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Volume 25 Issue 12 December 2017 Cockenzie & Port Seton Amateur Radio Club

EDITORIAL Here we are in December at the end of another club year. Has it been a good year yes, I certainly think so and in next month’s editorial I will do a recap on what has happened over the 2017 year? Personally it has been another busy year both on the radio club and personal front to the extent I have not played as much radio as I would have liked to, plus I still have lots of outstanding things I should have done so maybe next year I will end up with a nice clean sheet, some hopes knowing my luck……. So, what else has happened since our last club night? There were two talks, the first by Allister GM7RYR on “Digital Voice Modes” and the second by Bjoern DL1DBS on “New Life into Old Broadband/Wi-Fi Routers” with both extremely enjoyable and interesting. Due to time constraints I am unable to write a report on Bjoern’s talk so hopefully it will be in the January Newsletter. Regarding the teaching front all the pupils passed the Foundation course at the beginning of November so congratulations to those who did with a warm welcome to Amateur Radio. An Intermediate class is now in progress with the exam planned for the Saturday prior to Christmas. I will be starting a Full (Advanced) Course on the 13th January aiming for the exam at the end of February. I am sure you will go along with me and wish them all the luck. To the future: Saturday 9th December a few of us are going out for our Christmas Meal which I am really looking forward too, it is an occasion where we get a chance to go out along with our partners and have a meal and a good laugh. Remember our Winter Solstice Activity Week (10th to 16th December) and you selecting your day within that week so why not come on and do a bit of operating. There should be fuller information for this in the newsletter. For me I am taking a sabbatical for the rest of December and January to try and recharge the batteries ready for the “February Off” on the club events calendar.

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My wish for 2018 is that some of the “old faces” will return to the club and that everyone will support ALL our club events. LET US ALL SUPPORT THE CLUB because if you don’t it will just die and that is something I would hate to see happen. Right that is about it again for another year so all that is left to say to you all is to WISH YOU ALL AND YOUR FAMILIES A VERY MERRY CHRISTMAS AND A HAPPY, HEALTHY AND PROSPOROUS NEW YEAR. I should add I hope you get what you want as well from Santa, assuming you posted your letter!

Bob GM4UYZ PS: Remember January club night is Friday 5th January.

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Activity Day report November Activity Day – “YOUR” selected date between 12th to 18th November 2017 00:00 to 23:59 This is our eleventh of 2017 where you can select your date to operate during a one-week selected period...... so reports below on who or who didn’t take part Activity Day Rules for 2017 can be found using the following link:

http://cpsarc.com/downloads/ Apologies first: Gareth M3INO Apologies no HF log from me this time bit snowed under with work due to the mad xmas rush all work hours and no play!! However I did have time to getting around and setting up my DMR and from what I’ve seen and worked so far I’m pretty impressed, also the shack now has a Marine Traffic AIS installed so for those of you that use Marine traffic etc I’m known as Station. - Northumberland 4027 Bob MM0LBF Sadly absolutely nothing this month - will try and do better next time. Reports: Bob GM4UYZ Noticed that the OK-OM Contest was on so decided to have a go in the limited time that I had available. I decided to stick to 20M and had 25 QSO’s with Czech Republic and Slovakia. Enjoyed my short time on the air. Tom GM8MJV Few things going on at home so just a few FT8 QSO's pleased to get 2 new DXCC entities FR4OO (Reunion Island) and TI4DJ - Costa Rica. The data frequencies are quite busy even although at a cycle low. FT8 seems to have breathed a new life into the bands. Martin 2M0BEC Not had much time this week but here you go Duncan MM0GZZ Hi bob just about forgot been busy,, here are some I managed to contact on the new data jt8 mode the furthest being PP7DX brazil on 10watt at 7296km with states and Canada on 20mtrs and 40mtrs being good in the evening Andy MM0GYG Logs are attached. I spent a good part of the session fighting computers. I had changed my USB serial driver to suit an FTDI sound card and my TS590-S wouldn’t work properly with it. The whole experience reminded me of Windows 95!

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However, the 20m band was up and running although I didn’t stray out of Europe. There seemed to be more people happy to chat than usual. Perhaps the rubber stampers have all moved to FT8. Martyn MM0XXW Nothing great this month, conditions were terrible but still managed one or two into the log. Data is FT-8. Tim MM0VTO Things weren't looking too good for this month's activity day as my antennas were still damaged by storm Ophelia but I got up on the roof and made the necessary repairs to cable ties and collapsed fibreglass poles. I was able to fit in a couple of data contacts in before I headed off to work and was lucky to be able to make a VHF contact over lunch. When I got home I hit the HF bands and made a few pleasant QSOs. As evening gave way to night, I spared my neighbours my repetitive CQ calling and switched over to data operation. I'm surprised by how JT65 activity has tailed off in favour of FT8, but I decided to go with the crowd and made a few contacts up until the end of the 'day', the final one being N8OQ which is a first for me on 80m. Bands still not in the best shape this month and conditions show this by the number of actual QSO’s made. No SOTA report this month from Colwyn MM0YCJ. This month DATA is the winning mode this month with FT8 being the predominant mode. Regarding modes being worked then out of the 99 QSO’s made: CW = 25, SSB = 12, Data = 61, FM = 1. Best DX on Data was by Tom GM8MJV working FR4OO on 21Mhz at a distance of 9875kms into Reunion Island and on CW Bob GM4UYZ working ON8OM on 14MHz at a distance of 1816Kms into Slovenia and on HF SSB Martyn MM0XXW working 5B/SQ9UM on 18MHz at a distance of 3482Kms into Cyprus and lastly on FM Tim MM0VTO working GM6ZAK/P in Scotland and with regard the rest of the QSO’s they were predominantly the normal European contacts. The next Activity Day is any day starting on the week beginning the 10th and ending on the 16th December 2017. Choose your day and then submit your log. The changes should now suit everyone as you are no longer tied to a specific day so from that end. I hope everyone and even more of you will at least take part and submit your logs or even if they don’t make any contacts tell us about what it was like. Good DXing. (Continued on page 3)

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DATES FOR YOUR DIARY

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Summary of who did what: Total QSO’s = 106 where: 21= CW, 19 = SSB, 65 = DATA, 1 = FM Bob GM4UYZ Tom GM8MJV Martin 2M0BEC Duncan MM0GZZ Andy MM0GYG Martyn MM0XXW 15M Tim MM0VTO

CW: 25 x 20M DATA: 1 x 30M, 6 x 20M, 1 x 15M SSB: 2 x 20M DATA: 10 x 40M, 5 x 20M DATA: 3 x 40M, 7 x 20M DATA:11 x 40M, 1 x 20M, 7 x 17M, 4 x SSB: 2 x 80M, 4 x 40M DATA: 9 x 80M, 9 x 40M, 3 x 20M FM: 1 x 2M

Thanks to those who came on it was much appreciated. Bob GM4UYZ

MONTH December

MONTH 2018

ACTIVITY WEEK 10th to 16th December

ACTIVITY WEEK

January

7th to 13th January

February

18th to 17th February

March

11th to 17th March

April

8th to 14th April

May

13th to 19th May

June

17th to 23rd June

July

15th to 21st July

August

12th to 18th August

September

9th to 15th September

October

14h to 20th October

November

11th to 17th November

December

9th to 15th December

Activity Day report Talk on “Digital Voice” by Allister Watson GM7RYR This all started when one of the club members asked if it was possible to get a talk arranged on some of the new Digital Voice modes. I then immediately thought of Allister as that is his main interest so before he knew it he had been “conned” into giving a talk. I must admit personally I am not interested in the new modes but saying that I am interested in the technology behind it all. The talk was originally going to be delivered as part of our October Events diary but due to unforeseen circumstances on Allister’s side it had to be postponed. A swift rearrangement and the new date was the 10th November 2017 in the Port Seton Resources Centre. As part of the talk Allister and Ellis GM4GZW brought along various handhelds a mobile radio and a self-contained repeater. These were available after the event to look at and use. To the talk: The opening slide asked the question – Why Digital? From a commercial user’s aspect, they require – Security, Simplicity of use, Improved performance, Clarity under challenging conditions, easier monitoring of communications

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and lastly location and data services whereas Amateur Users want experimentation, connectivity, Clarity under challenging conditions, easier monitoring of communications, location and data services plus love playing with “new toys”. Amateurs and digital standards want to use what standard that is available but can be restrictive due to our licence conditions. Examples of standards are MPT1327, TETRA, P25, DMR, NXDN by different manufactures and Fusion and D-Star which are Yaesu Standards. The most common in Europe are D-Star, DMR and System Fusion. D-Star is the longest established amateur digital mode. The system was developed in the late 1990s by the Japan Amateur Radio League and uses frequency-division multiple access and minimum-shift keying in its packet-based standard. The general availability of radio hardware equipment was around 2004/5. ICOM have been developing D-Star for over 25 years and it’s a mature fully featured technology. ICOM D-Star radios are described as “Generation 3 Radio’s“ with sophisticated technological integration of GPS, prewritten configuration files and optimised audio response. They are now very easy to use …… Access to the D-Star net(Continued on page 4)

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work can be made by radio, through connected repeaters, access points, hot spots (DV mega, DV4Mini and MMDVM devices) and directly by IP dongle on your computer with no radio involved…. But is it radio? In Scotland there are 33 access points, 4 Repeaters GB7DA, GB7DK, GB7GD, GB7LV and several Multimode boxes like GB7DE Plus points. Great coverage, never far from an access point, hot spot or repeater. There might be one in the bus you are on or in the truck that’s beside you but there is only one D-Star network Drawbacks. Two radio manufacturers, ICOM kit is expensive, current dual band handheld around £400, mobile £575 but Kenwood kit is more expensive. (£600 handie any one …...?) Yaesu Fusion is the newest amateur digital mode Plus points. Very easy to configure and is Plug and play out of the box. There is only one fusion network* (well perhaps two) but has a Staggering amount of “Rooms” / Reflectors / talk groups Drawbacks. There is one manufacturer, Yaesu*, There are also lots of unconnected repeaters. The cost of radios is - Full feature mobile £475 budget mobile £300, Full feature Handie £375 budget handie £200 DMR is an open digital mobile radio standard defined by ETSI Tier (1) - Licence-free use in Europe on the 446MHz band. (Digital PMR 446) Tier (2) - Licensed use in PMR bands from 66-960MHz. (That’s us!) Repeaters enhance coverage, simplex use with defined parameters Tier (3) - Trunking operation in bands from 66-960MHz. DMR can support two voice channels within a standard 12.5kHz channel spacing, via Time Division Multiple Access (TDMA) with two-time slots. 4-state FSK modulation is used at a rate of 4,800 samples per second, which corresponds to 9,600 bits/s so it is an efficient system, without being overly complex. This means that two separate conversations can be handled by the one repeater, on the same frequency at the same time. TDMA technology for narrowband 12.5KHz (6.25 equivalent6.25e) provides advantages of: Longer battery life Better spectrum efficiency There are many different vendors (over 50) offering DMR radio equipment which is interoperable and covers a wide range of use, features and budget’s. All DMR standard radios have the following features: Can perform status checks on other radio’s Can send “alarm calls” to ring other radio’s

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Can send / receive text messages to / from other radio’s If authorised, Can covertly listen in to other radio’s Can stun/ disable other radio’s If location services are enabled can track other radio’s In Scotland there are 6 DMR Capable Repeaters – Edinburgh, Dundee, Stirling, Jedburgh, Airdrie, Troon (Allister said the Troon repeater is no longer as the amateurs house went on fire and sadly the amateur was killed in the fire). In the pipeline Melrose and Erskine have already have approved NoV’s (Notice of Variations) with Banff and St Monans in the application stages. DMR radios are connected to the internet by default so that facility must be available. So, from a plus point there is excellent coverage in the Scotland Central belt. The cost of radios currently is: dual band handheld £150 limited budget model £76 and Full Feature Dual band mobile £350 UHF mobile £250.

GB7DE VHF Multimode D-Star + Fusion + DMR Coverage

GB7EE UHF DMR Coverage

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Drawbacks They require Codeplug configuration. Multiple networks creating “DMR Wars “and with Rapidly developing network and technology, it is hard to keep up.

Hope this all makes sense it did for me as I recognise some of the terminology and how things are done from my old working life. Whether we like it or not it is here to stay, and it is the emerging technology. Thanks to Allister for his talk on this new adventure it was very interesting indeed. Thanks to all those who attended the talk.

So how does it work…... the following slides from the presentation show what is being carried in each of the timeslots so as an example if you want to check your radio is connecting then you can do an EchoTest by “dialing in” to TG9990 where when you transmit you will hear yourself coming back. If you want to contact say someone worldwide then you “dial in” to TG91 and put out your call and you will be heard all around the world.

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Bob GM4UYZ

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2017 CQWW SSB Contest 48 hours Saturday/Sunday 28-29th OCTOBER As we have in past years the club once again took part in the above contest from our usual venue of Barns Ness Lighthouse, Dunbar. We are most grateful for the generosity of Lafarge (Tarmac) cement for their continued sponsorship again, allowing us access to all the outbuildings at the lighthouse. As normal we made use of the outbuildings to set up the stations, had a kitchen, a workshop and even a toilet this year. The contest runs for 48 hours but it also needs a day either side to build and dismantle the station. This year we decided once again to enter the Multi-2 section which allows two stations to run calling CQ for the whole 48 hours. Running up to the contest weekend there had been numerous Facebook and email updates to find out who would be attending and for how long. This was highly beneficial as it allowed a plan to be devised for setting up and also dismantling the station. It also allowed me to put together a rough operating rota together so that everyone who was attending got an equal share of operating and more important a rest. The decision this year was to continue the 2-hour operating stint rather than the old normal 3 hours. This I admit was again was a resounding success by everyone who operated. Believe you me the rest times are as important as the operating time as even after a 2 hour stint it can leave you absolutely exhausted. Work really starts on the Thursday with the hire van to be collected, generator to be collected, towers to be collected and then finally load the towers and the vans with all the equipment. It is a full day’s work to carry this out so bear a thought to all those who go out their way to see this to get this completed. Work started early on the Friday morning arriving between 07:30 and 08:00 with a quite a team available consisting of Cambell MM0DXC, Gary MM0FZV, Geoff MM5AHO, Paul MM0VPR, Tommy 2M0EGH, John MM0CCC to start building the aerials and run coaxes and rotator cables and lastly myself GM4UYZ building the shack. With having such a team it allowed all the equipment and aerials to be installed with no hitches at all, basically I put this down to most of the team now being quite familiar with the kit having now built and dismantled it a few times. Brian M0RNR arrived early afternoon to help the aerial. Cephas MM0INS also arrived just in time to take one of the first operating slots alongside myself. Issy 2M0ISY also donated the “Contest Soup” which was really enjoyed by everyone over the week end. She also supported us as well on the Saturday and on Sunday.

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Other people who visited over the weekend and operated were John MM0JXI, Alex 2M0ECK, Liz 2M1GLD, Rickie GM1PLY, Steven MM3HXX on the Saturday. Craig MM6KLQ, Issy 2M0ISY with her daughter Gemma and granddaughter Emma. Thanks to those who just visited us as it certainly helps lift the spirits of those who were there for the long haul. Four stations were set-up which was band orientated and consisted of three FT1000MP and a FT1000 each with an Alpha Linear so lots of consistency. Along with each station a Bandpass filter was used, Band Decoder Box (3 stations only), Voice recorders and an antenna switch (two stations only). Each radio was connected to the computer to allow rig control. Antenna wise we had two stations each dedicated to their own band and fitted with a 40M YAGI and 20M YAGI respectively. The other two stations were set up with two antennas each; one station was able to operate on 160M using an Inverted L wire antenna and 15M using a Cushcraft A3S YAGI. The other station was on 80M using a Titanex vertical and 10M using a Cushcraft A3S YAGI Software wise this year we used what has become our club contest software; the Windows based software WIN-TEST. The beauty about Win-test is that we can use an Ethernet network and it caters very well indeed with “loss of a station” and being able to recover it. This year our network was purely Ethernet as all the active stations were wired to the Ethernet system using a switch. We had a major issue though getting the cluster via a tethered phone to pass the cluster spots onto the WinTest network. After a couple of hours, it was found that it was the laptop not sending out the UDP broadcasts onto the network (Note: WinTest was set up to broadcast out on the correct network broadcast address, first thing that was checked). We had a spare PC which was set up in the rest area to allow everyone to see what was being worked, etc and a suggestion from Brian M0RNR who said let’s give that a try. Brought it into the shack, connected the phone and it all worked. Thank goodness as it was 30 minutes before the start of the contest. How were band conditions? Well we thought it was going to be a struggle due to the propagation predictions and down near the bottom of the sunspot cycle, but we were pleasantly surprised how good the conditions were. 10M was the band we struggled with getting very few contacts, but it didn’t really surprise us. Below I have added 2015 operating rates and 2016 rates to show the difference between this year and last year. From the tables at the end of the end of this showing how we ended and what we submitted gives (Continued on page 7)

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(Continued from page 6)

you the true picture. Operating Statistics 2016

Regarding DXCC countries worked, well certainly we had contacts all round the globe from the Pacific Australia and the Far East, from Antarctica to Alaska. The list of operators for the weekend is as follows: GEOFF MM5AHO BOB GM4UYZ TOMMY 2M0EGH PAUL MM0VPR BRIAN M0RNR CAMBELL MM0DXC GARY MM0FZV CEPHAS MM0INS JOHN MM0CCC ELLIS GM4GZW MATTHEW MM3NQT STEVIE MM0GZA JOHN MM0JXI After the end of the contest we all retired so to be ready for the Monday dismantles.

Operating Statistics 2017

Did we have any issues: We had the normal teething issues on set-up which were quickly resolved then we had three faults over the contest. • The Network issue trying to get the cluster onto the network. • The 15M beam – the director decided to have a mind of its own regarding its position on the boom. This was resolved to a Self-Tapper screw had either come loose or had sheared in the high winds we had on the Saturday into Sunday. • The 10M beam – Due the high winds over the Saturday Night/Sunday morning the 10M beam collapsed after a guy went. It broke the rotator clamp on the way down. Luckily, we had a spare to replace it. The resilience of the team had the beam repaired and back up in the air after about an hour of daylight. Well done on this one.

On the Monday all the equipment was dismantled and returned to their rightful homes ready for the next contest. Was it enjoyable? Yes it was, lots of hard work, lots of operating and most important lots of laughs what more can you ask for. The consensus of opinion again is that the two hour operating slots was the ideal and the right section the MultiTwo section which only requires two stations is the one for us as it is easier to man when the operating team is small plus as well it ensures people get adequate rest periods which I see as being absolutely essential. The section offers different tactics than running Multi-Multi which in itself makes it a more interesting section. Below shows how we ended after the contest and what was eventually submitted. There will always be differences as the log is checked for typos and any errors. Sometimes it works in our favour and other times it does not.... How we ended with QSO’s Logged: 5273 Contest : CQ World Wide DX Contest Callsign : GM2T Mode : PHONE Category : Multi Operator - Two Transmitter (M2) Overlay : --Band(s) : All bands (AB) Class : High Power (HP) Zone/State/... : 14 Locator : IO85SX Operating time : 46h05 BAND QSO CQ DXC DUP POINTS AVG -------------------------------------160 356 7 49 5 375 1.05 80 874 20 77 12 1284 1.47 40 825 18 86 19 1104 1.34 20 2124 35 113 51 4422 2.08 15 962 29 112 19 2021 2.10 10 26 11 22 0 64 2.46 -------------------------------------TOTAL 5167 120 459 106 9270 1.79 ====================================== TOTAL SCORE : 5 367 330

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What was submitted

Well done to everyone who took part it is a fantastic score.... and I think Multi-2 is here to stay.

BAND QSO CQ DXC DUP POINTS AVG -------------------------------------160 355 7 49 6 374 1.05 80 873 20 76 13 1283 1.47 40 824 20 85 20 1103 1.34 20 2120 34 111 55 4412 2.08 15 961 29 112 20 2018 2.10 10 26 11 22 0 64 2.46 -------------------------------------TOTAL 5159 121 455 114 9254 1.79 ====================================== TOTAL SCORE : 5 330 304

Bob GM4UYZ

Dupes are not included in QSO counts neither avg calculations As it turns out there were not many mistakes or I will rephrase it I didn’t find many so the logging by everyone was excellent. The eventual UBN file will show what I missed!!!! I have been keeping records, surprise, surprise you may say— on how we have done since we started doing the CQWW Contest. The Final Score, QSO’s, Zones and Countries are what the final adjudicated results were except for this year (2017) where it is showing our submitted score. From the table you can see how well we have achieved this year so everyone needs to be congratulated for all the effort that they put in.

YEAR

SECT

CALLSIGN

LOCATION

1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012

M-2 M-2 M-2 MM MM M-2 MM M-2 M-2 MM MM MM MM M-2 M-2 M-2

GM0NTL/P MM0AMV/P MM0CPS/P GM2T GM2T GM2T GM2T GM2T GM2T GM2T GM2T GM2T GM2T GM2T GM2T GM2T

BENTS Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness Barns Ness

No of ENTRANTS Europe No results No results Log but no 35 (Europe) 29 (Europe) 23 (Europe) 21 (Europe) 27 (Europe) 27 (Europe) 24 (Europe) 20 (Europe) 23 (Europe) 25 (Europe) 52 (Europe) 45 (Europe) 54 (Europe)

2013 2014

M-2 M-2

GM2T GM2T

Barns Ness Barns Ness

2015

M-2 M-2 M-2

GM2T GM2T GM2T

Barns Ness Barns Ness Barns Ness

2016 2017

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POSITION

FINAL SCORE

Available Available Entry?? 28 17 21 15 22 18 12 13 14 18 16 18 24

47 (Europe) 47 (Europe) 42 (Europe) 36 (Europe)

QSO’s

ZONES

COUNTRIES

?? ?? ?? 1400091 4216844 948918 1009821 1809750 2528326 4443504 4416448 2183742 2442830 3927208 5597173 4447140

2158 4523 1366 1641 2565 3454 5606 5527 2832 3306 3994 4662 5098

87 114 87 91 102 95 114 109 116 109 133 156 121

312 434 331 318 373 359 510 495 422 450 471 571 449

20 16

6335560 7522431

5817 6169

131 144

464 557

23 17

5526472 2195028 5330304

5027 3394 5159

134 95 121

530 411 455

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The rebirth and demise of a radio genset For many years the Cockenzie and Port Seton ARC had used hired, borrowed or purloined generators for mobile operation in contesting and field activities. Some of that activity was at Barns Ness Lighthouse in East Lothian. This is a decommissioned Stevenson built lighthouse, but now a great place for contesting, and other activity. In decommissioning the lighthouse, the Norther Lighthouse Board sold the lot to nearby Cement Company LaFarge. Eying up the old standby genset one day, it was decided that a nice word in the right ear might obtain permission to extract that diesel genset and that it could be converted to a trailer mounted set for use at many locations.

It's brass plate showed that it had been built in 1965, and its hour meter showed only 500 hours on the clock. That indicated that this was really “new old stock”; 500 hours is only just “run in”. After a lot of huffing and puffing in getting the machine safely out of the lighthouse buildings, and recovering any bits of electrical kit with it that looked useful, it was set about to convert the beast into a mobile genset specifically for radio. A reasonable UK contest station might run 3-4 radios , each with linears, and on CW or SSB, might require on peaks perhaps 5-6kW (if all keyed at the same time). Then there'd be the kettle, and the microwave, essential contest equipment, and some lights computers and other peripherals. So a 10 kW genset would be sized about right. But what this set had that many modern ones don't is a massive flywheel of about 150kg. Spinning at the regulated 1500 rpm, that'd be a very good peak load absorber. Some lighter generators struggle with the sort of peaks that SSB or CW demands put on the supply.

So in October 2009, a team was assembled with tools, and kit to uninstall the hefty beast, and get it to Geoff, MM5AHO's home workshop for conversion.

Over the following winter, Geoff set about constructing a trailer and housing round the generator, now affectionately called Genevieve. Wheels, axle, frame, and a marine ply wood housing came together.

The Lister 2 cylinder diesel was rated at 19 HP, and with generator was rated at 12.5 kVA or 10 kW running at 1500 RPM.

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The original installation included an automatic start up system, and an outboard sump oil tank for continuous running for days or weeks if necessary. That oil tank of about 40 litres become the fuel tank. The 12V battery starter was used, now fed from a standard battery, and a new control panel made to encompass the original instrumentation. The lighthouse installation had various protection mechanisms such as autoshutdown on over temperature, low oil pressure etc. These (Continued on page 10)

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the conversion.

were retained. On an air cooled engine, adequate airflow is required, so in case someone closed the door on the new canopy, it was essential that the engine would not cook.

So by summer of 2010 Genevieve was ready to roll, and she powered the CSPARC's effort at VHF Field day, Lighthouse weekends, CQWW contests and was occasionally lent to others to use as well.

But there was no system to recharge the starter battery. In 1965 mostly generators were fitted to cars, and in the lighthouse mains power was used to keep the batteries charged. An old 12V linear PSU was found, and installed to run off the generator to charge up the battery.

Running at about 1.2 litres per hour, Old Genevieve would run noisily parked a little way off from the operation places, and provided power to run whatever was desired. It was a great radio genset. The system of voltage control would confuse a modern automotive apprentice. Completely electro-mechanical it converted over voltage to linear motion on the engine governor, with a manual potentiometer to fine tune. In the lighthouse fuel was supplied by gravity from an elevated tank. But the Lister had provision for a mechanical lift pump. Initially an electric pump was installed, later overtaken by a mechanical one as originally designed.

It was perhaps ironic that she ended up doing most work back at Barns Ness Lighthouse where she'd spent the previous few decades standing by, waiting for a power failure. Storage between outings was sometimes an issue, until a place became available in a lockup in East Lothian where some club members stored vehicles and other machinery. Last year though, some arsonist decided to burn the place down, and they did a complete job. Genevieve, along with several cars and many thousands of pounds worth of tools and other kit was reduced to a pile of scrap metal and ashes. The poor Lister's aluminium rocker covers melted, the electrics burned away, the trailer tuned to scrap, and the diesel in the tank probably aided the combustion! So the old workhorse genset, born in 1965, given a new life 45 years later, was cremated in 2016 at age 51. About 1200 hours on the clock she still had a lot of life left, had not some vandals come along and burned her home down with her stored inside. So, if you see such an old generator, grab it somehow. These old heavy sets are the ideal radio generator sets.

The power output was split into four circuits, each with a circuit breaker and an outlet socket. This would allow for multiple extension leads to carry the 10kW potential output. The exhaust of the lighthouse was replaced with a Kwikfit cast off, and the plumbing of exhaust, and fuel completed

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Geoff MM5AHO

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Test Your Knowledge 1. The d.c. input power to a p.a. stage is calculated by measuring the collector current Ic to the p.a transistor and the collector voltage Vc. Which one of the following formulae is then applied to the calculation a.

Power =Vc x Ic

b.

Power = Vc² x Ic²

c.

Power = Vc – Ic

d.

Power = Vc/Ic

2. In the circuit shown what will be the reading on the meter?

6.

A transmitter's r.f. output power is always

a.

less than the d.c. input power

b.

almost equal to the d.c. input power

c.

more than the d.c. input power

d.

half the d.c. input power

7. Which would be the most suitable range of a multimeter to check the continuity of a coil of wire for an antenna 40 metres long? a.

0-100 mA

b.

0-l0V

c.

0-100V

d.

0-10Ώ

a.

1A

b.

2A

c.

6A

d.

12A

8. When a frequency of 10MHz is mixed with a frequency of 30 MHz, two new frequencies are produced. These are

3.

An inductor can

a.

10kHz and 30kHz

a.

hold an electric charge on two parallel plates

b.

20kHz and 40kHz

b.

store energy between two parallel plates

c.

20MHz and 40MHz

c.

hold a charge in a coil of wire

d.

40MHz and 80MHz.

d.

store energy in a magnetic field.

4. Which one of the following shows a variable frequency parallel tuned circuit?

9. When a radio frequency carrier is modulated by audio frequencies the additional frequencies which appear above and below the carrier frequency are a.

the result of deviation of the carrier

b.

sidebands

A

c.

harmonics

B

d.

parasitic oscillations.

C D 5.

The purpose of the iron core in a transformer is to

a.

concentrate the magnetic field

b.

concentrate the electric field

c.

insulate the two windings

d.

provide an earthed cover for safety.

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10. An r.f. power amplifier is producing a 5th harmonic as well as the wanted signal of 14.2MHz. The harmonic will have a frequency of a.

7.1 MHz

b.

28.4MHz

c.

70MHz

d.

71MHz

11


Clublog Tables The 2017 Clublog tables are now underway and we now have 19 entries in the table (1 up on last month)

Taking part is easy, register at clublog.org, join the CPSARC club there and upload your ADIF log—simples!

Thanks to everyone for uploading your logs and we look forward to more people joining in as the year goes on.

There are no prizes, just the satisfaction of seeing your name in the table.

Gordon MM0GPZ stays in the lead with a fantastic 157 DXCC John MM0JXI entities but GM2T bounds into second place with a total of 142 (table extracted on 26/11/17) entities from IOTA and CQWW, Martin 2M0BEC and Jim MM0DXH are tied in third place. I’ve added 6m to the table as there’s been some activity there, Rank 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

Callsign MM0GPZ GM2T MM0DXH 2M0BEC MM0GZZ MM2N GM8MJV M0RNR MM0XAB MM0XXW GB2LBN GM4UYZ GB2MOF MM0CPS MM0GYG MM0YCJ MM0JXI MM0TKE 2M0PCW

160 24 48 0 0 0 20 0 0 0 0 0 0 0 0 0 0 0 0 0

80 76 79 18 1 0 63 5 1 1 4 0 11 0 2 0 0 0 0 0

60 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

40 89 94 5 35 71 66 56 34 22 50 30 20 14 16 12 18 0 0 0

30 19 0 4 0 62 0 32 6 9 41 0 0 0 0 16 0 0 0 0

20 105 120 104 113 70 78 22 72 53 40 39 42 42 24 23 25 33 7 4

Club Attire The club has a design for Club T-shirts, Polo-shirts, Sweat-Shirts, Fleeces and Jackets and all of these can be obtained from Patricia Bewsey Designs When making an order please quote ‘Cockenzie & Port Seton Amateur Radio Club’ to ensure that the Club Logo will be placed on the required garments. Cost will depend on garment and should cover the garment and logo, call sign addition will be extra.

12

17 29 0 11 6 53 0 5 0 29 46 0 0 0 0 8 0 1 0 0

15 52 114 25 2 1 46 28 8 2 24 0 7 0 2 0 0 0 0 0

12

10

0 0 0 0 0 0 5 0 0 24 0 0 0 0 0 0 0 0 0

6 43 22 1 25 6 16 7 0 30 0 0 0 4 0 0 6 0 0

6 29 39 3 0 34 0 49 6 0 6 0 0 0 7 4 0 0 0 0

DXCC Slots Range 157 430 12 yrs 142 537 18 yrs 114 192 14 yrs 114 158 11 yrs 107 316 9 yrs 96 279 5 yrs 93 218 39 yrs 76 134 18 yrs 71 116 3 yrs 70 265 11 yrs 50 69 22 yrs 48 80 37 yrs 45 56 16 yrs 41 55 19 yrs 35 63 8 yrs 34 43 0 yrs 34 40 0 yrs 7 7 3 yrs 4 4 0 yrs

If you wish to add your call sign to the logo then please ask at the time of the order. Order from: PATRICIA BEWSEY DESIGNS, Tel/Fax: 01620 850788 Mobile: 07970 920431

Email: patricia.bewsey@gmail.com Note: the shop at Fenton Barns is now closed

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December 2017 Contests For anyone interested in contesting there is something for everyone. Contesting is not just about winning although that is the ultimate aim; it is about taking part, having some fun, honing your operating skills, helping you understand propagation and it also a good opportunity to test out your station at home to see how it is performing. Happy Contesting....... Extracts are from the RSGB Radio Sport VHF & HF contest and the WA7BNM Contest Calendar (http://www.hornucopia.com/contestcal/perpetualcal.php)

December 2017 ARRL 160-Meter Contest

2200Z, Dec 1 to 1600Z, Dec 3

Wake-Up! QRP Sprint

0600Z-0800Z, Dec 2

TOPS Activity Contest

1600Z, Dec 2 to 1559Z, Dec 3

Ten-Meter RTTY Contest

0000Z-2400Z, Dec 3

RSGB 144MHz AFS

1000Z-1600Z, Dec 3

ARRL 10-Meter Contest

0000Z, Dec 9 to 2359Z, Dec 10

SKCC Weekend Sprintathon

1200Z, Dec 9 to 2359Z, Dec 10

AGB-Party Contest

2100Z-2400Z, Dec 15

OK DX RTTY Contest

0000Z-2400Z, Dec 16

Croatian CW Contest

1400Z, Dec 16 to 1400Z, Dec 17

Run for the Bacon QRP Contest

0200Z-0400Z, Dec 18

RAEM Contest

0000Z-1159Z, Dec 24

RSGB 50/70/144/432MHz Christmas Cumulatives Contest

1400Z, Dec 6 to 1600Z, Dec 29

DARC Christmas Contest

0830Z-1059Z, Dec 26

SKCC Sprint

0000Z-0200Z, Dec 27

RAC Winter Contest

0000Z-2359Z, Dec 30

Stew Perry Topband Challenge

1500Z, Dec 30 to 1500Z, Dec 31

January to December Monthly Contests 2018 144MHz FMAC 1900-2000 (Local) Every 1st Tuesday 144MHz UKAC 2000-2230 (Local) Every 1st Tuesday 432MHz FMAC

1900-2000 (Local) Every 2nd Tuesday

432MHz UKAC

2000-2230 (Local) Every 2nd Tuesday

50MHz UKAC

2000-2230 (Local) Every 2nd Tuesday

70MHz FMAC

1900-2000 (Local) Every 3rd Tuesday

70MHz UKAC

2000-2230 (Local) Every 3rd Tuesday

1.3GHz UKAC

2000-2230 (Local) Every 3rd Tuesday

SHF UKAC

2000-2230 (Local) Every 4th Tuesday (Jan-Nov Only)

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13


Club Events 9 December

Xmas Meal—Ravelston House 19:00

2018 5 January

Club Night

2 February

Club Night

16 February 2 March 16 March 6 April

Radio Check Night with John MM0JXI Club Night Construction Night Club Night

14 April

GMDX Convention—King Robert Hotel Stirling—a great weekend, well worth a visit, stay for the Dinner and a few drinks afterwards

20 April

Visit to Secret Bunker at Barnton Quarry

29 April

Norbreck Rally—Blackpool—we treat this as a social weekend away

4 May 11 May 1 June 16/17 June

Club Night 1st 144 MHz DF Hunt Club Night Museums on the Air weekend at the Museum of Flight

29 June

Club Night (early due to VHF Field Day

7/8 July

VHF Field Day

28/29 July 3 August 10 August 18/19 August 7 September 22 September 5 October 28/29 October

RSGB IOTA Contest from Tiree Club Night 25th Annual Mini Rally Lighthouses Weekend from Barns Ness Club Night 2nd 144MHz DF Hunt Club Night CQWW SSB Contest from Barns Ness

1A, 2B, 3D, 4D, 5A, 6A, 7D, 8C, 9B, 10D Answers from December 2017 newsletter “Test Your Knowledge”. 14

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Elements 201712  
Elements 201712  

Here we are in December at the end of another club year. Has it been a good year yes, I certainly think so and in next month’s editorial I w...

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