March 2010

<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="id43.htm" TARGET="_top" TITLE="October 2009"><U>October 2009</U></A></div> <div> <A HREF="id70.htm" TARGET="_top" TITLE="November 2009"><U>November 2009</U></A></div> <div> <A HREF="id45.htm" TARGET="_top" TITLE="December 2009"><U>December 2009</U></A></div> <div> <A HREF="id50.htm" TARGET="_top" TITLE="January 2010 "><U>January 2010 </U></A></div> <div> <A HREF="id67.htm" TARGET="_top" TITLE="February 2010 "><U>February 2010 </U></A></div> <div> <B>March 2010</B></div> <div> <A HREF="id28.htm" TARGET="_top" TITLE="April 2010"><U>April 2010</U></A></div> <div> <A HREF="id23.htm" TARGET="_top" TITLE="May 2010"><U>May 2010</U></A></div> <div> <A HREF="id32.htm" TARGET="_top" TITLE="June 2010"><U>June 2010</U></A></div> <div> <A HREF="id24.htm" TARGET="_top" TITLE="July 2010"><U>July 2010</U></A></div> <div> <A HREF="id39.htm" TARGET="_top" TITLE="August 2010"><U>August 2010</U></A></div> <div> <A HREF="id40.htm" TARGET="_top" TITLE="September 2010"><U>September 2010</U></A></div> <bR> </td> <td valign="top" height=390 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <I>March 2010</I></div> <div> <B>In this Issue:</B></div> <div> <B>          Club News</B></div> <div> <B>          Recent Meetings</B></div> <div> <B>          Future Meetings and Events</B></div> <div> <B>          Spring Sale</B></div> <div> <B>          Members & Club News</B></div> <div> <B>          Technical Snippetts</B></div> <div> <B>          Computer Corner</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="727" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 28 Feb 10</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="17"><div> R</div> </tD> <tD VALIGN=TOP WIDTH="238"><div> Rainham Radio Rally</div> </tD> <tD VALIGN=TOP><NOBR><div> 02 Apr 10</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="17"><div> M</div> </tD> <tD VALIGN=TOP WIDTH="271"><div> TBA</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 05 Mar 10</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="17"><div> M</div> </tD> <tD VALIGN=TOP><NOBR><div> A History of Power Supplies part II.</div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> 11 Apr 10</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="17"><div> R</div> </tD> <tD VALIGN=TOP WIDTH="271"><div> Cambridgeshire Repeater Group Annual Rally</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 07 Mar 10</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="17"><div> R</div> </tD> <tD VALIGN=TOP WIDTH="238"><div> Bournemouth Radio Society 21<FONT SIZE="1" COLOR="#000000" FACE="Arial" >st</FONT> Annual Sale</div> </tD> <tD VALIGN=TOP><NOBR><div> 18 Apr 10</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="17"><div> R</div> </tD> <tD VALIGN=TOP WIDTH="271"><div> West London Radio & Electronics Show</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 07 Mar 10</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="17"><div> R</div> </tD> <tD VALIGN=TOP WIDTH="238"><div> Cambridge & District Amateur Radio Club Rally</div> </tD> <tD VALIGN=TOP WIDTH="75"><div> 14-16 May 2010</div> </tD> <tD VALIGN=TOP WIDTH="17"><div> R</div> </tD> <tD VALIGN=TOP WIDTH="271"><div> Dayton Hamvention</div> </tD> </tR> </TABLE></div> <div> E = External event, M = club meeting, R = Rally</div> <div> <B><U>Recent Event News</U></B></div> <div> <B><U>5</U></B><FONT SIZE="1" COLOR="#000000" FACE="Arial" ><B><U>th</U></B></FONT><B><U> February 2010 - Annual General Meeting</U></B></div> <div> The meeting was well attended and we were pleased to see one visitor and a few members who normally have some difficulty in attending meetings - thank you for making a special effort.</div> <div> <B>The Club Discussion</B> commenced with your Chairman summarising the problems that have faced the club over the last few years and stating that much more support is required in order for the club to continue in operation. It was disappointing to note that only 10 survey forms were returned, despite a first class SAE being sent to members. Some of the forms included significant detail which will be reviewed by the committee in the near future.</div> <div>  Members were then invited to voice their own ideas and opinions on the club's future. Suggestions included:</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">More emphasis on electronics and computing, not just amateur radio</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Provision of amateur radio license training courses</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Holding an open day during the summer</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Advertising via the church, schools and other local organisations.</div> <bR> <div> <B>AGM</B>: The minutes of the 2009 AGM were read and approved and officer's reports were read and approved. </div> <div> Our Treasurer advised that a small loss was made on each monthly meeting but that the club was relatively well funded from donations and sale income in the past that had been invested. He was not therefore proposing to increase either the meeting fee or the annual subscription this year but would review the finances before the end of 2010 and advise accordingly. One or two members suggested that an increase should be made for 2011 and this was noted.</div> <div> Ceri, our auditor has some outstanding work to complete on the accounts because of late receipt of the December bank statement and these will be presented to members at an EGM for approval.</div> <div> <B>The motion in agenda item 7</B> was carried by a clear majority and your Chairman will review the club support and activities before the end of 2010.</div> <div> <B>Election of Officers:</B> Chairman - Bob Burns G3OOU, Treasurer - Robert Kelso M3RJK, Secretary - position not filled. Ordinary committee members: Victor Johnston G1PKS and Don Pike G3WDY. Victor has offered to continue with the postal distribution of the newsletter.</div> <div> The committee will look for a Secretary and appoint an auditor for the 2010 accounts in due course.</div> <div> <B>Club Program suggestions for 2010:</B> Computing and Printing Basics, Basic Electronics, Radio Controlled models, Croydon Carnival attendance, an open day.</div> <div> <B>No awards</B> were presented this year.</div> <div> <B>The 2010 AGM</B> minutes will be available at the March meeting.</div> <div> <B>Post meeting note</B> - Victor is gathering the information and CRB application forms that are required to get authorisation from the RSGB to hold training courses. Three members have put their names forward as prospective tutors.</div> <div> Following the decision to continue in operation, annual subscriptions for 2010 and now due. Please send your £9.00 sub to our treasurer Robert or pay him at the next meeting.</div> <div> <B>Future Club Meetings and Events</B></div> <div> <B><U>05 March 2010 - A History of Power Supplies part II</U></B></div> <div> The much delayed second part will be presented at the March meeting. </div> <div> <B><U>14-16 May 2010 Dayton Hamfest</U></B></div> <div> Since 1952, Hamvention® has been sponsored by Dayton Amateur Radio Association (DARA).  For many years it has been the world's largest amateur radio gathering, attracting hams from throughout the globe. This year the theme is <I>"Amateur Radio Clubs Worldwide: The Lifeline"</I>.</div> <div> Activities include:</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Forums where you can meet and hear authorities on all facets of amateur radio.</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">500 inside exhibit spaces where the exhibitors are showing their latest equipment and are available to answer questions about their products</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">A HUGE 2500+ space Flea Market area! The largest of its kind!</div> <div> A visit to this event is the opportunity of a lifetime.</div> <div> <B><U>Members and Club News</U></B></div> <div> <B>a) </B>We welcome Alan O'Donovan G8NKM as a new member. Alan came along to the Group Discussion and AGM and signed up at the end of the evening. His interests are in home construction, HF/VHF operation and programming in C, C++ and Java.</div> <div> <B>b) </B>Don G3WDY has agreed to take on an additional GB2RS news reader role on Sunday mornings from 09:00-09:30 on 3.643MHz and will alternate with G3WUZ.</div> <div> <B>c)</B> The roof, outer claddings and ceilings of our meeting venue have been repaired and a new floor has been laid in the main meeting room at All Saints and further renovation work is planned. The initial result looks very good.</div> <div> <B>d) </B>Your chairman and his XYL departed for a week's holiday in Madeira. The weather was a considerable improvement on that in the UK with daytime temperatures in the 16-20<FONT SIZE="1" COLOR="#000000" FACE="Arial" >o</FONT>C range and some rain only on the last full day. </div> <div> Some HF aerial installations were seen during our visit, one very close to our hotel.</div> <div> While walking around the streets of Funschal we spotted the following overhead mains wiring:</div> <div> <IMG SRC="36a67550.jpg" border=0 width="359" height="341" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> The island uses a series of horizontal concrete water channels called Levadas which are used to carry water from one part to another. There are approximately 2500Km of these channels with the longest one being 102Km. Each channel is about 1000mm deep by 600mm wide with a path on one side for access and repairs. The repair gangs often have to wheelbarrow loads of concrete one or two Km from the mixing point to the repair site as the paths are not sufficiently wide to support transport or mechanised tools. The major benefit is irrigation but tourists can walk most of them with or without guides and see how the infrastructure of the island is constructed.</div> <div> <IMG SRC="36272150.jpg" border=0 width="370" height="277" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> The final picture shows the terracing that is used to allow small plots to be constructed on the steep hillsides for growing crops:</div> <div> <IMG SRC="364791a0.jpg" border=0 width="377" height="282" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> <B>e) </B>Brian Cannon G8DIU has just moved house from Worcester Park to Yapton in Sussex. He will be well out of range of our VHF club net but is able to receive the Sutton and Cheam HF net on a temporary wire aerial.</div> <div> <B><U>Technical Snippets</U></B></div> <div> <B>a) A picture</B> of your scribe's rotatable VHF aerial array is shown below:</div> <div> <IMG SRC="3664f800.jpg" border=0 width="335" height="384" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> The lowest aerial is a combined 3 element for 50MHz and 4 element for 70MHz on the same boom and using a single feeder followed by an 8 element for 144MHz, an 18 element for 432MHz and a vertical colinear for 50, 144 and 432MHz. The Daiwa rotator is mounted at the bottom of the mast on a flat roof and is controlled from inside the shack. A separate bearing holds the mast to the top of the extension roof seen in black at the lower left of the picture.</div> <div> The thin wire in the upper right is part of the stub loaded HF bands dipole covering 1.8 - 30MHz but also usable on the VHF bands with a special Z-Match - details on the technical web site.</div> <div> <B>b) The subject of component units</B> on circuit diagrams has been exercising the minds of members recently on one of the electronic forums on Yahoo so back to basics for a moment.</div> <div> The unit of capacitance is the Farad and in the "old" days, most capacitors (they used to be called condensers) were shown as mfd or microfarads i.e. one millionth of a Farad. As a Farad is an extremely large unit of capacitance, it is rarely seen except for capacitors used as short term batteries. Very small capacitors like a 500pF tuning capacitor would have been shown as 500<FONT SIZE="3" COLOR="#000000" FACE="Symbol" >mm</FONT>F or 0.0005mfd and more often than not the leading zero would have been omitted. This often led to problems reading poor quality or very old and faded circuit diagrams.</div> <div> The unit of inductance is the Henry which is a large value in RF circuits and is more usually shown in much smaller multiples and the unit of resistance is the Ohm.</div> <div> Modern circuits implement an abbreviated form of annotation with the multiplier letter being used instead of the decimal point where appropriate and there are some minor differences in standards between Europe and North America.</div> <div> <B>Resistors:</B></div> <div> R = ohms, K = thousand ohms, M = million ohms, G = thousand million ohms, T = million million ohms and P = thousand million million. For very low values, m = milli-ohms or thousandths of an ohm and u = micro-ohms or millionths of an ohm. </div> <div> So typical values would be written as 1R2 (1.2ohms), 4K7 (4,700ohms), 5M6 (5,600,000 ohms) etc.</div> <div> <B>Capacitors: </B>(note that the F for Farad is often omitted)</div> <div> p = picofarad or one million millionth of a Farad,</div> <div> n = nanofarad or one thousand millionth of a Farad</div> <div> u = microfarad or one millionth of a Farad</div> <div> m = millifarad or one thousandth of a Farad</div> <div> F = Farad</div> <div> So typical values would be written as 0p47 (0.47 picofarad), 1n8 (1,800 picofarad), 8u2 (8.2 microfarad or 8,200,000 picofarad) etc. Note that picofarad is pronounced "puff" for short.</div> <div> <B>Inductors:</B></div> <div> n = nanohenry or one thousand millionth of a Henry, u = microhenry or one millionth of a Henry, m = millihenry or one thousandth of a Henry, H = Henry.</div> <div> So typical values would be shown as 4n7 (4.7 nanohenry), 5u6 (5.6 microhenry), 8m2 (8.2 millihenry), 47H (47 Henry) etc.</div> <div> Note the use of small letters for multipliers of less than one and capital letters for multipliers of one or more. Also, it is not unusual for the trailing zero to be omitted so you would see 1R, 10p, 10H etc.</div> <div> It is perfectly valid to use the Greek symbol <FONT SIZE="3" COLOR="#000000" FACE="Symbol" >m</FONT> instead of u for one millionth so 1u0 and 1<FONT SIZE="3" COLOR="#000000" FACE="Symbol" >m</FONT>0 mean the same thing. It is also valid but much less usual to use the component type letter at the end of a value for clarity i.e. 4u7F or 1u5H - if you see 4u7 next to a capacitor you know that it is a sub multiple of a Farad.</div> <div> Next month we will look at the standard incremental values used for most components.</div> <div> <B><U>Computer Corner</U></B></div> <div> If you want to share the construction of and access to documents with others over the Internet then one possibility is Writeboard from a website called  <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://writeboard.com/" TARGET="_top" TITLE="http://writeboard.com/"><U><U>http://writeboard.com/</U></U></A></FONT>. This is a free facility which allows a group of users to access the data from an Internet point anywhere in the world. All that is required is a name for your board, a password and an email address. </div> <div> Similar sites exist for holidaymakers and travellers to store their digital photos while on their journies so as to minimise the risk of loss. All that is required is access via an Internet café somewhere in the world.</div> <div> <B><U>Miscellaneous</U></B></div> <div> <B>The Royal Observatory at Greenwich</B> are hosting a "Solar Season" from 6<FONT SIZE="1" COLOR="#000000" FACE="Arial" >th</FONT> February to 9<FONT SIZE="1" COLOR="#000000" FACE="Arial" >th</FONT> May 2010. Activities include:</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Solar Story: Understanding the Sun</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Secrets of the Sun planetarium show</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">National Science and Engineering Week from 12-21 March</div> <div> <IMG BORDER="0" SRC="Symb075c00b700f000000000.png" HEIGHT="16" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Solar Stormwatch website</div> <div> Admission is free and the venue is open daily but charges and age restrictions apply to some events. Pre-book tickets at 020 8312 6608 and more information from <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.nmm.ac.uk/solar" TARGET="_top" TITLE="http://www.nmm.ac.uk/solar"><U><U>www.nmm.ac.uk/solar</U></U></A></FONT></div> <div> <B>RSGB</B> - On 11 January 2010 construction of the new National Amateur Radio Centre commenced on schedule at Bletchley Park. Subject to favourable progress, the work is expected to finish in June 2010. [<I>Source - RSGB website</I>]</div> <div> <B>HF Contests: </B></div> <div> 6/7 March - ARRL Dx Contest (Phone)</div> <div> 27/28 Mar - CQ WPX Contest (SSB)</div> <div> 29/30 May - CQ WPX Contest (CW)</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> Wanted:</div> <div> <B>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>Ken G3DJK </B>has a PCI Firewire Card 1349A, Maplin Code A49HH (new and unused). Best offer secures. Contact Ken on 020 8679 2717</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 <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:modecomponents@yahoo.com" TARGET="_top" TITLE="mailto:modecomponents@yahoo.com"><U><U>modecomponents@yahoo.com</U></U></A></FONT></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="36835330.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="510" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="500"><div> <B>Diary of External Events</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="500"><div> <B>28 Feb - Rainham Radio Rally</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 WIDTH="500"><div> Rainham School for Girls, Derwent Way, Rainham, Gillingham, Kent ME8 0BX. Trevor, G6YLW, 0771 7678 795 0771 7678 795</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 ><NOBR><div> <B>7 March - Bournemouth Radio Society 21st Annual Sale</B></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 57 WIDTH="500"><div> Kinson Community Centre, Pelhams Park, Millhams Road, Kinson, Bournemouth BH10 7LH. Opens 09.30, admission £1.50, Junk Sale. Contact John, G0HAT, 07719 700 771</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 ><NOBR><div> <B>7 March - Cambridge & District Amateur Radio Club Rally</B></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 76 WIDTH="500"><div> Wood Green Animal Shelter, King's Bush Farm, A1198 London Road, Godmanchester, Cambs PE29 2NH. Opens 10:00 (09:45), £3, Talk in. ontact David, M0GUM, 01954 203080, e-mail <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:rally2010@cdarc.co.uk" TARGET="_top" TITLE="mailto:rally2010@cdarc.co.uk"><U><U>rally2010@cdarc.co.uk</U></U></A></FONT>. Website: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.cdarc.co.uk" TARGET="_top" TITLE="http://www.cdarc.co.uk"><U><U>www.cdarc.co.uk</U></U></A></FONT></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 ><NOBR><div> <B>11 April - Cambridgeshire Repeater Group Annual Rally</B></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 57 WIDTH="500"><div> Foxton Village Hall, Hardman Road, Foxton, Cambridge CB22 6RN. Talk In S22, Opens 10.00, £2. Contact Laurence, M0LCM, 01223 654880, e-mail <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:rally2010@ambridgerepeaters.net" TARGET="_top" TITLE="mailto:rally2010@ambridgerepeaters.net"><U><U>rally2010@ambridgerepeaters.net</U></U></A></FONT></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 ><NOBR><div> <B>18 Apr - West London Radio & Electronics Show</B></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 76 WIDTH="500"><div> Kempton Park Racecourse, Staines Road East, Sunbury on Thames, Middlesex TW16 5AQ. Talk in. Opens 9.50/10.00, Lecture stream. Details from Paul, M0CJX, 0845 165 0351, <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> or visit the website at: <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.radiofairs.co.uk" TARGET="_top" TITLE="http://www.radiofairs.co.uk"><U><U>www.radiofairs.co.uk</U></U></A></FONT></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="500"><div> <B>14-16 May 2010 Dayton Hamvention</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 57 WIDTH="500"><div> Forums, exhibition space and a huge flea 2,500 space market, talk-in, live video and sound broadcasting over the Internet. More information from <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="http://www.hamvention.org/index.php" TARGET="_top" TITLE="http://www.hamvention.org/index.php"><U><U>http://www.hamvention.org/index.php</U></U></A></FONT></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 20 WIDTH="500"><div> <B>8-10 Oct - RSGB Convention</B></div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 WIDTH="500"><div> Horwood House, near Milton Keynes</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 39 WIDTH="500"><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><B><U>http://www.rsgb.org/events/index.php</U></B></U></A></FONT></div> </tD> </tR> </TABLE></div> <div> <B><U>News from other Clubs</U></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="451" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 03 Mar</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="386"><div> The London Underground Modernisation - Mark Sanderson, M0IEO</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 06 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="386"><div> World War II Wireless Intercept and Secret Stations" - Stan Ames G4OAV</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 04 May</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="386"><div> Refurbishment of Vintage Radios -Peter Bridgeman G3SU</div> </tD> </tR> </TABLE></div> <div> <B>Coulsdon (CATS) </B>2<FONT SIZE="1" COLOR="#000000" FACE="Arial" >nd</FONT> Monday every month, 8pm at St Swithun's Church Hall, Grovelands Road, Purley. Contact: Andy Jackson G8JAC, 020 8651 2727, <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:G8JAC@champ1,freeserve.co.uk" TARGET="_top" TITLE="mailto:G8JAC@champ1,freeserve.co.uk"><U><U>G8JAC@btinternet.com</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= 19 ><NOBR><div> 08 Mar</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> Film and video evening</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 12 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="241"><div> Lecture on microwaves (to be confirmed)</div> </tD> </tR> </TABLE></div> <div> <B>Echelford Amateur Radio Society</B></div> <div> <A HREF="mailto:patrick@yarg.demon.co.uk" TARGET="_top" TITLE="mailto:patrick@yarg.demon.co.uk"><U>Secretary Tony Collier 2E1IDK, 01932 564099 email: </U></A><FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:anthony991collier@btinternet.com" TARGET="_top" TITLE="mailto:anthony991collier@btinternet.com"><U><U>anthony991collier@btinternet.com</U></U></A></FONT></div> <div> <A HREF="mailto:anthony991collier@btinternet.com" TARGET="_top" TITLE="mailto:anthony991collier@btinternet.com"><U>Web site: http://homepage.ntlworld.com/stuart.m0sar/</U></A></div> <div> Meets on 2<FONT SIZE="1" COLOR="#000000" FACE="Arial" >nd</FONT> and 4<FONT SIZE="1" COLOR="#000000" FACE="Arial" >th</FONT> 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> <FONT SIZE="3" COLOR="#000000" FACE="Arial" >Tel: 01293 775278. Email: </FONT><A HREF="mailto:rats@qsl.net" TARGET="_top" TITLE="mailto:rats@qsl.net"><U><U>tim.trew@btinternet.com</U></U></A><A HREF="mailto:rats@qsl.net" TARGET="_top" TITLE="mailto:rats@qsl.net"><U> </U></A></div> <div> Meeting on 3rd Thursday of each month, 7:30pm at RNIB Redhill College, Philanthrophic Road, Redhill</div> <div> <B>Surrey Radio Contact Club (SRCC)</B> 1<FONT SIZE="1" COLOR="#000000" FACE="Arial" >st</FONT> and 3<FONT SIZE="1" COLOR="#000000" FACE="Arial" >rd</FONT> Monday every month, 8pm at Trinity School, South Croydon. Contact: Ray Howells G4FFY on 020 8644 7589 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="364" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 01 Mar</div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> Spring Surplus Equipment Sale</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 12<FONT SIZE="1" COLOR="#000000" FACE="Arial" > </FONT>Apr </div> </NOBR></tD> <tD VALIGN=TOP WIDTH="299"><div> AGM</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 10<FONT SIZE="1" COLOR="#000000" FACE="Arial" > </FONT>May</div> </NOBR></tD> <tD VALIGN=TOP><NOBR><div> Project Constructing Project Evening</div> </NOBR></tD> </tR> </TABLE></div> <div> <B>Sutton & Cheam RS.</B> 3<FONT SIZE="1" COLOR="#000000" FACE="Arial" >rd</FONT> Thursday every month, 8pm at Sutton United FC, The Borough Sports Ground, Gander Green Lane, Sutton. Contact John Puttock G0BWV on 020 8644 9945</div> <div> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="1" WIDTH="404" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 18 Mar</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="339"><div> 'Operating Digital Modes on HF' by Evan Duffield MØTJU</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 15 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="339"><div> 'Kite & Balloon Supported Antennas' by Roger Stafford - G4ROJ</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 20 May</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="339"><div> Annual General Meeting</div> </tD> </tR> </TABLE></div> <div> <B>Wimbledon. </B>2<FONT SIZE="1" COLOR="#000000" FACE="Arial" >nd</FONT> 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> <TABLE BORDER="0" CELLPADDING="1" CELLSPACING="1" WIDTH="414" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 38 ><NOBR><div> 26 Mar</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="349"><div> Commercial Satellite Communications by Peter Beardow G1SHV</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 09 Apr</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="349"><div> Surplus Equipment Sale</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 14 May</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="349"><div> Direction Finding Hunt</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 19 ><NOBR><div> 28 May</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="349"><div> Vintage Rig Evening</div> </tD> </tR> </TABLE></div> <bR> </td> </tr></table></body>