Hy-Gain TH3-MK3 Thunderbird Instruction Manual Download | Manualshive

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Summary of Contents for TH3-MK3 Thunderbird

Page 1: ...pedance Gain f Front to backratio ft 25d8 Maximum power input i 1 kwAM VSWR atresonance t Lightning protection t DCground f f n l Mechanical B il l g 11 11 3 Longest element 9 2i ft 823 7 cm Maxrmum wino survivat r 100mph 160 93 kmph Netweignt Accepts mast i Fr 11A lo 2V2 O D 32mm 64 mm Wind surface area 5 10sq ft 0 474m2 Wind loadatB0mph t i I i ft r Theantenna siteshould OetreeiOt largebuildings...

Page 2: ...insideof all tubingfor parts clamps insulators smalter tubing etc To conserve space thesesmaller articlesare sometimes put inside largerpieces Select theboom to bracket clamp parts items 2 and3 Loosely assemble themonthe drilled endsoi thetwoboomsections item 8 using the1A 20 x 3 a bolts andthe7a nuts andinternaf lockwashers Secure theboomto thebracket using thetwosh a 18x23 0 screws nuts andlockw...

Page 3: ...centerstoallowsecuring to themastwiththe5 rc 18 x31 2 bolt lt is recommended thatthemastbe removed and an11 32 holebedrilled atthedesiredmastclampposition thenreinstallthe mast lfthis is not possible the clampwillhold its positionon the mastin all butthe mostsevere weatherconditions t o c o2t tr 18 r 5 8oLT LocKwasHEnail tur tr9tcot 4 Dtocaa casT Alutttlx ARACKETS a 6 6 18r2t rcLr LocKwAsrER o d N...

Page 4: ...ent DE Loosely assemble thesmaller element to boom brackets andslipthemoverthesame endoftheboom ThiswillbefortheReflector element SeeFigure 7 Loosely assemble theremaining pairofelement to boom brackets andslip them overthe opposite endoftheboom ThiswillbefortheDirector Element e AO O3E8 C 0t5 DO NOT TIGHTENTHESE EOLTSUIITIL LATER 8 REOUIREO PER ERACKETI IVEII ELEIIENT ERACKET REFLECTOR ELETEI T E...

Page 5: ...ical andmechanical connection During thereadjustment ordisassembly thetubescanbeseparated byremoval ofthe clamp Thetubescanlhenbeseparated andthecompression clampreinstalled CAUTION Do notovertighten the compression ctamps NOTE To savetime loosely assemble allofthecompression clamps and their appropriate hardware before beginning further installation oftheantenna rA oooo A oot L tt l rrj to lu HHB...

Page 6: ...herside Check toseethatalltheelement to boom brackets willliehorizontalwhen theantenna is mounted onyourmast Dothisbyobserving theposition oftheelement with respect tothe boom to mast bracket lv4ake anyadjustmenis necessary keeping the centerof the bracket 2 a lromthetipoftheboomthentighten theanchor screws securely Select fheR1section oftubing 1 x 48 12L9 cmlong item 4 Slip a1 compression clamp o...

Page 7: ...ter trap SelecttheR4 section 7 rc x 28 item11 andslipit intothe15 metertrap Measuredimension Efor your mode of transmission as shown in Figure10 then tightencompression clamp slightly Carefully recheckall measurements and makecertainthe shortedend of alltrapsare pointedtowardsthe boom Now tightenall compression clampsas explained earlier Remember notto overtighten them Makesureall drainholesarefac...

Page 8: ...meplaneastheReflectorandmake certainit isstill723 n 184 8cm fromthecenterofonebracket tothecenteroftheother Nowtightenthe anchorscrewsecurely Select theD1section oftubing 1 x48 121 9 cm long item4 Slip a 1 n compression clampovertheD1section Select theD2section 1 x38 96 5 cmlong item9 Slipthe unswagedend of D2 intothe D1 sectionand measuredimension L for yourmodeof transmission as shownin Figure12...

Page 9: ...T 7 capr uo le capuud BOOM TO MAST BRACKET ER DRIVEil ELEMENT TRAP IO METER TRAP RF CHOKE LEAOS SEE FIGUREt4 DETAILSA 8 B DRIVEI LEUENT COMPRESSION CLAt tPS EETA MATCH SEE FIGUREI4I BOO SECTtON 2 r 84 213 4cn longl lzU llg4 Bc6l 15 f ETERPARASITIC TRAP IO METEi TRAP REFLECTOR COMPRESSION CLAMPS Flgure13 OverallVlew Carefully recheck allmeasurements asshown inFigure 13 Thedriven element should meas...

Page 10: ...t n 20x 11 2 screws asshown inFigure 14 Do nottighten theeonnection atthistime Thecoaxial feedline willconnect tothispointina laterstep r SEAL WITH NEOPRENE PLY O 8OND OR OTXER SEALANT ao o388 A OlO AO O188 A O09 to t7j 3 ecm CLAMP RF CHOKE 5 15 2cmt INNER DI IMETER r2 TURNS OF RGg U OR HY GAIN STRIP COAXFORC IOKEAS SHOWN DETAIL B AO OS8 A ql Placea 7 0 caplugon each element DETAILD tip and a 2 ca...

Page 11: ...0095 screw 10 24 x 1 hexhead 25 lo oltt c ooa SEE GTAIL O sE o t tl c Pari No Dercrlpllon Ary 506485 screw 10 24 x round head 2 506741 screw 5 16 18 x23 c hexhead 2 notapplicable 5 1 6 4 7 0 s c r e w f 1 0 2 4 x y 2 W p e A 2 notapplicable 555362 nut 10 24 square 30 5 5 6 9 4 5 n u t 5 1 6 1 8 h e x I 556960 nut y 20 hex 34 556970 nut 10 24 hex 9 558685 nut y1 20 square 6 nolapplicable 567075 loc...

Page 12: ...iameters of tubes etc TheEnglish inch andfoot canbeconverted to centimeters in lhisway 1 inch 1 2 54 cm 1 foot 1 30 48 cm Example 42 x2 54 106 7 cm c q q s l i l a zI PRNTEDN U S A Copyrighto 1979 by Fy Gain EleClrooics Oivisiond T LEX COMMUNICATIO IS lNC All rigils resewed 6 791r2140 t ...

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