Issuu on Google+

AnatanrRadlo Vt/nr/d WdefrfandslrlpThroagh

ffiew$ffi*effitr Irrty Editorial

Vrlilre7,1${o7

Visitors

frornVE

Land

On Tuesdayevening8th June I, (GM0NTL) was SadlyI haveto saythat I am writing this editorial at the very end of my annualholidaysandby the time you all visitedat homeby Bill HardieVE3EFX andhis XYL Tess readthis I will unfortunatelybe back into the full swing of \fE3HIR. I'd spokento Bill on severaloccasionson l{F things. As alwaysat this time of year a timely reminderto and also worked them both last month on FIF using "watch what one does say" over the air, as you never 2SONTL. Bill originallycomesfrom Hawickandhe'dpromised know who is listening. This year during my trip to SpainI took alongmy SONY to drop in andseemewith someQSL cardsduringhistrip Receiverto seewhatI couldhearbut moreon that later. acrossto Scotland.Idecidedto take them down to the "Ship"to meetsomeof our club membersbut as it turned So what has happenedthis month. Well there have out onlyRon GM4IKU andCambellGM1AVA werepresbeen contests,6M Trophy, PW QRP Contestplus our ent. However,we all had a good chat with them andit was own 10M Contest.As I write this someof the aboveare niceto seesomenew faceson a Tuesdaynight.Both Bill still to happenbut I am surethat fun will havebeenhadby and Tessare still very keenhamsand spenda lot of time all andthat fuller reportswill be written in the future.Also on the radio with Bill's main interestthesedaysbeing in this month the club put on a DemonstrationStation at Satelliteworking. I hopeto arrangea skedwith them on their returnto both the Cockenzie& Port Setonandthe MacmerryGala Days, againhopefullyfuller reports on these at a later Kincardine,Ontarioand I'11publishthe detailsfor anyone stationsasbig as- that'sinterested. date.I personallyseethe demonstration setsto the club calendar.Yes I know we sometimesget from "JoePublic"but if at some 73 Ron GM0NTL someor evenno response point in time it doesproducea future Amateurthen we havedoneourjob. We mustrememberit is a usefultool to Novise Glass sell this greathobbyofours so we shouldtake everyopportunityto do so. H To eventshappeningthis month.Obviouslythe 2 big eventsof the month are \lHF Field Day which is this weekend,if you can't comethenwhy not work us to give us somepoints,and the other eventis the IOTA Contest from Tiree.Good luck to you all with that one.Thereare other contestsaroundon the VHFAIHF front but I am not sureifanyoneis takingpartin theseor not.

I am once again undertakinganotherNovice Class plus a possiandI haveat this point in time 4 candidates b1e56. I ammentioningaboutthe classin caseanyoneof the abovecandidates decidesnot to take the coursethen it would openthe door for possibleothersthat maybe interested.Due to limitedspaceandfacilitiesthe maximum that I cancaterfor is 4 people. This year there is a significantchangeto when I am Throughthe editoriall would like to remindyou all runningthe course,which might not suit everyone.This is about our Junk Night in August. As alwaysin that event, unfortunatelydue to my work asI can not guaranteethat aswell asturningup, my contributionfrom you would be I will be availablethrough the week, so the changeis that most grateful.i.e. the homebakingfor the refreshments,I amrunningthe courseon Sundayafternoonsfrom 13:00 Raffie Prizes(thesecan either be given to me beforehand to 17:00insteadaf2x2 hourlyeveningslots.I hopethis or you canjust bring whateveralong on the evening)or changewill work out ok but I canonly try it. To be honlastly any monetarydonationto help to cover the costs. est I have enjoyedtaking the courseseventhough they Rememberwhatever we make on the night, along with have been difficult at times and knowing that there are what we have alreadyhave raised,is donatedto our peoplevery interestedin takingthe courseI couldnot let adoptedCharitythe British Heart Foundation.Thanksin themdown. I intendstartingthe courseon Sunday28n Augustin advancefor whateverhelpyou give. preparationfor the December1999NoviceExam.If you Ok that is it from me asainthis month so eniov the know of anyoneinterestedpleaselet meknow ASAP. newsletter. Bob GM4IJYZ

Bob GM4IIYZ


A.R.C. Cockenzie & PortSeton

Events

Page 2

Golrrrnn

Once again here is the program of club events scheduledfor the coming months. lt is very disappointingthat out of a total membeishipof some +o oJa regulars at the club night only a nucleusoiabout 7 or eight iegulirs take fart in these activities Or is it just a drinking club you want? so why not come along and support YOUR club and ENJOY yourselfl ',.,,',,.:..,', r,-,,,', .,i'", 1..,,',-', ,,,1t.,.,.,.-' ,r,i.r't,,, , ,,,,:.t'l''-,..GM4IKU,

Time for the big oneagain...VHFNationalField 18th GMDX Convention,the GMDX Groupsvery Day! Herearethe detailstogetherwith all the other own conventionwhich will be held in the King in the area... RobertHotel, Stirlingandstartsat 12.30.Afteramateurradiohappenings noonlecturesinclude"AntennasFor TheDXer" by ChrisGM3WOJand "TheZL9CI Expedition"by JULY 2nd Club night in the ThorntreeInn, Port Seton, DeclanEI6FR.The latterlectureincludesthe first UK showingof the ZL9CI expeditionvideo!! In the 7pmtill late eveningthe GMDX Groupannualdinnerwill take 3/4th RSGBVHF NationalField Day at place.Entry f,5 conventionandf 14dinner. 14-14UTC. We hope to be on MainslaughterLaw 19th ScottishAmateurRadioConvention sitebetween9 and 10amto setthingsup in time (SARCON), McRobertPavilion,Ingliston.Doors for the 3pm start.As ever,activity should be on 7jMIIz, l44NftIz,432\/tr{z and 12961vfr12. open10:30am(10amfor disabled)until 5pm.Further info from TommyMenziesGM1GEQon The morethe merrierso comealongandlend a handor practiceyour operatingskills.Alternatively Tel.No.01314453928.I expecthelpwill be reall contactson thesebandswill be appreciated. quiredagainso watchthis space. (3.5& 7MI{z CW) 24/25thLeicesterAmateurRadio& Electronics 4th RSGBLowPowerContests *SEENOTE* Exhibitiona few from the club normallytravel l.lth 2ndRSGB50MHzBackpackers Contest11- to this eventso askaroundfor info. OCTOBER l5UTC lst Club night in the ThorntreeInn, Port Seton, l7th RSGB l44l\/tr12Low PowerContest147pmtill late 22UTC *SEENOTE* 15th Video Night in Port SetonCommunityCentre 18th RSGB432l\/trIzLow PowerContest08MeetingRoom(upstairs)from 7.30pm-9.30pm 14UTC"SEENOTE* Videosshouldbe "Aerial CircusG6CJ"and 24/25thIOTA Contest1999(12-L2UTC).This yeartherewill oncemorebe a club entryfrom the "SatelliteFuji".Normalf,l entryapplies. Z4thGalashielsRallv. ContactJim GMTLUNfor islandof Tiree in the InnerHebrides.At the moment9 or 10peoplearemakingthe trip. Look out furtherinfo. for us on 40m or 80min the lateevening.Contact NO\rEMBER JohnMM0CCC or CambellMM1AVA for more 5th Club night in the ThorntreeInn, Port Seton, 7pmtill late info. 12th GMDX GroupAGM AUGUST Thorntree Inn, Port night in the Seton, L9th "Contesting"atalkby Tom Wylie GM4FDM. 6th Club Tpmtilllate Starts7.30pmin Port SetonCommunityCentre 13th AnnualJunkSale,CommunityCentrs,Main 27th Proposeddatefor the club ChristmasMeal. Hall, Port Seton.Bring alongyour own 'Junk"andsell it yourself.Tableson a First Come ** NOTE {<**TIIE CONTESTSABOVE WHICH First Servedbasis.Entrancefee f I for everyone. REFERTO THIS NOTE ARE THOSEWHICH THE CLUB "MAY" TAKE PART IN. THOSE MoneyRaisedDONATED to the BRITISH F{EARTFOLINDATION.6.30pmto 9.30pm. WITH NO REFERENCETO THIS 2ll22nd LighthouseWeekendat BarnsNess.Yet NOTE ARE ALREADY DEFIMTES. anotherNorthernLighthouseweekendat GB2LBN.Lots of fun andfrolics by the sea! Seeyou asainnext month. SEPTEMBAR 73 de Colin (GMOCLN) 3rd Club night in the ThorntreeInn, Port Seton, 7pmtill late


Cockenzie & PortSetonA.R.C.

Receiving

Page t

Abroad

My summerholidaysthis year, along with my XYL VK's about5&9 for aboutan hour-Thesewerebeingthe only Yvonne, we venturedfor a week in SunnyBenidorm on stationson the band.On the sameday on 2A, 15 and l8M Aweekyoumayquestionwhynottwo \{K's and JA's plus all the normalEuropeanstationswere Spain'sCostaBlanca. is that both Yvonne and I feel that a heard. The other 2 daysthat I listenedI am afraid nothing The reason in the sun? weekis enoughfor us plus we both fanciedtouring someof reallyexoticwasheardplusthebandswereonly openasfar as Scotlandduringour secondweek.A hugecontrastI know but 15M. Overthe 3 separatedaysof listeningI found myselflisI mustadmitvery enjoyableall round.Thebiggest differencethat is very obviousis costs, my head.(I had no choiceas I didn't haveany apart from the weather.At home the touring paperor a pen with me to write any'thingdown). holidayfor two nightscostaboutthe sameas 1 week in Spain,no wonderwe all go abroad. ,'Listeningwhilst lying To be honestI enjoyedthe CW more than I did the sSB listening.I know that Ron GM0NTL has Enoughof that andbackto my topic. sururarnrng I decidedthisyearthat I would takealong my Sony ICF-SW7600Greceivei whilst on holidayin Spainjust to seeif there were any only ever heard 2 GM's and they were both on remarkabledifferencesin reception.The Sony y* I didlear a few.SM's on SSB who were receivercovers all the HF Bands with all rea9Y all a good 5&9 so the bands were open to the sonablestrong signalsbeing receivedok using the attachedwhip antenna.Better receptionis achievedby at- North. Overall I was a bit disappointed in what I heard as it apr taching the Sony supplied Compact Antenna (wire) to the peared no better that here at home, ah well maybe the next whip and extendingthe wire asfar asit canstretch. I first tried listening to all the IIF Bands whilst in my visit will be better. For your information on my 4 days touring around Sadlyto say bedroomtryingboth the whip andwire antennas. nothing much was heard due to the excessive Scotland although I had taken my 2W70cm and 10M radios I that electrical I tried never were around. Over the course of the week actually switched them on, basically I never found time noisesthat procedure in not sadly every I was very to do Strange though when we visited John O'Groats the same but case so. this Apart from trying to listen whilst in our room I gentlemanwho takes the official photographsturned out to be successful. also managedon three different dayswhilst lying sunbathinga GM8. How did I know well his car was parked next to his under the shadeat the pool. The pool in the hotel that we booth with the door open and the Orkney repeaterwas boomstayedin was actuallyup on the roof. On all three daysthat ing out the speaker?Yes I did have blether before you ask. we usedthe pool we managedto get a positionwhereI could Just goes to show you eh! I wonder if any of you have taken your receiver's run out the Wire antennaand it was not in a positionto be tripped or fallen over by anyone.On eachof the daysI lis- abroad and I wonder what your results were like? Why not tell tenedfor about approximately3 hours on differentbands.On us all? So to the next holiday and SW listening. Bob GM4UYZ only 1 daydid I hearlOM opento VK managingto listento 2

.:

::'1ff'#"*Y'#':T fJ'i':::tr;#.:"Ti

a''hep"'Ii" rjl?;#*f1ikj**n*#;?

Port Seton GaIa IDay Station On Saturday12 Iune, the club put on a demo stationas last year. Unfortunatelythe wx was poor with a very wet start to the daybut it fairedup asthe afternoonprogressed. The tent was donatedby LongniddryScoutsard was erectedby Euan (2M1EUV ) and his brotherCalum(2MIDZS ) with the help of a friend. WhenI arrived on site, which was in the park adjacentto the CommunityCentre,I was greetedby Ron (GM4IKU) andBill(MMO BI(K ). While we waited on the arrival of the tent, we setthe radio up in the my car but found the bandswere in very bad shape.We then had the arrivalof Robert(MMIBQO) and Cambell(MMIAVA). Robertkindly supplied2 very largebatterieswhich kept us going all afternoonandthe antennaswere suppliedby Tom(GM4LRU) and Ron (GM4tKU). The stationwasduly setup in the tent andRobertalsosetup his IC706andtried out RTTY etc duringthe courseof the day. We got on the air aroundll-15Z, usingthe callZS4UYZ,andmadea coupleon contactson 40 metresthenI took the decisionthe work on 20 metres.We were all pretty hungryby this time, so Cambellwent to the local cafeand cameback with bacon rolls andcupsof cofee whichwent downa treat.Thanksfor that Cambell! We did not havemanyvisitorscomingto seeus, duemainlyto thewx, whichresultedin all the eventsbeingheldin the CommunityCentrebut we did havea shortvisit from Liz (2MLGLD ) the motherof EuanandCalum. The stationwasclosedat l5 0AZafterhavingmade42 contactswith 17 differentcountriesaroundEurope.Not at all badin my opinionespeciallywith conditionsbeingasthey were. I havedecidedto setup a similarstationfor MacmerryGalaDay whichwill be heldon Saturday19Juneandcanonly hope that the wx hasimprovedby then. Ron GMONTL.


Cockenzie & PortSetonA,R.C.

Page

Arrraterrr Anagrartrs It's brain achetime again.Anagramsof words with an AmateurRadiolink aregivenbelow.Whenyou figure out what the representspaces betweenwords.Whenthe wordsare,theycanbe enteredhorizontallyin the grid provided.Any blacksquares grid is completedcorrectlyyou shouldhaveanotherword in the highlightedverticalbox. Seehow well you get on this month....

V 1. 2. 3. 4. 5. 6. 7.

Thismonthscluesare... 1.cop DUEL, 2. A MORTAL COP,3. OUTERMOST& 4. SEENVISIT, 5. IRONING TOM" 6. NOT CONNTVE, EARTI{LYPEG JUNE T999ANSWERS BALANCED,6.CONNECTOR" I. COVERAGE,2.MAGNETICSTORM,3.DISTORTION,4.CURRENTPROBE,5. 7. PENTII'M The vertical word last month was 'ENTRANT".

73 Colin (GM0CLN)

Glub Vistt The Followingwas receivedby Bob GM4UYZ Following Kent'svisit to our lastclubnisht Subject:Thanksfor visit I wouldvery muchthat you sendmy bestregardsto all of the membersin the club. I had a very nice eveningtogetherwith you, which I will rememberfor a long time. Pleaseexpressmy wann greetingsto Kennythat madethis possiblyfor me andthe way he was engagedin settingme offat the airport andeverything.I really appreciatedthat. I did look throughmy log whenI returnedhomeandfound that we havenot beenin contact,Bob, but I havebeenin contact with other membersof the club. GM0IILK and GMOICF/?both from 1997but I havenot receivedanyQSL cards.Also GMOWDF,Johnandmanytimeson 2 m Aurora from Stockholmwith GM4IPK. I hopeI will be ableto work more of you nicefellows and maybealsoseeyou all again. Onceagainthanksfor a niceeveningbestofgood luck to you all. 73'sde SM0ELV,ON9CLV Kent


A.R.C. Cockenzie & PortSeton

^ finnrral

Tables

Page5

Updatc

Cockaqrie & Port $9ton ARG Alnpal VHF/UIfF Tabte As Of t€gr Jlrne- 1909 Last SOilHz Usdfito etrv Ssr tSJun-gg IITMOBQI 13-Jun0 o dMoccc f 9-Mav-9€ 2 3 o o ?M4uY.E 1&May-g{ 16^Jun-991 0 s n 'OCLN GMONTL 16-Jun-991 0 gellaaqn

144MHa

TOMHZ

Ctrv

gor

o

o

t 7

2

o

o

0

Ctrv I 4 2 2

5

o

Sqr

432MHz Ctrv Sor 3 I

Tatsl

z

7

1 1

39 15 I

2

4

4

o

o

2A 22

giand Total

1€,7

29

73 37

14

1B

4

2

1

l'quarE Total '128 58

3

5

VHFAJHF $cores are th€ lotal number of DXCC countries and Maidenhead locator squares $rork€d on each band.

Cockontie S PgnFo-tqn ARC AnnUCLHFTaple A$ Of :t6& {un6 tggg Last Llndatc

B .nd

(irianq

tMH z)

1. 8

3.5

7

to

21

21

32

0

4?

2

33 18

AR

o

o

18-Jun-gg t9{ilay-9{ UMT}AMV 1 1-Jun-99

2

?s

20

16

o

s1

2

3M4UYZ 16-Mr

o

25 42 16 3

:allsien BQI

3MONTL

[noBEx

14

15-Jun-99

l6'Jun-gg 10-Jun-99

GMOCLN

o o

o

1

J

5M4e\,/J

2O-Jan-€l€

o

z

t)

3M4WLL

13-Jun-99

0

o

o

0

u

18

21

36

63

24 z3

2A

Total

34

339

335 6 2

24

o

10

I

46 36 13 10

I

10

1

o

0

o

o

1

o

12

18S 143

a7

t(}ral DXCC

1?O 139

s3

69 51

g

61 41

46

a

I

I

2A 7

HF Scafes are the total numher of DXCC countries wsrked on each bandffi,-q-',ffiffi-';;q = Band Leading score For Each Band

Annual TablesUpdateAs Of 16thJune 1999 on the bandsthismonththen?Not too What'sbeenhappening muchis theprobableanswer.Lots of peoplehavebeenbusy with holidaysandothersummeractivitiesso therehasbeena noticeabledrop in new onesthismonth.Thenew2N2S/27 prefixesarestill availableuntil 3lst Julyso makethe mostof it! Someof this monthshighlightshavebeen... Ron GM0NTL/2S0NTL hashada very quiet monthwhich is in total contrastto 1000plusQSOsin hislog the lasttime.I guesshe burnt himselfout with all the talking! His new ones this monthare...141vff{z:Mexicop(E\;ZaTvfIIz:AlandIs. (OH0); 29\/ftIz: Guyana(8R). An increaseof 3 on [IF. David GM4WLL/2S4WLL hashad a quietermonth,mainly dueto nappychangingduties(congratsagainDavid). However,he hasmanagedadditionson both 4m and 10m.They were...zSIvIHz: Cyprus(SB),CzechRepublic(OK),Hungary (HA), Slovenia(S5); 70MHz : IO77(GM).Plus4 on IIF and 1 moreon VHF. WallaceMM0AMV/2A0AMV fell victim of work with no additions,ashe hadno time to playradiol monthwith a few JohnM0BEX hashadanotherreasonable usefuladditions.His newonesare...TNfrIz: N.Ireland(Gl); lfil\ftlz : Azores(CU),Lichtenstein$fBO),Luxembourg(LX), Belgium(ON)"Denmark(OZ),USA(W); lSMI{z : Japan(JA), 24WIz : Greece(SV);2l\&Iz : Uganda(SX),Slovenia(S5); An increase Zambia(9J);28MI{z: Libya(5A),Sweden(SM). of l4 on FIF. A very activemonthat GMOCLN/2S0CLN.This was helped

greatlywith someaccessto 7MIlz,lOMHz, l8Mllz and 24A&lz New onesthis monthhavebeen...TWIz . Germany (DL), Eire@I),Belarus(EU),France(F),England(G),Wales (GW), Italy(I), CzechRepublic(OK),SlovakRepublic(OM), 5), Poland(SP), Belgium(ON),Netherlands@A), Slovenia(S EuropeanRussia(UA),Asiatic Russia(UA9),Ukraine(UT), USA(W); l0MIIz : Italy(I), EuropeanRussia(UA);14Mt{z : Belarus(Ell),IsleOf Maa(GD),Jordan(fY),Belgium(ON), Denmark(OZ),Bosnia(T9),Iceland(TF),Kaliningradsk(UA2), Uzbek(UJ),Romania(Yo);18MHz: Croatia(9A),Guadeloupe@G),Hungary(HA),ItalyO, Japan(JA), US Virgin Is (KP2), Bulgaria$,2), Finland(O$, CzechRepublic(OK),SloPoland(SP), vak Republic(OM),Brazil(PY),Sweden(SM), AsiaticRussia(UA9),EuropeanRussia(UA)"Ukraine(UT), Canada(VE), USA(W),Romania(YO),Gbraltar(ZB); zll:s/*Iz: Georgia(4l),US Virgin Is(KP2),Bulgaria(LZ),Romania(YO),Macedonra(23);Z Wlz : Libya(SA),Germ! any(Dl.)-Thatmeans56 moreon HF Yet anothergoodmonthfor JimMM0BQI whichat long last seeshim squeezing his way to the top ofthe IIF tablein addition to the leadhe alreadyhason VHF. Well doneJim!His new additionswere... l.SMlIz : Croatia(9A),BalearicIs (EA6), Antarctic(EM),Belarus(EW),England(G),Slovenia (S5),EuropeanRussia(UA);3.5MIIz : Antarctic(EM),Belarus(EW),Guernsey(Gl),SlovakRepublic(OM),Sweden (SIvD;TMHz : CanaryIs(EAS),Moldova(ER),HungaryftIA), Denmark(OZ);lOMHz : Moroco(CN), Cuba(CO),Market Ree(OJ0); l4Mllz : Antarctic(EM), Scotland(GM),Svalbard (JW), Corsica(TK),Kazakh(IJN),Venezuela(YV);l8MHz : Morroco(CN),St PaulIs(CY9),CanaryIs(EA8),SanMarino (T7); 2tVfrlz : Cyprus(5B),Moroco(CN), Jordan(JY),Lebanon(OD),Crete(SV9),Hong Kong(VS6),Bulgaria(YO); 24\,frI2 : Zarbia(9I), Palestine@4)Z8tvftlz : Croatia(9A), France(F),HungaryftIA), Lichtenstein(IB0), CzechRepublic


A.R,C. Cockenzie & PortSeton

Page6

(OK), Slovenia(S5), reso50MHz : 41 new squares mostelements areresonanton 6m, and4 innerelements Sweden(SM); andthe followingnew countries...CanaryIs(EA8),Estonia nateon 4m. Thisis a very shortboomlengthyagi andis ideal for his QTH ashe is restrictedto 2 chimneyson the roof to {ES),France A total of46 new oneson F{Fand9 countries/4lsquareson supportmasts.On 2m the stationis eithera KenwoodTR75le (@25W),or a Mutek TV\iFl44a (thistime drivenby the VHF. JohnMMOCCCis the subjectof this month'sfocus.Located l000MP via a PTT switchingresistivenetwork),together with a Tokyo l20Watt solidstateamplifier.Thisfeedsa lOele in Tranent,JohnusesanFT1000MPbarefoot(@100W)on mountedabout2ft abovethe TeleLog Periodic. HF to a ll2 sizeG5RV.With the FTl000MP tunerthis covers Jaybeam, Johnsays"unlessI moveQTH, I cant seeme getting QRV on from TMHzup to 28MHzand,at a push,somepartsof 70cmSSBdueto the spacerestrictionsfor firrtherantennas, 3.5MHz.Johnsaysthe wire anteilnaandlow(ish)power however,hopefullya solidstateamplifiercanbe addedfor 4m meansworkingDX stationson SSBin a pile up is difficult, however,despitethis JohnhashadsomesurpriseDX already fairly soon".He continues"4m usagelookslike increasing, andthiswill be compounded by the recent4m allocationfor thisyear.He admitsto havinglet his CW slip a bit andonly everventuresontotIF CW duringthe contestsas,in all hon- Slovenia(s5) andthe forthcomingPoland(SP)allocation,I esty,he "can'tbebotheredwith the longdrawnout formatof wonderif RadioGdanskhasgoneQRT? someCW QSO's".To improvehis stationJohnhopesto adda second,probablyverticalantennafor either21 or 28MHz.He Pleasemakesurethat I receiveyour nextupdatesby Wednessaysthat in the interestof neighbourlyharmony"anincreasein day2lst Julyat the latest. dBW is NOT an option". That'sall for now so 73, goodDX andI'll seeyou againnext On \{HF Johnis QRV on 6m,4m, and2m.The6m and4m Mutek TWF57a by month. consists of a trarsverter, driven station theFT1000MP.The l000MP hasa dedicated transverterport ColinGM0CLN whichmakesthe stationthat bit simplerto use.Theantennais a TeleG3FDWLog PeriodicYagi, of which,the threeouter-

Practical

Wireless

QIIP Gomtest

Onceagainwe departedon Sunday20th Juneto our normal FathersDay, his Birthday andalsowinning the TennamastTroLaw. the operatingteam phyl! VHF Contestingsiteat Mainslaughter this year being Colin GM0CLN and myself with Cambell MMIAVA! JohnMMOCCC,Iain MM1CPP and lastly Ricky I spoketo JohnMOBEX,my work colleague,on the Monday section.He GMIPLY providingthe physicalbackup.Ron GM4IKU just to seeifthey had beenout to do the backpackers cameto checkthat we had doneeverythingright. This year we saidthat they hadandthe conditionsfor themwerejust asbad The only Scottishstationthat they heard used 2 x 14 MET Yagis stacked horizontally polarised,as we experienced. switchablewith a 10 ElementYagi in the verticalposition.The wasDavid.Eventheywerewonderingif we hadwent was out for the contest.Anyway one consolationwas that Band top aerial being20 feet off the ground.Accommodation the luxury of a caravan,manythanksRicky for allowing us to conditionswerebadall round. contestin luxury. Our best DX was G0KYS/P in IO91GI Squareat a total of They say that at Midsummerit shouldbe hot and sunny.I am 505km. afraidto saythat it did not happenin this yearsPW Contest. While settingup everyonewas so cold that we could hardlyfit That'sit thennot our bestevercontestbut still enjoyedby evethe nuts on the aerialclamps.Later on duringthe daywe were ryonewho wasthere,anywaythereis still nextyearscontestto in the midst of extremelyheavy showers,thunder and lighten- look forwardto.... ing alongwith hailstonesthe sizeof pennypieces.Summer... you mustbejoking! Bob GM4UYZ The bandconditionswerethe worst we haveeverexperienced in all the yearsthat we havetakenpart in the contest.It was so bad we thoughtwe had radio and aerialproblems.The only dim lights to brightenthe day and get us on the edgeof our seatswerea few meteorburstsanda short2 to 3 second burstofltalian. Overallour results,54 aontactsand14 squares, are well down and we know we were beaten by David GM4WLL/P so we won't be retaining the Frank Hall (Tennamast Trophy)thisyear.HopefullyDavidhaswon it (nice to seeanotherclub memberdo well) and, if he has, it couldn'thavegoneto a betterpersonas he works hard on all the \{HF/IIHF Contests.He thoroughly deservesthe win and musthavethoushtit washis luckvdav....

For $ale I havea tower/trailerfor saleit is not of the latticetypeit is of the antennamastsortwith the squaretubingit is 3 sectionsandgoingup to 30ft full extended. I am lookingfor f 150for it. Can'becontacted at either my Email address at WeeDevil2@aol.com or my mobile (0468-037990) number ' :' ' .,ft6ss' swl:Rs174245 ,' '


A.R.C. Cockenzie & PortSeton

Introductiorr

Page7

to llatacorrlrrrs

Sometimelast year I promised Wallace/MMOAMV I would a lot! do I hearonesay...well ifthe aboveis waterof a duck's ... write an article for the newsletteras an introduction to data- backtherestshouldbe eveneasier. devicessuchasteleprintersor telexmacommsandtry andtake someof the mystiqueout of what is ba- Electro-mechanical chinesof a bygoneeraandmoderndaycomputerswhichhave sicallya very simpleform of communications.... oo "Cafe de Joe's Introductionto Data-Communications... takenover for transmittingdataarenot so cleveraswe areled It would of coursebe impossibleto enterinto this subjectwith- to believeandcertainlycannothandlesuchcomplexbasesas out a very simpleand hopefullyentertainingand painlesscover- ten. Rememberwhenyou switchedthat light on andofl Well age of the mathematicsnecessaryto get a grasp of data- that is the extentoftheir understanding - the simplestbasepospage I ie 2........ base andreadethno more sible0 or conms....so beforeyou flip over the of this tome...just walk over to the first electriclight switchto From now on rememberthat we canonly havea 0 or I and hand and flick the switch on and off and then say to yourself nothingelse...so dontbe greedy. Let us look at base2 then,represented by a nastylookingbeas"I've crackedit".. like.... 1101. No not your super duper osram fully halogenisedlong life tie something take the decimalequivalentof base2 aswe "ampoule"(kermit-talk for bulb or valve). Justthe basisof data But is it so nasty??? didwith baseten.... coflrmseg on ofl highlow, 1 0, markspace,plusminusetc... of decimal8 It is difticult to sayexactlywhereor whenwe mathematically 2'ie (2x2x2) is theequivalent 2z:4 adoptedten asour basefor countingbut it is mostdefinitely " t -t linkedto the influenceof the abacusfrom the Orientwith its stringsof ten beadsor eventhe possibilitythat homosapienwas 2o: either 1 or 0 bornwith five digitson eachhand...whateverwe shouldcon- Binarynumbersareshownasa stringof l's and0's eg 1101 wherethe left handdigit is known asthe msb(most significant siderourselvesluclcythat we didnt continuedown the road of bit) andthe right handdigit the lsb (leastsignificantb10 whosebasewas60 from whenceour the ancientBabylonians 101 I time notation60 secsoneminute60 minutesonehour and360 msb lsb degreesin a full circleoriginates.Or evencloserto homethe Romanswho had no 0 in therenumericalsystemand subtracted Using only the four powersabovewe shouldthereforebe able from 0000to 1I I I . to ascertain, the decimalequivalents by placinganynumberto the left if it waslessthanthe next.. 1=I Powerz222 5:V 4 2 1 Decimal 8 4: IV 0 1 Binaryexamplel 1 andto the right you addedthe two Addingonlythe the decimalequivalents of the numbersrepreVI=6 sentedby 1's andignoringthe 0's in the exampleabovewe have The Romansthencebecametraumatisedwhenit cameto multithe decimalequivalentof 13viz a highon 8 a high on 4 a low plicationanddivision.(Didnaestopthemconquering England on 2 andhighon I giving8 + 4 + I a total of (decimal)13.... eh?Oops sorry AncientBritain) deadeasyeh??? Questionfor the nextquiz nightwhatbase10 numberdoes exerciseI (andthe only one).... MM0CCCrepresent....? 0000:0 Sowe canthankour lucky starsthat we arestuckwith base10 0001: I andof coursewe all know that 0010:2 3 rois 1000 0100= 4 2rois 100 1000: 8 lroisl0 Write down all the binarynumbersbetweenI and 15that have I dont remembereverbeingtold that 10is anysingledigit bebeenomitted eg3 5 7 etc etc until you reachan all time high eg tween0 and9 maybe(GrannyScott my first teacherusedto tell 1111for15 us that the first stringof beadswasfrom 1 to l0 andbelieveme clue1l0l unluckyfor some..,. nobodyarguedwith GrannyScott...Tawsetawseand"You 1011legs.... youl" moretawse). dunderhead Everybodyhappy???? PokeofPandropsto the first onethat As an aside(andnothingto do with datacomms)it canalsobe shouts bingol!l! saidthat numbersexistingbetweensayl0randl0z Thereis no needto go into binaryaddition,substraction or eg 10rawhichis obviouslya numberbetween10 and 100in this more complexlymultiplicationor divisionwe will leavethat to case64 sothereforeif we added10r.eand l0r.aitwouldgiveus theexperts... 10:otheequivalent of multiplying64by 64 ie 4096....this methodcalledlogarithmswasinventedin the mid seventeenth Lets now look beyond2: by continuingto multiply by 2 andyou centuryby a Scotsmanknown as Sir JohnNapier,Earl of Merwill noticewe start arriving at numbersthat will becomefamiliar chistonthe first true stepforwardin the simplificationof calcuto mostPersonalComputerownerswhenwe switchon and latingmodernmathematics sincethe abacus.In my dayit wasa watchthe screenduringthe POST(poweron selftest) .... book oflog tablesnowadaysa lessthanpocketsizeblackbox 2rdecimal16, knownasa calculator.... not a lot! not Sowhat hasall thisto do with communications??? 2 deamal32-


A.R.C. Cockenzie & PortSeton

Page I

2rdeamal64, 2 decimall28, 2"decimd,256, 2 decimal512 ,o andthebiggy2 decimal1024..... to memoryit is wheneveryou seemegaon your pc in reference not onemillion straightbut onemillion andtwenty four thousandthingie-ma-jigs... Anotherasideto giveyour minda restbeforethe next step... Many of us get confusedby what is known asBCD binary codeddecimalandstandardbinary....BCD is simplya way of representinga binarynumberin decimalform to give for examA. ple a presentation suchasfrequencyon your rig, usingeithera sevensegmentled displayor liquid crystalin the more Taking the simple circuit above with two teleprinters connected "corstorphine"rigs... directly to each other, it is obvious that without some form of eg you will agreethat26 in binaryis 11010(highon 16 highon circuit and charactersynchronisationa string of 1's and 0's 8 anda highon 2 (16+8+2: 26).To achievetheBCD equiva- when sentto line would appearas a jumble of indecypherable lent I1010 is processed throughwhatis knownasa Binaryto charactersat the other end. The machinesthemselveswere so BCD decoderandwe endup with the following... designedthat they came to rest at the end of eachtransmission Binary11010 period in readinessfor the next (Stop Start mode). Also there is BCD001001 l0 a necessity for the teleprinter to identifr the beginning and end 10 or 0010-01 of each character whether it is letter, figure, punctuation mark Decimal26 or function. If we havegot this far andhopefullyall is understoodwe can For simplification we will refer to a 1 as MARK and 0 as startthe practicalsideofthings....to do this i amgoingto take SPACE. you backto neanderthaltimeswhenwe usedelectromechanical On the cofilmencement of each character or at the start of a devicesknownasteleprinters.... transmissionperiod the first thing that would go to line would Sinceour alphabetconsistof 26 letterswe do not needto go be what we refer fo as the START SPACE ie "0" which would 1) including0 givany furtherin base2 than2sie (16+8+4+2+ kick the receive teleprinter into action... after the start spacethe morethanenoughto coverA to ing us 32 uniquecombinations, characterto be transmittedwould be sent eg the letter A 11000 Z. ending with the end of character function which was known as Startingwith binary00000andendingwith I I I I i. the STOP MARK which was "1" plus half (in time) of another egletterA: 11000. "1". the letter A would look similar to the graph letterZ = 10001 below.... So what aboutfiguresandpunctuationmarks? ." ,, devicesuchasa teleprinter, Simple,on an electro-mechanical I II availableto move you provideoneofthe six extracharacters I II thetypebasketasin an old fashionedtypewriterbetweenupper ' 0' --.-.I I ------------I case(letters)andlower case(figuresetc) giving you a further 000 s/s t 1 s/m if required.... 32 permutations In ITA2 (Baudot-code) eachcharactergoingto line alwaysconThiswasachievedby sending11111to linewhenyou wanted tairs sevenanda halfbits (pleasenotebitsnot bytes)of infor(capital)lettersprintedand I1011 to linewhenyou wantedfigmation..two andhalf for circuitsynchronisation andfive bits for uresor punctuationmarks....the four remainingnon alphabet the characteritself.. permutations took careofcarriagereturn,linefeedandspaces Tralsmission speedknownasthe baud(bit) ratevariedbetween betweenthewords.... 45 to 300bauds(bits)per secondforIIF working.eg ifeach This codeshownbelow wasknown asITA2 (International (1/10sec)at 7 andhalfbits characterperiodis l0 milliseconds TelegraphAlphabet2) othernamesareBaudotor Murraycode per rate is 75 baudsper second... then character character the andbecamethe basisfor (almost)all future automaticsignalling Amateur baudrateis generally45 baud. eithervia landlineor radiountil the anival of SITOR(Slmplex The aboveteletypecircuit with tfc flow beingonly in one direcTelegraphOverRadio)andits amateurderivativeAMTOR..... tion at any onetime would be referredto as SIMPLEX operawith morecomplexsignallingto follow suchasPACKET,PACit wouldbe tion..if trafiic flow wasbothwayssimultaneously TORandCLOVER... knownasD{JPLEXoperation... Well we havetalkedaboutteletypecircuitsdirectlylinked.So how do we get thisITA2 BaudotCodeon to a radiocircuit. Nobodyarguedwith perfectlysimple...by givingthe l's oneaudiotone(1445lz) GrannyScot! andthe 0's another{1275lr) with a frequencydifference(shift) of 170hz andmodulatingthe transmitteraccordingly.Thisis


A.R.C. Cockenzie &PortSeton knownasAFSK audiofrequencyshiftkeyingandis by far the mostpopularin Amateuruse...anothermethodis to change the actualfrequencyofthe RF outputby 170hz shiftandthis methodis knownasFSK frequencyshiftkeying...It doesnt matterwhat two audiotonesare chosen(the Americansbeg to differ anduse2125and2295l1z)aslong asthe differenceis of an SSBfill70hz andtheyfall within the normalpassband ter. Thereceiverwith its appropriatedemodulatoror modem shouldbe ableto resolvethe signal (modulator/demodulator) perfectly...Rule of thumbin the old dayswasthat all data shouldbe in lower sideband.: transmissions The categorythat this type of transmissionbeforeever5rthing becamelettersandnumberswasknownsimplyasRadioTeleTypeRTTY andbecamepopularon the amateurbandsafter becamereadilyavailable... WWII whensurplusteleprinters now all rtty andits siblingsamtorpactor packetclover etc are almostall handledby PC's with modemcardsor externalmodemsandappropriatesoftwareto resolvethe various modes.... RTTY or Baudotis still a very popularpart of Amateuractivity but it doeshaveits drawbackssimplybecauseof the number ofbit changesI's and0's per characterwhichcanbe heavilyaffectedby IIF conditionssuchasinterferenceandfading. TheFCOPiccolosystem(Nov 98 PW) wasa big step forward in combattingthe shortcomingsof standardRTTY but neverreally caughton anywhereelse.Insteadofall the bit changesper charactera differenttone wastransmittedfor 320to 640h2eachtone separated eachofthe 32 characters to maintaincircuitslmchronisa33rd 650h2 10hz and a by

PageI

tion...Themodulator convertedstandardbaudotinto a toneeg the letterA was320 hz the letterB 330 hz andso on. Thedemodulatorreconvertedthe tonesbackinto standardbaudotto run a 75 baud teleprinter... It was not until the arrival of SITORusedby the Mercantile Marine radio servicewith its built in error correctionfacility adaptedfor amateur(AMTOR) useby PeterMartinez/G3PLX did thingschange..... As I saidthiswasintendedasanintroductioninto datacomms blurb was and someof you may saythat all the mathematics biunnecessary but ifanyoneofyou who did not understand narybeforeandunderstands it now we haveachievedsomething. I personallythink it is necessary to havea smidginof binary underyour hat to understandpracticallyall oftoday's digital technologyandfor thosethat don't theytendto shyaway from somethingthat is not reallyvery difficult andhopefullyI haveexplainedvery simply... e.g. TakeJanuary'sRadcomPic "Irf'Mix diagramon page19and you will seethatthe mainIC PIC 16C84outputsto a BCD to TSegdecodea 0,,. on linesRBORBI RB2 RB3.. Well for RB substitute2 2 2 2 yesgood old I 2 4 8 or a four bit binarynumberwith the least significantbit on RBOandthe MSB on RB3...a dawdleeh.. Best73's Malcolm/F5VBU/GM3LIIN CopyrightPort SetonandCockenzieRadioClub

10

L2

11

18

\(\ 1,9

/,1

25

11


BeWISH LmokOutYourJunk And YolirWallet, w&p w w t r w F s Fw w & .& w

J r t t J t JtttJtttt tuhnustsftg(HtUMlf & rAtnnArr. (-p

GIilfnE

Pm[SHI]t{

t 'E

IRINC|I.0I|OX)UI()LDIUNf, ANDSEIIIIKIDI0URSGIYES

(

&

-W

t -E

/*rrnns pnouDGD oNAHn$fsrHEnnstsEmGD *try'* ,r lilnAilgt rTr. ruI lr8l TtnonwEnloN[ f,, f r[f,Ilr[l[ r.rtf,rrrur.

(

Atttftry*rls|tlrttrDcdomtcdto

(

:F

rowp FT#ryPgtBuS*gn* w*r* t JJt t J ttttJtttJ -#


199907