The Villages Amateur Radio Club 2015 Antenna Guide For The Villages .
The Villages Amateur Radio Club2015 Antenna Guide for The VillagesFebruary 19, 2015February 19, 2015TVARC Antenna Guide for The Villages1
Antennas for The VillagesTonight's review of the antenna members have usedTonight's list of antennas will cover Multiband Antennas HF, 6M and some 2M/70cm Presenting the implementation for most used Description of layout with key PROs and CONs This is a shopping list, not DIY which will be in future presentationsFactors to be consideredThis is not the end all list, but the important issues RF Radiation Efficiency Installation Stealthy-ness Impedance Matching CostFebruary 19, 2015TVARC Antenna Guide for The Villages2
Small Antennas are a CompromiseStealth Antennas are a CompromiseMultiband Antennas are a CompromisePick one from the list below; You can make an HF antenna physically small You can make an HF antenna radiate efficiently at low angles You can make a broadband HF antenna with a wide VSWR BandwidthThis presentation isstep one of your plan;finding a solution foryour operatingbands/modesTerrafugia was approved by the FAA in June 2010, price 200,000.A Flying car is a compromiseFebruary 19, 2015TVARC Antenna Guide for The Villages3
Modes & BandsCompromiseSlicing a cakein such a waythat everyonethinks theyreceived thebiggest piece!February 19, 2015The right planning requires each operator tothink about which modes they want; SSB will require they best RF Efficiency available CW can operate on marginal RF Efficiency Digital can operate on marginal & poor RF EfficiencyThe right planning requires each operator tothink about which bands they want; 160M & 80M 40M, 30M & 20M 17M, 15M, 12M, 10M & 6MThe right planning requires each operator tothink about how each antenna presented canfit within your landscape Palms or Shade Trees? Villa Fences? Screen Enclosures?TVARC Antenna Guide for The Villages4
How Much “Punch” Can You Getfrom Different ModesQST Dec 2013, P30-32“You can target the DX station'soperating mode more confidentlywhen you know CW can out performunprocessed SSB by 17 dB andRTTY can out perform SSB by 11 dB.If you can't get them on phone, tryRTTY or better still, try CW.”February 19, 2015TVARC Antenna Guide for The Villages5
Modes & BandsFebruary 19, 2015TVARC Antenna Guide for The Villages6
Read every book on antennas or useVillages Antenna Guide to narrow the listVillages Antenna GuideAntennaFlagpoleScrewdriverFishing PoleTrapped VerticalPalm Tree CageRain DownspoutAntennaDipoleInverted VeeG5RV JrBuddipoleSlinky DipoleHelical-Coil DipoleWound Vert DipoleFence DipoleTAK-tennaAntennaOff Center FedWindomInverted LEnd FedRandom WireFlagpole LRain Gutter DipoleSpiral DipoleAntennaWL Horz LoopRain Gutter LoopWL Vert LoopMagnetic LoopOn BFOn DDDDDCDCDFFFDCDDCDFFFFCDFDFFFFFCFFFFFFFFBFOn DACDDDACDADDFFAFFADFFFAFFADFOn oteShackShackShackF“Villages Antenna Guide” is your shopping listFebruary 19, 2015TVARC Antenna Guide for The Villages7
How does my Mode matter to my antenna?“F” will workDigital depends on the specific mode JT-65 works on almost anything PSK-31 works well with a C or D grade RTTY requires a B grade for solid copyONCW will be successful with a C or D gradeAEver wonder why antenna ads rarely state modes?II have your XYZ up for about monthand I am busting pile ups everywhereand receiving 59's every time : - )RSSB will require an A or B grade in most cases“A” requiredFebruary 19, 2015TVARC Antenna Guide for The Villages8
Flagpole“Shorten” or “Loaded” MonopolesFlagpoles can easily be used as a 21 Foot VerticalPlanning is important factor in disguising your remote tunerA minimum of 32 radials for an efficient RFAntennaFlagpoleOn Air Stealth 160MDFCBBBBAACDDQST, March 2010, P 30-33February 19, 2015TVARC Antenna Guide for The Villages9
FlagpoleAntennaFlagpoleOn Air Stealth 160MDFCBBBBAACDDBefore we start what does the summary antenna chart mean?Factors are graded A best to F least, just like school On Air is the average RF Radiation Efficiency for 40M – 10M (most people)Each band is graded based on the radiating element size, height vs WLEach person can decide which bands are important to them Stealth is graded on how invisible or non-antenna like the appearanceTuner is the tuner location that drives the cost, site plan and landscapingInstall is the how much work is needed; like radials and landscapingCost is graded A for least to F most expense;Example the flagpole gets an “F” for high cost as it requires many costly items– Radials 200 - 300– Pole & Flag Kit 100 - 200– Remote Tuner 300 - 400– Underground feed line & protective conduit ?– Underground Power for Tuner ?– Landscaping ? This is a shopping list, not the DIY which will come in later presentationsFebruary 19, 2015TVARC Antenna Guide for The Villages10
StealthStealth comes in two forms; Hiding in plain sight by looking like a common object (Flagpole) Hiding in by being almost invisible (#28 AWG wire)February 19, 2015TVARC Antenna Guide for The Villages11
Flagpole“Shorten” or “Loaded” MonopolesBe sure to do a site plan Radial Placement Feed line runs Concealing your tuner Access for maintenance Power for remote tuner Power for landscape lightingPRO Stealth On AirAntennaFlagpoleCON Cost InstallOn Air Stealth TunerBAFebruary 19, MDFCBBBBAACDDTVARC Antenna Guide for The Villages12
PRO Stealth On AirCON Cost InstallFlagpole“Shorten” or “Loaded” MonopolesThe installation needs to look like a FlagpoleToday’s neighbors don’t care next year brings a different answerThe best rule is not to look like an antenna AntennaFlagpoleOn Air Stealth TunerBAFebruary 19, MDFCBBBBAACDDTVARC Antenna Guide for The Villages13
PRO Stealth On AirCON Cost InstallFlagpole“Shorten” or “Loaded” MonopolesA minimum of 32 radials for an efficient RF is step oneUsing an edger andhand installationcosts only the wireInvisible DogFence installerscharge 200 - 300AntennaFlagpoleOn Air Stealth 160MDFCBBBBAACDDQST, March 2010, P 30-33February 19, 2015TVARC Antenna Guide for The Villages14
PRO Stealth On AirCON Cost InstallFlagpole“Shorten” or “Loaded” MonopolesOne of the best ideas for disguising your remote tuner is a fiberglasswater well pump coverKeeps electronics hidden, dry and accessible laterDekorra 30-in x 23-in Well Pump CoverLowes Item #: 307793 54.98AntennaFlagpoleOn Air Stealth TunerBAFebruary 19, MDFCBBBBAACDDTVARC Antenna Guide for The Villages15
PRO Stealth On AirCON Cost InstallFlagpole“Shorten” or “Loaded” MonopolesDepending on the size and shape of your base equipment the disguiseyour can be made from plastic privacy fencing componentsKeeps electronics hidden, dry and accessible laterAntennaFlagpoleOn Air Stealth TunerBAFebruary 19, MDFCBBBBAACDDTVARC Antenna Guide for The Villages16
PRO Stealth On AirCON Cost InstallFlagpole“Shorten” or “Loaded” MonopolesTesting before digging is a great planning toolA tripod with a fishing pole will give you on air performanceExperimenting with radials before digging has advantagesAntennaFlagpoleOn Air Stealth TunerBAFebruary 19, MDFCBBBBAACDDTVARC Antenna Guide for The Villages17
Flagpole2014Hidden AntennaAward WinnerWayne N4FP“Shorten” or “Loaded” MonopolesThe simplest solution couldbe a hidden tilt up antennaAntennaFlagpoleOn Air Stealth TunerBAFebruary 19, MDFCBBBBAACDDTVARC Antenna Guide for The Villages18
Before the next antennaNow that the summary chart and planningconsiderations for any antenna has been explainedthe rest of the presentation will be antennadescriptions with any special considerations.February 19, 2015TVARC Antenna Guide for The Villages19
Villages Antenna GuideAntennaFlagpoleScrewdriverFishing PoleTrapped VerticalPalm Tree CageRain DownspoutAntennaDipoleInverted VeeG5RV JrBuddipoleSlinky DipoleHelical-Coil DipoleWound Vert DipoleFence DipoleTAK-tennaAntennaOff Center FedWindomInverted LEnd FedRandom WireFlagpole LRain Gutter DipoleSpiral DipoleAntennaWL Horz LoopRain Gutter LoopWL Vert LoopMagnetic LoopOn BFOn DDDDDCDCDFFFDCDDCDFFFFCDFDFFFFFCFFFFFFFFBFOn DACDDDACDADDFFAFFADFFFAFFADFOn ACCDBCDDADDDCDDFFDFebruary 19, hackFTVARC Antenna Guide for The Villages20
ScrewdriverPRO Built-In TuningCON 10 KHz BW“Shorten” or “Loaded” MonopolesBase loaded vertical normally used as mobile antennas. The small size gives stealth, youmay “plant” a screwdriver in the garden without drawing attention to it. Adding bandextensions to increase performance and use as many ground radials as possible.AntennaScrewdriverOn Air Stealth TunerBBFebruary 19, DBBBBBBBDDDTVARC Antenna Guide for The Villages21
More Screw Driver“Shorten” or “Loaded” MonopolesAntenna mounted at inside corner of screen cage to obscure view thenpainted to match cage frame and roofScrewdriver mounted to corner of cageRadials & hardware match roof colorFebruary 19, 2015TVARC Antenna Guide for The Villages22
Fishing Pole“Shorten” or “Loaded” MonopolesThis is just a simple 20 foot crappie polepropped up against fence or any objectdisguise your antenna.PRO More stealth on patioCON Where to put RadialsSurround the bottom of the pole withan old fishing tackle box to provideyour antenna with visual effectAntennaFishing PoleOn Air Stealth TunerBCFebruary 19, MDCCBBBBAACDDTVARC Antenna Guide for The Villages23
more Fishing Pole“Shorten” or “Loaded” MonopolesMany options for stealth Tilt up Tripod PVC Poles Clamp to railingAntennaFishing PoleOn Air Stealth TunerBCFebruary 19, MDCCBBBBAACDDTVARC Antenna Guide for The Villages24
Trapped Vertical AntennasPRO Wide VSWR BW“Shorten” or “Loaded” MonopolesThe HF6V antennas are easy to erect and tuneantennas that will last you for many years.Butternut HF6V antennas work six bands--80,40, 30, 20, 15, and 10 meters--with anextremely efficient vertical radiator that's only26 ft. tall!The traps are low pass filters thatmake the antenna electricallyshorter as frequency increases tomaintain a lower VSWR butreduces On Air performanceCON On AirAntennaTrapped VerticalTapped verticals are often hiddeninside PVC Flagpole for stealthOn Air Stealth TunerCCFebruary 19, DDCCCCCCCCDDTVARC Antenna Guide for The Villages25
more Trapped Vertical Antennas“Shorten” or “Loaded” MonopolesTraps lower efficiency on lower frequenciesSeparate elements are an alternative to trapsElements are separated to stop couplingWorks like a “Fanned Dipole”Fanned DipoleAntennaTrapped VerticalOn Air Stealth TunerCCFebruary 19, DDCCCCCCCCDDTVARC Antenna Guide for The Villages26
Palm Tree CagedMonopole with Radials Palms can be 30 to 40 Feet and do better on80M & 160M than Flagpoles limited to 21 Feet Disguising your remote tuner in plain sight aselectrical equipment for your lights Radiating element can be Xmas lights or GrayBrown wire to form a “Caged” radiating element Still need many radials for an efficient RFPRO Stealth On AirAntennaPalm Tree CageCON Cost InstallOn Air Stealth TunerBAFebruary 19, MFFCBBBBAAAABTVARC Antenna Guide for The Villages27
what isCagedMonopole with RadialsA “cage” antenna is electrically a cylindrical conductor that appears electricallyas a much larger and longer single conductor providing greater bandwidth /SWR. It can be shorter physically and was often used on ships with limiteddistance between masts for HF into the 1960s. The use of higher frequenciesand availability better tuners resulted in the cage fading away.AntennaPalm Tree CageOn Air Stealth TunerBAFebruary 19, MFFCBBBBAAAABTVARC Antenna Guide for The Villages28
Rain DownspoutPRO StealthCON On Air Install“Shorten” or “Loaded” MonopolesRain downspout antenna is a difficult install job The gutter and downspout are isolated from groundElectrical continuity between sections of yourdownspout is a maintenance problemCoupling to the house, aluminum window andscreen cages detunesSuccess has been at 2 or 3 story homesPoor ConductivityAntennaRain DownspootOn Air Stealth TunerDAFebruary 19, 2015RemoteRemote Tuner3 Story CDDDDDFFTVARC Antenna Guide for The Villages29
Before the next antennaNewer homes are being made with aluminum roofsheathing. Basically plywood or OSB sheathing with athin aluminum facing on one side as a radiant heatbarrier. The aluminum blocks RF and precludes manyof the attic antenna installations for homes south of 466.February 19, 2015TVARC Antenna Guide for The Villages30
DipolePRO CostCON NVIS On AirCenter-Fed-Dipoles - ½ Wavelength ½ WL dipole oriented horizontal and center fedResonate 40M and 15M is 65 Feet LongMay take many shapes to fit in attic space2.16 dBi perpendicular in free spaceNVIS at ten feet above ground drop to -9 dBiAttic is most common installationAntennaDipoleOn Air Stealth TunerCCFebruary 19, BBCCCCCCDDFFTVARC Antenna Guide for The Villages31
More DipoleCenter-Fed-Dipoles - ½ Wavelength Color is key to stealthLocation can be under soffits or over shinglesStraight lines are not requiredMulti-antennas required for matchingPrimary & Odd Multiples are resonantAntennaDipoleOn Air Stealth TunerCCFebruary 19, BBCCCCCCDDFFTVARC Antenna Guide for The Villages32
Inverted VeePRO CostCON StealthCenter-Fed-Dipoles - ½ Wavelength“Birdhouse Antenna” Elements “support” the birdhouse poleBirdhouse covers feed point & coax in PVC pipeTell everyone how much you love bird watching!Less NVIS than attic or roof DipoleMartinBirdhouse40M22 Ft Tall50 Ft WideAntennaInverted VeeOn Air Stealth TunerCDFebruary 19, CBCBBBBCCCDFTVARC Antenna Guide for The Villages33
G5RV JrPRO CostCON On Air InstallCenter-Fed-Dipoles - ½ WavelengthG5RV popular multi-band "compromise" antennaLadder Line must be in free space and verticalDemands better tuner than dipole or OCFInvented in 1946 by Louis Varney, G5RV (SK)40MG5RV JR 40M-10MG5RV 80M-10M15 Ft Tall51 Ft WideAntennaG5RV JrOn Air Stealth TunerCCFebruary 19, BBCCCCCCDDFFTVARC Antenna Guide for The Villages34
G5RV JrCenter-Fed-Dipoles - ½ WavelengthIssue - Ladder Line must be in free spaceLadder Lineshould beinstalled awayfrom objectsAntennaG5RV JrOn Air Stealth TunerCCFebruary 19, 2015ShackDo you have15 Ft awayfrom BCCCCCCDDFFTVARC Antenna Guide for The Villages35
G5RV JrCenter-Fed-Dipoles - ½ WavelengthIssue - Ladder Line must be in free spaceLadder Line should be installed away from objectsAntennaG5RV JrOn Air Stealth TunerCCFebruary 19, 2015ShackG5RV intended for Free CCCCDDFFTVARC Antenna Guide for The Villages36
G5RV JrCenter-Fed-Dipoles - ½ WavelengthIssue - Ladder Line must be in free space Ladder Line should be installed away from objectsAntennaG5RV JrOn Air Stealth TunerCCFebruary 19, 2015ShackG5RV intended for Free CCCCDDFFTVARC Antenna Guide for The Villages37
PRO Backpack PortableCON On Air CostBuddipoleCenter-Fed-Dipoles -“Loaded” DipoleTwo short elements on a tripodTuned by base loaded elements40M-6M & 2M by changing coils16 Ft Wide X 10 Ft Tall 500 as shownIdealWorstBetterAntennaBuddipoleOn Air Stealth TunerDCFebruary 19, 160MBCCCCCDDFFFFTVARC Antenna Guide for The Villages38
CON On AirSlinky DipolePRO CostCenter-Fed-Dipoles -“Loaded” DipoleTwo shorter loaded elementsTuned by stretching (var. Inductor)40M-10M with tunerSize to fit space availableActs like a base loadIdealWorstBetterAntennaBuddipoleOn Air Stealth TunerDCFebruary 19, 160MBCCCCCDDFFFFTVARC Antenna Guide for The Villages39
Helical-Coil DipolePRO CostCON On AirCenter-Fed-Dipoles - “Loaded” DipoleThe Dowsers Corner Our COAX Stealth HelicalDipolex 35AntennaOn Air Stealth TunerHelical-Coil DipoleDCFebruary 19, BCCCCCDDFFFFTVARC Antenna Guide for The Villages40
CON On AirWound Vertical DipolePRO InstallCenter-Fed-Dipoles -“Loaded” DipoleVertical has less NVIS than HorizontalTuned by adjusting elements40M-10M, 80M by adding coil20 Ft Tall wire around a fishing pole 50 as shownIdealWorstBetterAntennaBuddipoleOn Air Stealth TunerDCFebruary 19, 160MBCCCCCDDFFFFTVARC Antenna Guide for The Villages41
CON On Air CostWound Vertical DipolePRO Backpack PortableCenter-Fed-Dipoles -“Loaded” Dipole“TransWorld Adventurer”Tuned by matching network20M-10M by switching network5 Ft Wide X 8 Ft Tall 800 as shownIdealWorstBetterAntennaBuddipoleOn Air Stealth TunerDCFebruary 19, 160MBCCCCCDDFFFFTVARC Antenna Guide for The Villages42
PRO 160MCON On AirFence DipoleDirect Driven Ring RadiatorFeatured in QST as Stealth 80M – 160MNVIS designNot for 40M & up5 Ft High X 62 Ft LongAntennaFence DipoleOn Air Stealth TunerDAFebruary 19, MCCFFDDDDCCCBTVARC Antenna Guide for The Villages43
CON On AirTAK-tennaPRO InstallCenter-Fed-Dipoles -“Loaded” DipoleTwo short elements with end loads40M-6M3 Ft Wide X 3 Ft Tall 180 in Kit FormIdealWorstBetterAntennaBuddipoleOn Air Stealth TunerDCFebruary 19, 160MBCCCCCDDFFFFTVARC Antenna Guide for The Villages44
Off-Center-Fed DipolePRO CostCON On Air“Off-Center-Fed” DipoleMulti-band "compromise" antenna like G5RV No Ladder Line, so easier to install than G5RVEasier to match than dipole or OCF for 30M, 17M & 12MResonate 40M, 20M, 15M & 10M 65 Feet LongMay take many shapes to fit in attic space40M67 Ft Long (1/2 WL)Line or Zig ZagAntennaOff Center FedOn top of shinglesOn Air Stealth TunerCCFebruary 19, 2015ShackC ShapeIn CCCCDDFFTVARC Antenna Guide for The Villages45
PRO CostOCF DP also called aWindom DipoleCON On Air“Off-Center-Fed” DipoleMulti-band "compromise" antenna like G5RVNo Ladder Line, so easier to install than G5RVEasier to match than dipole or OCF40M67 Ft Long (1/2 WL)Line or Zig ZagAntennaOff Center FedOn top of shinglesOn Air Stealth TunerCCFebruary 19, 2015ShackC ShapeIn CCCCDDFFTVARC Antenna Guide for The Villages46
Inverted-LPRO On AirCON None? You decide!“Vertical” with RadialsThin wire which is hard to see from a distanceTypically 20 Ft vertical then horizontal to treeLength determines lowest frequency¼ WL60 FT 80M125 Ft 160MAntennaInverted LOn Air Stealth TunerABFebruary 19, MCCBBAAAAAAAATVARC Antenna Guide for The Villages47
PRO OnEnd Fed “Dipole”CON Length“Off-Center-Fed” DipoleThin wire which is hard to see from a distanceTypically 20 Ft vertical then horizontal to treeLength determines lowest frequencyElement 92% of ½ WLCounterpoise 8% of ½ WL40M120 FT 80M230 Ft 160MLadder Linecan be usedfor matching&counterpoiseAntennaEnd FedOn Air Stealth TunerBBFebruary 19, MBCBBBBBBCCFFTVARC Antenna Guide for The Villages48
PRO OnEnd Fed “Dipole”DX Engineering Auto-Tuned Multi-Band HF Stealth AntennaCON Cost“Thin wire which is hard to see from a distance No antennas allowed? DX Engineering Auto-Tuned Multi-Band HF StealthAntenna Systems help you keep a low profile and still get on the air! Our ATSAconcept allows Amateur radio operators living under the shadow of HOAcontrolled areas to get on the air easily. “ 600AntennaEnd FedOn Air Stealth TunerBBFebruary 19, MBCBBBBBBCCFFTVARC Antenna Guide for The Villages49
Random WirePRO CostCON 40-160M“Off-Center-Fed” DipoleMany recommend lengths published40M-10M Example 84' long end fed and a 17' long counterpoiseQST, March 1936, P 32One solution hide remote tuner & counterpoise under soffitRandom Wire can be run over roof or to treeWire to treeWire over roofAntennaRandom WireOn Air Stealth TunerCBFebruary 19, BBCCCCCCDDFFTVARC Antenna Guide for The Villages50
Flagpole-LPRO On AirCON Cost“Off-Center-Fed” DipoleThin wire added to FlagpoleSmall wire is hard to see from streetFlagpole for vertical then horizontal to treeLength determines lowest frequency¼ WL60 FT 80M125 Ft 160MAntennaFlagpole LOn Air Stealth TunerABFebruary 19, MCFBBAAAAAAAATVARC Antenna Guide for The Villages51
Rain Gutter DipolePRO StealthCON On Air“Off-Center-Fed” DipoleVery NVIS Antenna Rain Gutter antenna is a difficult install jobKeep gutters are isolated from ground install wire on insulatorsElectrical continuity between sections is a maintenance problemCoupling to the house, aluminum window and screen cages detunesLow Res Z––Antenna80M 7 Ohms R 0j160M 8 Ohms R 0jOn Air Stealth TunerRain Gutter DipoleDAFebruary 19, CCFFDDCCCDDDTVARC Antenna Guide for The Villages52
CON On AirOff-Center-Fed Spiral DipolePRO Install“Off-Center-Fed” Dipole -“Loaded” DipoleTwo short elements with end loads40M-2M3 Ft Wide X 3 Ft Tall 10 in Kit FormIdealWorstBetterAntennaBuddipoleOn Air Stealth TunerDCFebruary 19, 160MBCCCCCDDFFFFTVARC Antenna Guide for The Villages53
WL Horizontal LoopPRO None?CON InstallFull Wavelength LoopVery NVIS Antenna AntennaWL Horz LoopDepends on available treesRequire 60 Feet above ground to work properlyLow Res Z at 10 – 20 feet above groundOn Air Stealth TunerDCFebruary 19, MDDFFDDCCCDDDTVARC Antenna Guide for The Villages54
Rain Gutter LoopPRO StealthCON On AirFull Wavelength LoopVery NVIS Antenna Rain Gutter antenna is a difficult install jobKeep gutters are isolated from ground install wire on insulatorsElectrical continuity between sections is a maintenance problemCoupling to the house, aluminum window and screen cages detunesLow Res Z––Antenna80M 7 Ohms R 0j160M 8 Ohms R 0jOn Air Stealth TunerRain Gutter LoopDAFebruary 19, DCFFFDCCDDDFTVARC Antenna Guide for The Villages55
PRO On AirCON 80-160MWL Vertical LoopFull Wavelength LoopGood on the Air Performance Sitting on GroundAlmost Omni-DirectionalWide VSWR range (no tuner)Cheap (wire fishing pole BALUN)Low visibilityAntennaWL Vert LoopOn Air Stealth TunerBBFebruary 19, BBBABABABACFTVARC Antenna Guide for The Villages56
WL Vertical LoopFull Wavelength LoopVertical Loop 150 feet 80M – 6MAntennaWL Vert LoopOn Air Stealth TunerBBFebruary 19, BBBABABABACFTVARC Antenna Guide for The Villages57
Stealth for SaleStealth in a box? SG-237 Smartuner 80 foot wire. Rope Cable tiesFull Loop Go Kit 400February 19, 2015TVARC Antenna Guide for The Villages58
Magnetic LoopShort LoopAntennaMagnetic LoopOn Air Stealth TunerCAFebruary 19, CCCCCDDDTVARC Antenna Guide for The Villages59
PRO StealthMagnetic LoopCON CostShort LoopShort magnetic loops are less than 10% of a wavelengthMagnetic loop does not look like an antennaShape can be a circle, rectangle, square, etc. more area helpsRF Efficiency 10% & advanced DIY skill QEX March 2013 P 3-6Thousands of RF Amps require pipe conductorsThousands of RF Volts require vacuum capacitors for tuning10 KHz VSWR BandwidthAntennaMagnetic LoopOn Air Stealth TunerCAFebruary 19, CCCCCDDDTVARC Antenna Guide for The Villages60
Magnetic LoopShort LoopMFJ-1786 Loop 30M-10M sells for 500AntennaMagnetic LoopOn Air Stealth TunerCAFebruary 19, CCCCCDDDTVARC Antenna Guide for The Villages61
Magnetic LoopShort LoopMost Magnetic Loops are DIYThousands of RF Amps require pipe conductorsAntennaMagnetic LoopOn Air Stealth TunerCAFebruary 19, CCCCCDDDTVARC Antenna Guide for The Villages62
Magnetic LoopShort LoopMost Magnetic Loops are DIYThousands of RF Volts require vacuum capacitors for tuningAntennaMagnetic LoopOn Air Stealth TunerCAFebruary 19, CCCCCDDDTVARC Antenna Guide for The Villages63
Magnetic LoopShort LoopQRP Magnetic Loops are often made from coaxial cable or wireAntennaMagnetic LoopOn Air Stealth TunerCAFebruary 19, CCCCCDDDTVARC Antenna Guide for The Villages64
PRO StealthMagnetic LoopCON CostShort LoopShort Magnetic Loops can be used as horizontal loops for short range200 to 400 Miles NVIS theater communicationsMag LoopAntennaMagnetic LoopOn Air Stealth TunerCAFebruary 19, CCCCCDDDTVARC Antenna Guide for The Villages65
Magnetic LoopShort LoopVertical or horizontal loops mobile communicationsStealth Telecom 9400 Mobile HF NVIS Magnetic Loop Antenna 5,000Mag LoopAutotunerAntennaMagnetic LoopOn Air Stealth TunerCAFebruary 19, CCCCCDDDTVARC Antenna Guide for The Villages66
Magnetic LoopShort LoopVertical DIY loops mobilecommunicationsAntennaMagnetic LoopOn Air Stealth TunerCAFebruary 19, CCCCCDDDTVARC Antenna Guide for The Villages67
PRO Cost2M / 70cmCON None?The Villages have good 2M & 70cm repeater coverageMost can reach one or more repeaters from an HTAn attic antenna will reach the five Sumter repeatersNewer homes with aluminum roof sheathing require stealth antennasFebruary 19, 2015TVARC Antenna Guide for The Villages68
2M / 70cmPRO Costxx x Y zCON None? 70qq A B cArrow J-PoleFebruary 19, 2015TVARC Antenna Guide for The Villages69
2M / 70cmMost 2M & 70cm antennas will fit inside PVC pipe & mount as a vent pipeVentenna VT-27 2M/440 Dual Band 120Hide in plain sightFebruary 19, 2015TVARC Antenna Guide for The Villages70
2M / 70cmMost 2M & 70cm antennas will fit inside PVC pipe & accent with aplastic weather vaneFebruary 19, 2015TVARC Antenna Guide for The Villages71
2M / 70cmMore 2M & 70cm antennas stealth options; hiding as a potted plant orstaked tree, climbing vine, etc.February 19, 2015TVARC Antenna Guide for The Villages72
Antennas for The VillagesModulation matters more than your antenna or power output AM vs. SSB vs. CW vs. PSK vs. JT655 W using CW equals 250 W using SSB5 W using PSK-31 equals 2,500 W using SSB QST Dec 2013, P30-32 Horizontal elements near ground are NVIS QST Nov 2009, P 64-65 - May 2010, P 57 - Apr 2010 P 47-48 Loads at base hurt, top loads help, top caps helpTraps hurt lower frequencies QEX Jan 2014, P34-42 – Mar 2014, P18-31 Poor soil conductivity hurts radials as counterpoise QST Mar 2010, P30-33 – Mar 2014, P35-37 Anything Tall Helps (except Vertical WL Loops any height works)Longer is better (monopole objective is ¼ WL or odd multiples, ½ WL for dipoles)Inverted-L address lower frequencies (160M-40M)Vertical WL Loops address most HF bands (80M-10M)Height (of Dipoles, G5RV, End Fed) matters, except Vert LoopsShort Antennas hurt RF Efficiency1 Counterpoise above ground 32 RadialsSome timeless approaches for better RF performanceFebruary 19, 2015TVARC Antenna Guide for The Villages73
February 19, 2015 TVARC Antenna Guide for The Villages 7 Read every book on antennas or use Villages Antenna Guide to narrow the list "Villages Antenna Guide" is your shopping list Antenna On Air Stealth Tuner Install Cost 6M 10M 12M 15M 17M 20M 30M 40M 80M 160M Flagpole B A Remote D F C B B B B A A C D D Screwdriver B B None C D B B B B B .
May 02, 2018 · D. Program Evaluation ͟The organization has provided a description of the framework for how each program will be evaluated. The framework should include all the elements below: ͟The evaluation methods are cost-effective for the organization ͟Quantitative and qualitative data is being collected (at Basics tier, data collection must have begun)
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Mission Statement: The Brainerd Area Amateur Radio Club is comprised of about 85 licensed Amateur Radio Operators who meet monthly to exchange ideas, improve radio skills, organize activities that are of service to the area, promote development of Amateur Radio, and
November 20, 2014 ROS Setup Plans 11 CW Station The goal is to show Amateur Radio is possible in The Villages Yaesu FT-450 Club HF Rig LDG Z Pro II Club Tuner 100 Amp/Hr (Car Battery) to power station Wayne N4FP Station Lead
Anatomy of a journal 1. Introduction This short activity will walk you through the different elements which form a Journal. Learning outcomes By the end of the activity you will be able to: Understand what an academic journal is Identify a journal article inside a journal Understand what a peer reviewed journal is 2. What is a journal? Firstly, let's look at a description of a .
