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Click for more detail... home of the no tuner all band hf loop. & the no tuner g5rv....
& the no tunner 80m-75m double bazooka simply build the 80m with the twin lead. snip one leg from each end 5' in from the ends. swr < 1.5
& the sleeved "triple" bazooka & the franklin array. or 4 element colliner well it all started with cb back in the 70s. i know it's a bad word in the ham world "maybe you could bleep out the word CB" me & and grandpa 3 miles away. even my met 1st loves & wifes. i learned then it's all in the antenna. on the mobile nothing beat the whip with a zing ring "bottom mounted cap hat". kind of funny that the cheapest antenna always beat the spendest. then i scored on a big old tube rack mount hf recver. out of a ship. started to tune in the world with a loop on the roof. any ways. my 1st contact on a ham band, from here was to my dad N5SWE formerly ke5pdm in parker az with my homebrew 80m cw on top fed sleved sloper. 600+ miles, now that's qrp & don't get better then that! we've tested alot of antennas. the reason was because we wanted the best we could & there was no book that said this is it! all hams have there favorite antenna. it, don't make the best. most antennas where tested 2, 3 & 4 at a time. testing with a snowbird realy works well in the real world. & i could all ways get hold of mom & dad. he's running a top fed 75m sleved sloper "just piont & shoot" plus a gap titan. takes him like 20 minutes to get set up. he's got it rigged up pretty good. what we found is what basic antenna books say is "there is NO substitute for actual size "width" 1 1/4 wave "max, any bigger pattern gets to funny" better than full wave better then 3/4> 64 >1/2 ect.ect.ect.. the thicker,like folded & materails like 14ga vs 10 ga wire becomes more broad banded but lose a lil dbs. just like coils, & caps rob rx & tx if you run a tunner do not run a 1:1 balun "it's a coil" & transformers "traps" are only about 90% or so efficent & you realy can hear the differance like + in some cases you lose one of the bands around 17m to 20m. your balun mileage may very...how ever a 1:1 balun does smooth out the radition pattern & more broadbanded at a loss of only like a 1/2db. loded & tuned antennas like the j pole it's bigger "coil & cap tune no radiation occurs from the matching section" & more broadbanded than dipole but doesn't out perform. & you can make all most 3 sleved "bazooka" dipoles or a 3 stack colleaner out of one j pole. on 2m side mounted from 10th to 1/4 wave the j pole works o.k..most multi bands like fan & lattini some times pick up a lil bit of noise. if you can't hear-em ya can't talk to-em. & if you have to use coax "ladder line rules" use the best you can buy like lmr400. again you can hear the difference. No tunner g5rv it's all in the ladder line. strip 1" of insulation 1' up from the feed piont.then connect at the feed piont a 2',4',8' & a 16' length in parallel to the part you just stripped.in theory, i believe this trick will work on all window & ladder line fed antennas. looks realy funny but it works!!!! there's even hams that are trying to use a 2 screwdriver dipole with 8' whips, 18' as base antenna?. 1 screwdriver & a whip on the ground side works, like the windom... save your money & get a 10m beam with a remote tunner, don't forget to bypass the matching on the antenna. it will perform way better. or better yet! for more Dbs a 20m or even 40m.... bigger is better no way around it. & one controler will & dose work even with the 2 screws.though the motors don't move @ the exact, exact same speed, it will tune just fine & dose on my twin screw mobile. the twins reduce fading in & out. it's a old bleep trick. another thing was, screwdriver antennas don't cover 10m to 2m with 102" whips what we did was to put 1' alligator clips on the stingers at 2'&5' "just let them dangle like a lattine".& presto! for more directivity on tx, insulate from the mast. cross feed seemed to have no effect. the fan, lattini, maypole & caged antennas is where i got the idea for the no tuner loop. your radio will what the manufactures call "auto decoupling or band switching" go to the lowest swr or wave. just give it a path or a place to jump off. no magic relays. as soon as the snows gone & got all the parts, going to figure out a 65' top fed stepper type vertical. seems to me as with all verts tested. the top fed is far superior to bottom fed. so, here's the antennas from best to worst that we've tried. #1 @ 60 over the rhombic "truly the king, but not an omnie if you unterminate it's bidirectional ", 40 over the 4 element collinear "with 756' of wire, on 10,20, & 75m the franklin rules", i use this one the most, place in lazy Z for omnie",it's just 2 full size dipoles. short the feed lines & end feed them. you can also can use coax for the tuning stubs. don't forget to subtract the velocity factor on the stubs & the ends. on 75m the coax stubs seem to be a loss of about 2db. 30 over a end fed 2 element collinear found this by mistake it was a franklin when high winds took down the other 2 elements @ 20 over, full wave no tuner all band 160-6 loop " Add a 66',30' &17' or so" in parallel "to make a triangle & 2 trapezoids" to each corner " like dr ace says "short the corners" or a 40m delta loop in a 75m diamond in a 160m square. with the corners connected, see pic. you'll need 973' to make one. it'll cover all hf bands with out tunner! your simply giving different paths at different lengths. all the hf freqs are covered with no freqs higher than an SWR 1.8. the reason i played with the loop is because. had a 3.9mhz loop. worked great there but not so on every other band. "on even wavelengths". so put up a 1.9mhz loop thinking bigger is better, and it didn't do as good on 75m..and again every other band. so: the inner most loop is redundant but it helps keep more of an omnie pattern on the upper bands. i've fed it with 62' ladder line,62' coax,100' rg58, 9913 & lmr 400 coax doesn't seem a effect it much. 4:1 ballun flated the swr out even more. if swr is a lil high on one of the bands add a length of wire to one of the corners or across jummpers, 1' where all 3 wires intersect at one side of the feed point. another important thing is to not make this antenna symmetrical, say each corner off by 1' X the corner. this will also help keep swr low through the freqs. more paths at different lengths...if you have a 80m loop and you want 75m with no tuner, add 10' across each corner, & tada! next step is a round loop. from the top view i'm thinking it'll look like looking down a rifled barrel. like the beginnig of the james bond movies. have not figured out the math yet. should be a couple more dbs. &@ 10 over, extended dbl zep, cobra "barefoot it's fine, big losses at legal limit, infrared shows heat in the middle of each leg. falls short on 160m & some bands tied with ex dbl zep", .64 switchable maypole "liked this one until the mfj remote antenna switch failed. went from omnie to v beam in to invert v to sloper", .64 v beam, 160m top fed sloper "if you add cap hats on the element @ the 1/4 wave points like 40-20&10 measure from the top. the freq of interest, auto band switching cuppler. no tuner! 1' alligator clips work to. like the cap hats ie.the lower the freq the bigger hat or longer the wire. this trick seems to work on all antennas. at one point i had a tin can lid for 10. #10 lid for 20, 5 gal lid for 40m. garbage can lid for 75. looked way to funny, but worked. ,.64 end fed zep "invert l", ladder line fed dbl bazooka,top fed sloper fan, bottom fed sloper tied in every way with the M or hex beam , 1/4x1/2 wave invert l, shunt fed 60' tower "great vert", triple bazooka,1/2 wave dipoles ie... dbbl l, z,h, m, w, u, v, fan, lattine "just let the auto cuppling dangle", @9 over,1/2 wave bla bla bla 1/2 wave is a 1/2 wave, ccd "alot of work for less of an antenna about .5 db < a plane old dipole". no tunner g5rv, g5rv about 1s under dipole inverted v is a vary popular way to place a 1/2 wave dipole, how ever if it's at a hight of less than 1/2 wave, you realy need to flat top it, you'll be pleased with the extra gain "somthing like 2db" & it's still an omnie. ..for extended or .64 wave same thing but if < 3/8th wave hight. & full wave antenna @ <1/4 high. flat top it! now on the flip? the inverted v is more stable, less fading in & out. like the circular polarized antenna. but only when fliping flopping long to short skip, invert v worked pretty darn good.g5rv, then the folded dipole, then the windom "performed only as the short side X 2. so if the short side is 40' it preformed like a 80' dipole", 40' loaded dipole like an alpha, got to play with a mfj-1785 80,40,20 rotatable dipole. realy liked this one. tuned on all hf bands.seemed to performe better than a 33' antenna & you only have to turn it 90 deg, but kind of flimsy. ladder line btv5 "this antenna realy comes alive when with fed 61' of ladder line + gained 160m! don't know why hustler doesn't mention this", top fed marconi, top fed gap "titan", @s8,coax fed btv5 ,20' loaded dipole, 2x 102" dipole with scg remote smartuner, 14' ham stick dipole" thats 2 x 7', marconi, junk pole alot of work for less of an antenna, 8' ham stick dipole & last place @5#s the 80-40 isotron "worked good as a mobile just need to keep the wind from killing it" so all & all. on rx & tx. from the franklin at s40 over, to the isotron at almost s5. it is like difference between a 5 watt qrp rig to full legal limit. here's a couple of shotouts on 10m & 2m, basically the same thing. 10m: #1 a 5 stack collinear antenna array made out of coax @ short center out for a 95 foot tall vert .rombic if you unterminate it's bidirectional, dreamchatcher loop, mfj6410 love that franklin after resoldering "if you place in z shape, bends @ the outer ladder lines, it becomes a omnie, 3 stack collinear short out for a 65' vert perf for 75m, delta loop, slim jim, skydoor, .64 ground plane, i2000, a99, starduster, dipole,jpole, marconi , 7' hamstick, 4' hamstick. one side note, the dreamcatcher loop at 12' off the ground was equal to a a99 40' up, thats 61' to the tip. 2m&440:hentenna "@ my qth between Mt rose & hough works perf as a bidirectional beam" & pulsar ultra, 3 eleyagi, slim jim, dipole, 1 stack colleaner j pole, jpole" did good side mounted @ < 1/4 wave from tower. echolink vs. irlp: both do & have about the same features. echolink is way more popular, something like 10 fold. even though irlp.net runs on "the old flinstone" lennox. the folks on irlp seem more,,,,passionate?. & thats it's down fall. as we know the world runs on windows & os. & can't run lennox at the same time, thus most people will need 2 computers. maybe there should be a way to tie them together? also: a great marriage saver is the cordless head phones! on other thing is, dyslexia & cw don't work to good. i'm just realy fortunate to have a wife & qth that allows me to have shoot outs at the antenna farm. come visit & hang a wire in tree! we have 99 camp sites 65 full hook ups & 2 cabins. 7 miles to smith peek lookout GREAT place for qrp. currently using: 12 volt ts-820s, ft-2800m & for backup ft-101b & swan 350 2.2 kw 6' 6 blade wind genny, 60a tristar controler, 6 golf cart batts "sams club", 2& 5kw inverter, 2x 600 watt hot water ele. for dump load. FREE heat! got to love that.... & when the power goes out i'm still on. and my other job: + 2m pulsar ultra "3 stack collinnear sleved vert" 2m hentenna 10m 5 stack coax collinear vert 20-40-75 top fed sloper. pionted at dad most of the time. 75m franklin 160m - 10m no tuner, all band, full wave loop maybe i'll call it the "spider web or dreamcatcher" what do you think? mobile #1 still testing in mobile #2: 14'8" military mobile whip antenna "1 full s unit over a 102" & about 2 over ANY screwdriver" ok, well only tried a tarheal 100a, scorpion black widow & high sierra 1800 all worked about the same with same stinger length & hats. & a sgc237 remote tuner. it covers 200m to 6m. BY the way the military doesn't use high q or loaded antennas vary much. & for 2m & 75cm a ruffrider hypergain "1 to 2 s units over the larson 5/8th wave" with a ft-857d, i had to put the filters in & what a good lil radio. & to get ladder line & coax inside use foam pipe wrap. works great. don't forget to lock the window down. & to sqeeze more out of your system: antenna analyzer shure saves alot of time. cut ie.. tune feed line "coax " in 1/2 wave lenghts - velocity factor. dummy load at the end of the line will help find freq(s) of interest. remove 1:1 balun then adjust antenna & or feed line. replace balun if you must. try a sleved coax, flexable conduit works great as a sleve but, don't ground the top to the tower. a resonant antenna vs random length antenna with a balun & tunner. -1/2 db for the balun & -1/2db for the tuner "see your manuel" but you gain a lil for the longer wire, loss on the onimne. -1/2db & shure can tell the differance on qrp. like the "clean" low modulation, broadcast quality stations can't be heard below the fringe area or through the static, but sound great when heard. for a given band the bottom "higher freq" your antenna has a higher gain. say for 75m a 1/2 wave is 6' or almost 2db @ 3.99 over 3.8 doesn't seem like much but could be the differance of making contact or not & my pet project is to get ham radios in long term hospitals & city hall. so far only 2m & qrp hf rigs are aloud. mostly 2m, better then nothing! there afraid that the hf buggers up there stuff....them old hams have a realy realy hard time with out fire in the wire. most don't want it. maybe, times to short for qrp. i guess that's why "beeps" get out better then hams. & another project is: I remove old satellite dishes and or convert them in to solar cookers. with automatic tracking from redrok.com. vary easy to do.plus i love to solar cook. my big cooker can hard boil 8oz of water < 1 min. i've entered the cook off at taylorsville ca. for the past 15 years. been champ 10 times and always in the top 4.
so ther's my rambligns. thank you qrz for the space.... i hope the info helps ya. & pray for global warming, i mean sun spots p.s. don't be rude & if you have tune up on air, please go up or down 5 or so.... dennis --... ...-- Last modified: Sun Feb 28 13:40:08 2010
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