FONT></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="576"><div> <B>06 Nov - </B><B>Kempton Park Radio & Electronics Rally</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="576"><div> <B>20 Nov - </B><B>CATS Bazaar 10am - 1pm</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 39 WIDTH="576"><div> <B>A full list of rallies and events may be found at </B><FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.rsgb.org/events/index.php" TARGET="_top" TITLE="http://www.rsgb.org/events/index.php"><U><U>http://www.rsgb.org/events/index.php</U></U></A></FONT></div> </tD> </tR> </TABLE></div> <div> <B>News from other Clubs</B></div> <div> <B>Club Secretaries</B> - please send your meeting programs to Bob G3OOU. Our newsletter is now published during the third week of each month and closes for editorial input at the end of the second week. Due to differing publication dates and short lead times it is sometimes difficult to include other clubs' specific events although we will endeavour to do so if advised in time.</div> <div> <B>Chelmsford Amateur Rado Society (CARS)</B></div> <div> Secretary Martyn Medcalf G1EFL Tel: 01245-469008. First Tuesday of each month at MASC, Beehive Lane, Great Baddow, Chelmsford, CM2 9RX. Essex. UK. Web: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.g0mwt.org.uk/" TARGET="_top" TITLE="http://www.g0mwt.org.uk/"><U><U>www.g0mwt.org.uk</U></U></A></FONT></div> <div> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="1" WIDTH="306" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 57 ><NOBR><div> 05 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> "Home Built Transmitter as used on Radio Caroline" by CARS Member, Oliver Swain.</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 03 May</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> "A Beginners Guide to Astronomy" by John Greenwood</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 57 WIDTH="58"><div> 07 Jun</div> </tD> <tD VALIGN=TOP WIDTH="241"><div> "G5RV Night" to commemorate his Birthday 100 years ago by CARS Members</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 57 WIDTH="58"><div> 05 Jul</div> </tD> <tD VALIGN=TOP WIDTH="241"><div> "G5RV Night" to commemorate his Birthday 100 years ago by CARS Members</div> </tD> </tR> </TABLE></div> <div> <B>Coulsdon (CATS) </B>2nd Monday every month, 8pm at St Swithun's Church Hall, Grovelands Road, Purley. Contact: Steve Beal G3WZK on 01883 620730 or <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:secretary@catsradio.org" TARGET="_top" TITLE="mailto:secretary@catsradio.org"><U><U>secretary@catsradio.org</U></U></A></FONT></div> <div> Web site: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.catsradio.org/" TARGET="_top" TITLE="http://www.catsradio.org/"><U><U>http://www.catsradio.org/</U></U></A></FONT></div> <div> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="1" WIDTH="306" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 11 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> WSPR by Walter Blanchard, G3JKV</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 09 May</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> Provisional - Talk on motorcycle trip to Himalayas by M0NAT</div> </tD> </tR> </TABLE></div> <bR> <div> <B>Dorking & District Radio Society</B></div> <div> Meetings at the Friends' Meeting House, Butterhill, South Street, Dorking RH4 2LE starting at 7.45pm.</div> <div> Contact: Garth Swanson G3NPC on 01737 359472 or <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:G3NPC@swansons.org.uk" TARGET="_top" TITLE="mailto:G3NPC@swansons.org.uk"><U><U>G3NPC@swansons.org.uk</U></U></A></FONT></div> <div> Web site: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.ddrs.org.uk/" TARGET="_top" TITLE="http://www.ddrs.org.uk/"><U><U>http://www.ddrs.org.uk</U></U></A></FONT></div> <div> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="1" WIDTH="306" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 26 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> PIC Chips by Paul Swarman G0ODP</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 24 May</div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> Personal Challenge evening</div> </NOBR></tD> </tR> </TABLE></div> <div> <B>Echelford Amateur Radio Society</B></div> <div> Secretary Tony Collier 2E1IDK on 01932 564099 - e-mail <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:tony@woodroad12.fsnet.co.uk" TARGET="_top" TITLE="mailto:tony@woodroad12.fsnet.co.uk"><U><U>tony@woodroad12.fsnet.co.uk</U></U></A></FONT></div> <div> Web site: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://beam.to/ears" TARGET="_top" TITLE="http://beam.to/ears"><U><U>http://beam.to/ears</U></U></A></FONT></div> <div> Meets on 2nd and 4th Thursday of each month.</div> <div> Phone for details.</div> <div> <B>Mitcham & District Amateur Radio Society</B></div> <div> Secretary: Mike Knott G0WCR, 76 New Barnes Avenue, Mitcham, Surrey, CR4 1LF.</div> <div> Tel: 020 8764 4716</div> <div> Phone for details</div> <div> <B>Reigate Amateur Transmitting Society</B></div> <div> Secretary: Tim Trew G8JXV</div> <div> Tel: 01293 775278. Email: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:rats@qsl.net" TARGET="_top" TITLE="mailto:rats@qsl.net"><U><U>tim.trew@btinternet.com </U></U></A></FONT></div> <div> Meeting on 3rd Thursday of each month, 7:30pm at RNIB Redhill College, Philanthrophic Road, Redhill.</div> <div> <B>South East Essex Amateur Radio Society (SEARS)</B> Contact: Norman, M0FZW (Hon Sec) </div> <div> Tele: 01268 692776, </div> <div> Email: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:secretary@southessex-ars.co.uk" TARGET="_top" TITLE="mailto:secretary@southessex-ars.co.uk"><U><U>secretary@southessex-ars.co.uk</U></U></A></FONT></div> <div> Web: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.southessex-ars.co.uk/" TARGET="_top" TITLE="http://www.southessex-ars.co.uk/"><U><U>http://www.southessex-ars.co.uk/</U></U></A></FONT> </div> <div> Meetings: 8pm 2nd Weds each month at: South Benfleet Primary School, High Rd, SS7 5HA.</div> <div> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="1" WIDTH="306" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 13 Apr</div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> The Sky at Night by Bruce, G1JJS</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 14 May</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> My experiences of SOTA by Dave, G4UVJ</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 WIDTH="58"><div> 08 Jun</div> </tD> <tD VALIGN=TOP WIDTH="241"><div> Essex CW Group Presentation by Jonathon Michener</div> </tD> </tR> </TABLE></div> <div> <B>Surrey Radio Contact Club (SRCC)</B> 1st and 3rd Monday every month, 8pm at Trinity School, South Croydon. Contact John Kennedy G3MCX 020 8688 3322 or <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:secretary@g3src.org.uk" TARGET="_top" TITLE="mailto:secretary@g3src.org.uk"><U><U>secretary@g3src.org.uk</U></U></A> </FONT>for more details.</div> <div> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="1" WIDTH="306" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 04 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> AGM</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 09 May</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> Construction Evening</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 WIDTH="58"><div> 06 Jun</div> </tD> <tD VALIGN=TOP WIDTH="241"><div> Construction Contest</div> </tD> </tR> </TABLE></div> <div> <B>Sutton & Cheam RS.</B> 3rd Thursday every month, 8pm at Sutton United FC, The Borough Sports Ground, Gander Green Lane, Sutton. Contact John Puttock G0BWV on 020 8644 9945 or email <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:infoREMOVEME@scrs.org.uk" TARGET="_top" TITLE="mailto:infoREMOVEME@scrs.org.uk"><U><U>info@scrs.org.uk</U></U></A></FONT>  Web: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://scrs.org.uk/" TARGET="_top" TITLE="http://scrs.org.uk/"><U><U>http://scrs.org.uk/</U></U></A></FONT></div> <div> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="1" WIDTH="306" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 57 ><NOBR><div> 21 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> 'Simple Junk Box Antennas' by Martin Butler M1MRB & Denis Noe MØNDJ</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 19 May</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> Annual General Meeting</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 39 WIDTH="58"><div> 23 Jun</div> </tD> <tD VALIGN=TOP WIDTH="241"><div> 'Susy Radio' by John Stockley G8MNY - <B>note change of date</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 WIDTH="58"><div> 21 Jul</div> </tD> <tD VALIGN=TOP WIDTH="241"><div> TBC</div> </tD> </tR> </TABLE></div> <div> <B>Wimbledon. </B>2nd and last Friday every month, 8pm at Martin Way Methodist Church, Buckleigh Avenue, Merton Park, SW19 9JZ</div> <div> Contact Jim Bell, M0CON on 020 8874 7456</div> <div> Web site: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.gx3wim.org.uk/wiki/index.php/Main_Page" TARGET="_top" TITLE="http://www.gx3wim.org.uk/wiki/index.php/"><U><U>http://www.gx3wim.org.uk/wiki/index.php/Main_Page</U></U></A></FONT> </div> <div> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="1" WIDTH="306" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 25 Mar</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> Radio Topics -</div> <div> Andrew Maish G4ADM</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 08 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> Surplus Equipment Sale</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 29 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> No meeting</div> </tD> </tR> </TABLE></div> <div> ________________________________________</div> <div> <B>Items For Sale</B></div> <div> Sensible bids are invited for the remaining items from the shack of silent key G4KBY:</div> <div> <TABLE BORDER="2" CELLPADDING="1" CELLSPACING="1" WIDTH="675" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="241"><div> <B>Description</B></div> </tD> <tD VALIGN=TOP WIDTH="78"><div> <B>Price</B></div> </tD> <tD VALIGN=TOP WIDTH="248"><div> <B>Description</B></div> </tD> <tD VALIGN=TOP WIDTH="83"><div> <B>Price</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 57 WIDTH="241"><div> KW1000 HF bands linear - fairly heavy but in reasonable condition</div> </tD> <tD VALIGN=TOP><NOBR><div> £250 ono</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="248"><div> Telequipment Model 43 dual beam oscilloscope - working but needs a good clean as very dusty inside</div> </tD> <tD VALIGN=TOP WIDTH="83"><div> £5</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 57 WIDTH="241"><div> Sangamo Weston E772 1000ohms per volt analyser with leads (old and large testmeter)</div> </tD> <tD VALIGN=TOP WIDTH="78"><div> £10</div> </tD> <tD VALIGN=TOP><NOBR><div> 1mA FSD meter with 3 inch dial</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="83"><div> £1 each</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 57 WIDTH="241"><div> Original HRO receiver printed manual with an S Meter conversion article.</div> </tD> <tD VALIGN=TOP WIDTH="78"><div> £5</div> </tD> <tD VALIGN=TOP WIDTH="248"><div> Two small soldering irons, 15W and 25W, both mains powered</div> </tD> <tD VALIGN=TOP WIDTH="83"><div> £1 each</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 76 WIDTH="241"><div> 1 bag of pre-packed ICs, 1 bag of RS Components prepacked, 1 bag of identified ICs and transistors</div> </tD> <tD VALIGN=TOP WIDTH="78"><div> £5</div> </tD> <tD VALIGN=TOP WIDTH="248"><div> Pye fist microphone with 5pin connector</div> </tD> <tD VALIGN=TOP WIDTH="83"><div> £2</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 WIDTH="241"><div> A Future Electronics transistor tester FTC 401</div> </tD> <tD VALIGN=TOP WIDTH="78"><div> £5</div> </tD> <tD VALIGN=TOP><NOBR><div> A 250v-12v power supply unit.</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="83"><div> £5</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 57 WIDTH="241"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="57" ALIGN="bottom" WIDTH="241" HSPACE="0" VSPACE="0"></tD> <tD VALIGN=TOP WIDTH="78"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="57" ALIGN="bottom" WIDTH="78" HSPACE="0" VSPACE="0"></tD> <tD VALIGN=TOP WIDTH="248"><div> 2 two-way and three way data transfer switch boxes - useful project boxes</div> </tD> <tD VALIGN=TOP WIDTH="83"><div> £2 each</div> </tD> </tR> </TABLE></div> <bR> <bR> </td> </tr></table></body>