SmallIR Vertical - Instruction Manual

Transcription

1 Yagi Dipl Vtical (Pattd) SmallIR Vtical - Istucti Maual BigIR MK III SmallIR StppIR Atas th Av NE, Suit 2-5, Bllvu, WA Tl: Fax: Tch Suppt: Rvisi 02/22/08

2 StppIR Atas - SmallIR 2 Tabl f Ctts Tpic Pag Tabl f Ctts 2 StppIR - Why Cmpmis? 3 StppIR Dsig 4 SmallIR vtical cmpts 5 Istallig th SmallIR 5 Ppa th Tlscpig Fibglass Elmt Suppt Tubs 7 Istallati f th Rai Cap 9 Assmbl th Ata 10 Mutig th Ata (gud) 11 Optial (1-1) Extal Balu 12 Radial systms f lvatd ad gud mutd vtical atas 13 Gud Mutig 14 Elvatd Mutig 16 Usig a vtical i salt wat 17 Ctl Cabl Schmatic 18 StppIR Waaty 19

3 StppIR Atas - SmallIR 3 StppIR - Why Cmpmis? Th StppIR ata was igially ccivd t slv th pblm f cvig th six ham bads (20m, 17m, 15m, 12m, 10m ad 6m) tw withut th pfmac sacifics causd by itacti btw all f th quid atas. Yagis a availabl that cv 20 mts thugh 10 mts by usig itlacd lmts taps, but d s at th xps f sigificat pfmac ducti i gai ad ft t back atis. With th additi f th WARC bads 17m ad 12m, th us f itlacd lmts ad taps has claly b a xcis i dimiishig tus. Obviusly, a ata that is pcisly adjustabl i lgth whil i th ai wuld slv th fqucy pblm, ad i additi wuld hav vastly impvd pfmac v xistig fixd lgth yagis. Th ability t tu th ata t a spcific fqucy, withut gad f badwidth, sults i xcllt gai ad ft t back at vy fqucy. Th StppIR dsig was mad pssibl by th cvgc f dtmiati ad high tch matials. Th availability f w lightwight glass fib cmpsits, Tfl bldd thmplastics, high cductivity cpp-byllium ad xtmly liabl stpp mts has allwd th StppIR t b a cmmcially fasibl pduct. Th cut ad futu StppIR pducts shuld pduc th mst ptt sigl tw ata systms v s i Amatu Radi! W thak yu f usig u StppIR ata f yu ham adi davs. Wam Rgads, Mik Mtl Michal (Mik) Mtl - K7IR Psidt

4 StppIR Atas - SmallIR 4 StppIR Dsig Cutly, mst multi-bad atas us taps, lg clls itlacd lmts as a mas t cv sval fqucy bads. All f ths mthds hav thig i cmm thy sigificatly cmpmis pfmac. Th StppIR ata systm is u asw t th pblm. Rsat atas must b mad a spcific lgth t pat ptimally a giv fqucy. S, istad f tyig t tick th ata it thikig it is a difft lgth, simply addig m lmts that may dstuctivly itact, why t just chag th ata lgth? Optimal pfmac is th pssibl all fqucis with a lightwight, cmpact ata. Als, sic th StppIR ca ctl th lmt lgths, a lg bm is t dd t achiv a ptimum gai ad ft t back atis mts. Each ata lmt csists f tw spls f flat cpp-byllium tap cduct (.54 Wid x.008 Thick) mutd i th lmt husig uit. Th cpp-byllium tap is pfatd t allw a stpp mt t div thm simultausly with spckts. Stpp mts a wll kw f thi ability t idx vy accuatly, thus givig vy pcis ctl f ach lmt lgth. I additi, th mts a bushlss ad pvid xtmly lg svic lif. Cpp-Byllium Tap Th cpp-byllium tap is div ut it a hllw fibglass lmts suppt tub (s blw), fmig a lmt f ay dsid lgth up t th limit f ach spcific ata mdl (a vtical uss ly sid). Th fibglass lmts suppt tubs (pls) a tlscpig, lightwight ad vy duabl. Wh fully cllapsd, ach masus appximatly 48 i lgth. Dpdig th mdl, thi may b additial xtsis addd t icas th vall lmt lgth. Th ability t cmpltly tact th cpp-byllium ata lmts, cupld with th cllapsibl fibglass pls maks th ti systm asy t disassmbl ad taspt. Th ata is cctd t a micpcss-basd ctll (via 22 gaug cduct cabl) that ffs umus fuctis icludig ddicatd butts f ach ham bad, ctiuus fqucy slcti fm 40m t 6m (dpdig th mdl). Th a als 17 ham ad 6 -ham bad mmis ad yu ca slct a 180 dicti vsal* bi-dictial* md ad it will adjust i just abut 3 scds (* yagi ly). B m E l m t S u p p t T u b C p p B y lliu m T a p S t p p D iv M t E l m t H u s i g U it

5 StppIR Atas - SmallIR 5 Istallig th SmallIR Vtical Figu 1 B 18 ft Elmt Suppt Tub (pl) B D D Rubb Cuplig (bt) (2) A Elmt Husig Uit A Elmt Husig Tub C Alumium Mutig Mast A: Elmt Husig Uit (EHU) B: 18 Tlscpig Fibglass Pl (EST) C: 24 x 1.5 OD Alumium Mutig Mast D: Rubb Cuplig (bt) (2)

6 StppIR Atas - SmallIR 6 Tak it Vacati

7 StppIR Atas - SmallIR 7 Ppa th Tlscpig Fibglass Elmt Suppt Tubs Lcat: O fibglass tlscpig pls (Cmpt B, Figu 1) O ll f black lctical tap O 10 ll f black silic slf-cuig tap Yu tap masu Nt: Th stailss stl ifcig igs th fist tw pl sctis pvid xta stgth i pttial high wid cditis. Waig: Chck all fu sctis f th pl f packig ppc ay th fig bjct that culd itf with th cpp tap mvmt. D t mv th black fam plug fm th tip f th futh (small) scti. This is a vtilati filt. Tlscp th pl t its full lgth by pullig ach scti ut fimly i a twistig mti util it is xtdd as fa as pssibl. Each sgmt is tapd ad shuld lck sculy i plac wh fully xtdd. Th pl must b at last 17 ft 8 ichs i lgth as masud fm th butt (lag) d f th pl t th tip. If th pl cms up a littl sht (1/2 t 1 ) ty cllapsig th pl ad statig v, this tim aggssivly jk ach scti ut istad f twistig. Th pl cat b damagd ad yu may gai a miimum f 1/2 m. If yu hav tubl cllapsig th pl ty cafully stikig d a pic f wd th simila sufac placd th gud. At th facty wh w quality chck th pls t vify that thy mt miimum lgth w hld th butt (lag) d ad whip it lik w w castig a fishig pl with csidabl fc. This pcdu ca pduc a sigificat diffc i th xtdd lgth f sm pls as a last st if thig ls wks. DO BE CAREFUL!!! Nxt wap ach jit th fibglass pls with th all wath lctical tap (Figu 3). Each jit shuld hav at last th full width f th tap bth sids f th jit. Us cmm ss th amut f tap yu will t hav ugh f th silic tap usd lat t cv th lctical tap. Excpti: O jits with ifcig igs, th tap must ctiu futh s it xtds at last 3/4 byd th mtal ig ad t th fibglass pl. Figu 3

8 StppIR Atas - SmallIR 8 Figu 5 Th w silic tap is w BLACK Figu 7 Apply cmplt wap f lctical tap aud th fibglass tub as yu bgi, ad th wk yu way acss th jit ad back usig half vlap waps, s that th ti aa is samlssly cvd as shw i Figu 3. Cafully sttch ad smth th tap with yu fig as yu apply, ad spcially wh yu chag dictis - this will hlp avid ippls ad hav th tap li as smthly as pssibl. At th d f th u, cut th tap with a kif scisss ad pss th d t th pl. Th u yu had v th tap a cupl f tims t fim up th bdig. Rcmmdd Lgths f Silic Tap Wappig A - B - 20 i / 51 cm 18 i / 46 cm A B C D C - 16 i / 41 cm D - 11 i / 28 cm Nxt, yu will wathpf ad UV ptct ach jit with th black slf-cuig silic tap (Figu 5). It is imptat that yu p-cut th silic tap t th cmmdd lgths. If yu d s, yu will hav m tha ugh f ach jit. Rf t Figu 7 f pp lgths f ach jit.

9 StppIR Atas - SmallIR 9 IMPORTANT: P th maufactus spcificatis th silic tap has a shlf lif f 12 mths bf it is usd ad shuld b std i a cl, dy vimt. Silic tap will ly bd t itslf. B su t mv th ti cct ptct sidu fm yu hads bf hadlig silic tap, as that sidu will caus th silic wap t t adh t itslf i placs. Tak ca t kp th silic wap f f dit dbis. Als, this tap MUST b cut. D t ta it. Wash yu hads bf cmpltig th fllwig stps. Yu will d t sttch th silic tap appximatly 100 % its igial lgth as yu wap th jits. This will activat its ability t bd t itslf fmig a scu wat pf sal. Psiti th black silic wap abut 1/2 t th ight f th black lctical tap ad wap lay cmpltly aud th pl s th tap fully vlaps itslf. Th slwly wap th silic tap t th lft usig half vlap waps, xtdig abut 1/2 byd th black tap. Wh yu ach th d, wap lay cmpltly aud th pl s th tap fully vlaps itslf just as yu did at th bgiig f th wap. If yu a sttchig th tap cctly yu will gt abut tw lays f tap at ach jit. As bf, cafully sttch ad lay th tap dw as smth as pssibl. Istallati f th Rai Cap O th tip f th pl yu will istall a black cap (Figu 9) with a pic f tubig passig thugh it. Th pups f this vt cap is t kp th ai ut, yt still allw ai flw thugh th fam plug it th tlscpig pl. Figu 9 Rai Cap & Vt Push O Fimly

10 StppIR Atas - SmallIR 10 Assmbl th Ata: Yu ca lay th lmt husig uit th gud flat it s sid istall it its mutig mast bf istallig th 18 ft. tlscpig pl. F gud mutig yu will wat t su that th mutig pl (icludd) ds t shift sttl v tim, usig cct t scu it i th gud is a way t limiat th pttial f this pblm. Psiti th mutig pl (machid d up) s that th bttm f th lmt husig is 6 ichs abv th gud (Figu 15). Aft th mutig pst is i plac ad lvl, yu a ady t ct yu StppIR Vtical! A ubb bt must b istalld (small d fist) th 1-1/2 mast (gud lvatd mut) bf mutig th lmt husig uit th mast (Figu 11). Aft th EHU is mutd th mast push th ubb bt up t th EHT fimly util it bttms ut agaist th dg f th EHT ad tight th tw clamps. This bt will pvt th ata fm tuig th mast. Istall a ubb bt t th 18 ft. tlscpig (Figu 11) pl bf yu ist it it th lmt husig tub. Th small d f th bt gs th pl fist abut 8 up fm th butt. Nt: Th tlscpig pl ca b mutd t th lmt husig uit fist if yu chs ad th fully assmbld ata ca th b mutd th mast (Figu 17). Slid th butt (lag) d f th tlscpig fibglass pl it th lmt husig tub (EHT) util it is fimly bttmd. Push th ubb bt dw fimly t th lmt husig tub util it bttms ut ad tight th tw clamps. This bt will pvt wat fm gttig it th lmt husig uit (EHU). Figu 11 Rubb Cuplig (bt) 18 ft. tlscpig pl Elmt Husig Tub Elmt Husig Uit Machid Ed Rubb Cuplig (bt) Alumium Mutig Mast

11 StppIR Atas - SmallIR 11 Mutig th Ata (gud) Nw yu a ady t cct th adials! W cmmd usig a lug cct at th d f yu adials, ad th tightig th lug t th cct pst shw i Figu 19. If yu puchas ptial adial kits (Figu 13), yu will tic th a 4 wis p st, all sldd ad cimpd t a lug cct. Gud Radials ( ga isulatd wis) Figu 13 Gud Lug Figu. 15 Mutig Pl Figu 17 Figu 19

12 StppIR Atas - SmallIR 12 Optial (1-1) Extal Balu Nt: If yu hav puchasd th ptial balu w is a gd tim t istall it. A balu is a lctical cicuit usd t hlp slv th iht pblm f fdig a ata with a lctically ubalacd (cax) fd li. It is itdd t pst a ifiit impdac t ay RF cut that might thwis flw th ut cduct (shild) f th cax pducig adiati fm th li. This cut, if high ugh, ca caus hat buildup ad pttial damag t th adi as wll as a disttd adiati patt. Cax Fit Tidal C Radi Ata Figu 21 Why is it Optial?: I th mal cfiguati, gud mutd with 12 m adials, th gud will bld/ dai th uwatd RF sigal fm th cax shild. Wh Shuld Yu Us A Balu?: Wh lvatig th bas f a vtical ata abv th gud Wh ly a fw adials a usd Wh th cax u is sht tha th adials Wh th gud cditi is p Uusual SWR adigs bad Balu Istallati Balu Mutd SmallIR T istall th balu (Figu 23) w suggst that yu mut it as shw i Figu 25. Th a tw hls i th bas f th balu that will li up with tw scws i th d f th lmt husig uit xt t th SO-239 cct. Rmv ths tw scws ad istall thm thugh th balu th cct th PL- 259 as shw i Figu 25. Yu fd li will th plug it th SO-239 i th ct f th balu. Optial Extal Balu Figu 23 Figu 25

13 StppIR Atas - SmallIR 13 All vtical mpls d sm fm f cutpis i which ata imag cuts flw t wk fficitly. This cutpis usually csists f a systm f adial wis placd ith th gud lvatd abv gud. This is t a i dpth publicati but simply a gal guid istallig ad usig th StppIR vticals. Th is much m ifmati availabl i vaius publicatis if yu d it. Th ARRL Ata Hadbk is a gd suc f additial ifmati. By fllwig a fw simpl guidlis, yu ca btai xcllt pfmac fm vtical atas mutd th gud lvatd abv th gud. Th a a umb f vticals availabl that say adials quid, but thy d hav adials, i th fm f a shtd, tud cutpis systm. As yu might xpct, yu pay a pic f such a small cutpis systm - lss fficicy. As yu will s i th fllwig pags, yu ca gt faily high fficicy with a lativly mdst adial systm that will fa utpfm small cutpis systms. It shuld b td that cutpis systms a ly gd f cuig a fild lsss causd by lsss fm th ath, which is a p cduct f RF, v with gd sil. Th is thig yu ca d abut fa fild lsss that duc th sigal stgth ad lw agl adiati, xcpt gt t sm saltwat. W bifly discuss salt wat lcatis lat i this aticl. Gud Mut Elvat? Gud Mutig: PROS Th adials ca b ay lgth ad thy wk all fqucis Easy t mut Easy accss Lw visual pfil Eight t twlv 0.1 wavlgth adials givs 60% - 65% fficicy ( st f 8-12 adials cut t 0.1 wavlgth at lwst fqucy) CONS Taks 120 adials t qual a lvatd vtical with 2 sat adials (90% fficit) Suudig bjcts ca duc sigal stgth

14 StppIR Atas - SmallIR 14 Elvatd Mutig: PROS + 90% fficit with tw.25 wavlgth adials Ata is gally m i th cla, s suudig bjcts d t caus as much attuati A pakd mtal f will mak a vy gd all-fqucy adial systm CONS Rquis tw.25 wavlgth adials f ach bad f pati (adials itact, s spacig will affct lgth) Mutig is gally m ivlvd Visually high pfil Must b mutd high ugh that ppl w t walk it it Nds t b abut.2 wavlgths high t gt a idal 50 hm match Radials d at last a 20 slp t gt a gd match Ivlvs adjustig ad fi tuig th adial lgths Gud Mutig: If yu chs t gud mut th vtical, pick a spt that will allw yu th bst chac f spadig yu adials vly aud th ata, ad away fm ts ad th bjcts if pssibl. Mut th ata withi ft f gud if pssibl, th cls t gud th btt. Nxt, yu will d t dtmi hw much fft ad wi yu a willig t ivst i this istallati. Th tadffs a as fllws: 1. M adials quals high fficicy (s Gaph 1) 2. M sht adials a gally btt tha a fw lg s 3. If ly a fw adials a gig t b usd, thy d t b vy lg 4. If yu hav vy gd ath (vy fw f us actually d), yu ca btai gd pfmac with vy fw adials % Efficicy Gaph Numb f Radials Numb f adials

15 StppIR Atas - SmallIR 15 Fu adials a what w csid t b th abslut miimum i avag sil. Hw much yu hav t gai with a gd adial systm dpds hw gd yu ath is. Mst f us hav p ath cditis, s th adial systm is imptat. Th ws th ath is, th m ca b gaid with adials. Gaph 2 shws a gaph pducd by Bia Edwad (N2MF) that illustats th lativ sigal gai yu gt with th adials ad vayig lgth v p ath. With btt ath, th gai diffc btw 4 adials ad 120 adials will b abut 2.5 db, as ppsd t 4 db with p ath N=120 N= Radials 96 Radials 2.4 N=48 48 Radials Rlativ Gai N=24 24 Radials 0 N=12 12 Radials Gaph Radil Lgth i Wav lgth N=4 Radial lgth i wavlgth 4 Radials If yu a stictd t.1 wavlgth adials th is t much advatag t usig m tha abut 24 adials. Yu ca s fm Gaph 3 that if m adials a usd th is a hug advatag t makig thm lg. If yu cat lay th adials ut i a symmtical adial patt, d t wy t much - it will distt yu mi-dictial patt slightly but w t duc yu fficicy vy much. Lay th adials ut i th bst ma pssibl giv yu situati. Th a vaius ways t accmplish layig a adial systm, icludig tuig cs, tc. Gd sults a limitd ly t yu cativ gy ad dtmiati! B awa that vy high vltags ca xist at th ds f adials, s b ctai that ca cm it ctact with thm. It is a gd ida t us isulatd wi t ptct fm csi, ad d t buy th adials ay dp tha cssay, t th ichs is sufficit Gaph 3 Sufficit Radial Lgth (wavlgth) Numb f Radials (N) Numb f adials

16 StppIR Atas - SmallIR 16 Elvatd Mutig: Yu ca lvat a vtical just a fw ft fm th gud (4 ft f 20m, 8 ft f 40m) ad gt faily gd pfmac with just 2 adials (lvatd as wll) p bad f pati. Th pblm is yu w t hav a vy gd match t 50 hms, ad th cls pximity f th ath will dgad th sigal - spcially if it is p ath. F idal matchig, w cmmd.2 wavlgth (abut 15 ft 20m ad 30 ft 40m) at th lwst plad fqucy f pati As th hight dcass blw.2 wavlgth, th gud lsss stat t icas, ulss yu hav vy gd gud. Wh a vtical is aisd ff th gud th impdac dps faily apidly fm 36 hms (Ov pfct gud with may adials it will b cls t 36 hms, v al gud it is gally hms) t abut 22 hms wh.3 wavlgth is achd. This wuld mak a ptty p match t 50 hms, s a cupl f ticks a i d. Oc yu lvat a vtical, tw adials a all yu ally d. It is imptat that yu ty t kp a 180 agl btw th tw (ppsd, dictly i li) f th bst patt. Spad th adials ut as fa as pssibl t duc itacti, if thy a lss tha a ft apat it ca b difficult t gt a gd match all bads. T facilitat a match t 50 hms yu ca agl th adials dwwad, this aiss th impdac f th ata as yu icas th agl dwwad. Gaph 4 shws th appximat latiship f adial agl t impdac: Gaph 4 Radial Dp Agl Ata Impdac 0 = 22 Ohms 10 = 28 hms 20 = 35 hms 30 = 47 hms 40 = 53 hms 50 = 55 hms Nt: abv 50 sults i dimiishig tus

17 StppIR Atas - SmallIR 17 Ca t gt ugh dp agl t achiv a gd match? Simply adjust th ata lmt slightly lg tha th facty 1/4 wavlgth (up t 20% lg) sttigs ad th impdac will is. This will caus th adials t b t lg, s thy may d t b pud a bit. B awa that icasig th ata 2% t 3% lg may qui adials t b 5% t 7% sht. Oc yu hav a gd match, plac th facty dfault valus by savig th w ata (t d this yu will us th cat, mdify fatu i th stup md). Wh th vtical is lvatd yu ca gt away with just sat adial, hwv, th patt w t b mi-dictial. Yu will hav -12 db t 15 db ull i dicti Usig a Vtical i Na Salt Wat: If yu a lucky ugh t hav a dck v salt wat, a vtical ca ff upaallld pfmac f lw agl DX. Simply mut th vtical t th dck ad attach tw adials p bad f pati. Thy ca b stapld ight t th dck if it is -mtallic. Mutig th vtical i gud fldd by salt wat a cupl f tims p day ca b qually ffctiv. Pximity t th ca impvs th fa fild lss f a vtical ad allws vy lw agl adiati - gt as cls t th wat as pssibl t hac pfmac. Du t th fact that RF ds t ptat m tha 2 ichs it th wat, dict cuplig (a wi i th wat) is difficult. Objcts lik mtal flats bats, pvidig thy a lag ugh, ca mak gd guds i salt wat. If yu a usig a mtal bat lag mtal bjct, csi is lg a pblm bcaus th lag sufac capacitivly cupls t th wat. Wh usig a small mtal flat (3 ft x 3 ft is just ugh t cct t salt wat), yu wat t b ctai that th mtal ds t cd v tim. F lg tm immsi, Ml is a gd (but faily xpsiv ) chic.

18 StppIR Atas - SmallIR S h i l d S l d D a i t C c t C a s M a l 2 5 P i D s u b. 4 P i W a t h P f P l u g p i p i u t v i w d f m th s ld s id A s s m b l v c a b l b f s ld i g (t a t a ly ) B la c k R d G W h i t Waig: A miswid cabl ca damag th ctll. S ld D a i B l a c k R d G W h i t 4 Cduct T th Ata 4 Cduct Cabl (Small IR)

19 StppIR Atas - SmallIR 19 L i m i t d W a a t y Ths pducts hav a limitd waaty agaist maufactu's dfcts i matials cstucti f tw (2) yas fm dat f sal. D t mdify this pduct chag physical cstucti withut th witt pmissi f StppIR Atas Ic. This limitd waaty is autmatically vid if th fllwig ccus: impp istallati, uauthizd mdificatis, physical abus damag fm sv wath, byd th maufactu's ctl. Maufactu's spsibility is stictly limitd t pai, placmt f dfctiv cmpts. Th shippig istuctis will b issud t th buy f dfctiv cmpts, ad shippig chags will b paid f by th buy t th maufactu. Th maufactu assums futh liability.

20 Yagi Dipl Vtical StppIR Ata Ifmati Wb Sits (as f 4/09/07)