Brookfield Freecycle: The "four-bowtie" arrangement works because of multiplicity and because
in-theory not all of the dipole crosses' width will be "seen," for the
higher frequencies in particular. This is why the width and polarity
between each dipole are critical. There is also a whole lot of luck at
stake, because the design hasn't changed since the 1960s, and it isn't
optimized for *any* specific frequency. For me the coat hanger antenna
works very well -- it may not work for all channels in all markets.
Probably it will not work at all for high-VHF. My market no longer has VHF
The poster's antenna doesn't consider the reception relationships from one
element to another. With today's error-correction it might not matter, but
multi-element antennas are usually stacked narrow-to-wide as one means of
dealing with multipath. Putting the elements beside one another may not
work --- be aware of that before you invest lots of time.
rb88888888 gmail: here is your research
lots of good local tv info = www.antennaweb.org
list of channels and freq =
speed of light / frequency = wavelength
speed of light = 299,792,458 meters/second
shortcut = wavelength = 300 / freq in mhz
speed of light in meters/sec = 299,792,458
inches/meter = 39.37
speed of light in inches/sec = 11,802,859,051
wavelength = 11,802,859,051 / video freq (listed below) * 1,000,000
this did not format at all like i had it. hope you can figure it out!!!
Chnl Video WaveLength WaveLength
# Freq inches ft and
2 55.25 213.626 17' 9 5/8"
3 61.25 192.700 16' 11/32"
4 67.25 175.507 14' 7 1/2"
5 77.25 152.788 12' 8
6 83.25 141.776 11' 9
7 175.25 67.349 67 11/32
8 181.25 65.119 65 1/8
9 187.25 63.033 63 1/32
10 193.25 61.076 61 1/16
11 199.25 59.236 59 1/4
12 205.25 57.505 57 1/2
13 211.25 55.872 55 7/8
14 471.25 25.046 25 1/32
15 477.25 24.731 24 3/4
16 483.25 24.424 24 7/16
17 489.25 24.124 24 1/8
18 495.25 23.832 23 7/32
19 501.25 23.547 23 17/32
20 507.25 23.268 23 9/32
21 513.25 22.996 23
22 519.25 22.731 22 3/4
23 525.25 22.471 22 15/32
24 531.25 22.217 22 7/32
25 537.25 21.969 21 31/32
26 543.25 21.726 21 23/32
27 549.25 21.489 21 1/2
28 555.25 21.257 21 1/4
29 561.25 21.030 21 1/31
30 567.25 20.807 20 13/16
31 573.25 20.589 20 19/32
32 579.25 20.376 20 3/8
33 585.25 20.167 20 5/32
34 591.25 19.963 19 31/32
35 597.25 19.762 19 3/4
36 603.25 19.565 19 9/16
37 606.25 19.469 19 15/32
38 615.25 19.184 19 3/16
39 621.25 18.999 19
40 627.25 18.817 18 13/16
41 633.25 18.639 18 5/8
42 639.25 18.464 18 15/32
43 645.25 18.292 18 9/32
44 651.25 18.123 18 1/8
45 657.25 17.958 17 31/32
46 663.25 17.795 17 25/32
47 669.25 17.636 17 3/8
48 675.25 17.479 17 1/2
49 681.25 17.325 17 5/16
50 687.25 17.174 17 1/8
51 693.25 17.025 17 1/32
52 699.25 16.879 16 7/8
53 705.25 16.736 16 3/4
54 711.25 16.595 16 19/32
55 717.25 16.456 16 15/32
56 723.25 16.319 16 5/16
57 729.25 16.185 16 3/16
58 735.25 16.053 16 1/16
59 741.25 15.923 15 15/16
60 747.25 15.795 15 25/32
61 753.25 15.669 15 21/32
62 759.25 15.545 15 17/32
63 765.25 15.424 15 13/32
64 771.25 15.304 15 5/16
65 777.25 15.185 15 3/16
66 783.25 15.069 15 1/16
67 789.25 14.955 14 31/32
68 795.25 14.842 14 27/32
69 801.25 14.731 14 23/32
70 807.25 14.621 14 5/8
71 813.25 14.513 14 1/2
72 819.25 14.407 14 13/32
73 825.25 14.302 14 5/16
74 831.25 14.199 14 3/16
75 837.25 14.097 14 3/32
76 843.25 13.997 14
77 849.25 13.898 13 29/32
78 855.25 13.800 13 13/16
79 861.25 13.704 13 11/16
80 867.25 13.610 13 5/8
81 873.25 13.516 13 17/32
82 879.25 13.424 13 7/16
83 885.25 13.333 13 11/32
2000SkyView: Interesting video... great idea! execution, questionable... what was the
point of this video? To help? or criticize others? Did a great job of the
second... #1 erase you knowledge, #2 watch your video, #3 ask yourself,
did I learn anything? Your video does not explain the construction of the
antenna at all... 95% of people watching this are going to build it
wrong... 98% have no idea what are you are talking about... they did not
read the same text books as you... need to simplify and show, think spoon
feed... thanks for the go at it...
Chris Grimes: Lol at people who bitch about him "ranting" and his foul language. A. He's
voicing his opinion in a video he made..surprise! . 2. This used to be land
of the free, but freakin cry babies keep finding more crap they don't like
and bitch about it till someone passes a law against it, freedom of speech
means he can cuss to...see point A. Finally, III. If you wanted a more
professional explanation with no bitching you should have Googled this
instead of watching a home video duhhh.
Tony Rose: I learned how to swear today but not how to build the antenna you're
demonstrating. Where do I go to figure out what frequencies are in my area,
what formula do I use to calculate the right lengths for the copper tub?
Why is your four foot loop coverd in electrical tape? How/why did you wrap
the thin welders line around the outside loop only, where and how did you
connect the back main wiring? How are the antennas interconnected and how
was the transformer connected to your antenna. You sound like you know much
but share very little.
Bruce Bender: We can live without your opinions. They lend NOTHING to the topic. Just
show us how to build your fantastic antenna and allow us humble mortals to
make the determination as to whether or not you know what you're doing.
Slamming people you do not know does nothing to enhance your status in the
eyes of others.
TOTO BOTO: Ask Hack is full of crap.
Susan Delacruz: This is a rant video not DIY stop cuzzing u tart kids watch videos like
this your sputtering makes it the worst video on YouTube tho bullies might
like it stop freaking cuzzin on YouTube
Thomas Luczak: you know, after reading many comments, i owe askhack an apology. i`m
starting to believe that the results from the 2 comparisons are influenced
by the brand of hdtv. i`ve read many comments with positive results from
owners of samsungs. i have owned 3 and currently the 2 i own now are 5 yrs
old but all of them could get excellent reception with OTA antennas.
starting to think samsung makes superior hdtv`s.
TOTO BOTO: You're full of crap. I made that antenna that that you speak of and it
turned out great better than what I can get in the store. Before bowtie 4
channels clearly, after 14 channels clearly. Again you're full of crap
because someone thought of it first. You're making it to anal.
Johnny Gibson: For the expense just buy a frikin' antenna.
cattey isaboar: I was hoping to learn something from this. after well over 13 min all
you'd done was cut four pieces of wire. I think your only goal was to show
how much better your 'round' wires look than the 'pointy' wire antennas.
at least the people who make bow ties at least they show where they connect the wires and how
everything is constructed...not just show off how pretty it looks once it's
finished. since you do know what quarter wave is you obviously have at
least some knowledge....so my next guess is.... weed?
Brazos Jack: Go wash your nasty mouth out with soap Jerk. It's not entertaining to use
Fxxk all the time in your video. Youtube should pull your video.
dietermoreno: So cable wants us to pay for movie channels, when we can now get those
movie channels for free on sub channels!
Of course cable won't show sub channels because cable wouldn't want you to
watch movie channels without upgrading to the premium package!
Thomas Luczak: another comment i was going to post last night but didn`t. i wanted to wait
until we could compare results. my elderly neighbor (who was a model
builder for general motors for 39 yrs) finished building THIS antenna
yesterday. i didn`t because i didn`t have the skills nor the time. results?
THIS antenna, 24 channels. the BOWTIE antenna 28 channels. i have no dog in
the fight but there you go....proof.
Karl Kaufman: Would've found this video more useful if it had simply demo'd relative
reception of a so-called coat hanger antenna, built to specs, and this
custom design; and, then, demonstrate the design and construction of this
Also, a simple list of the number of channels received doesn't measure the
quality/success of the antenna. For example, my tuner recognizes a number
of channels for which it doesn't have a strong enough signal to actually
produce a picture. (see: WBBM) At a minimum, I'd think you'd have wanted to
demo the picture quality of the channels & frequencies for which the custom
antenna was designed.
Damien Hartley: those so called hd antennas with the center loop and tuner knobs are
completely worthless unless you are on top of a cliff in a glass house with
a all the tv tower transmitters in direct sight of the antenna with nothing
in the way.
Colin Bruner: I gotta say it. This could have been a most informative vid about antennas.
But the biggest problem was it contained so much personal rant and rave
rather than just show what you know. You seem to be intelligent on the
subject but classless in your delivery. Your foul language will limit your
influence. Get civilized. You need Jesus man.
Thomas Luczak: poor ASKHACK or should i say ASSHACK. i built it and it works
magnificently. gee, i wonder why so many people say the "bowtie" works
mint. take you`re calculations and stick them up you`re butt. what a clown.
Ron M: I am running a coat hanger ant and i got all the station I need and I was
living in Oakville Ontario with the coat hanger ant. I was able to get the
us networks from buffalo this include nbc cw fox cbs abc ion and so on
Ray H.: I live further out than this guy and with wire 16 in. long and get as many
channels. I am not sure where he learned his information but soulds like
it was off the internet. He could of gone to wallmart and for less money
than he spent he could of gotten a much better ant. Physical orientation
urbanstein69: I give you a + for at least for talking about wavelength, but where you
connect to the antenna does not determine polarity, physical orientation of
the antenna does.
Dale Hendel: First of all, almost every DTV station is HORIZONTALLY polarized, just like
they always were. Working in television, I happen to know this, but a
simple search of the internet will prove it for those who don't believe
me. How many times have you seen a roof antenna mounted vertically? Most
interference you will encounter is vertical, which was figured out a long
time ago. Of course a vertically polarized antenna may still pick up fine
in a lot of cases, but the effective range will be much smaller. Now, most
RADIO stations are vertical, vertical and horizontal, or circularly
polarized. This is because radio whip antennas are vertical, but your home
antenna is probably horizontal. Also, circular polarization is better for
moving vehicles in regards to multipath and interference.
Secondly, there is nothing wrong with a properly built four whisker bowtie,
at least for UHF (yes, they really are called bowties by people who know
what they are talking about). For those who don't know, UHF (as of now in
the US) are channels 14-51. Channels 2-13 are VHF, and the typical DIY
bowtie project is really just a UHF antenna. (Side note: In the US, we now
use virtual channel numbers; the actual channel a station is broadcasting
on isn't necessarily the channel number displayed.) You can spend all the
time you want debating the merits of closed vs. open bowties; but the
bottom line is, the two-, four- or eight-bay four-whisker bowtie with a
proper reflector is a proven design, and works well for UHF. I agree, for
picking up your channel 3 you need something else, like your loop.
James Kilminster: Why does this guy care so much about antennas?
jvadel7500: If your just going to screw a bunch of coat hangers into a board well your
not going to get crap! Didnt I feel stupied....well until I watched the end
of the video and realized I just screwed a bunch of hangers into a board,
didnt even follow any specs just used what I had and get 24 perfect
channels! Hey put some hangers on it and get 3 more channels.....lol
Shoot3r40: I have the coat hanger antenna I built for our 2nd house or cabin as it
were, in East Texas 75 miles from Dallas. It's nailed to a tree 10' up but
still under a canopy of tree's and I get 35-40 hd channels and 3 from
Tyler, over half of them are gospel channels or Spanish only channels. I
have 2 Samsung tv's the newer one has a stronger built in amplifier but no
complaints about the "coat hanger" antenna for me!
nozmoking1: I feel your grief over the gross misconceptions.You can get "usable"
performance from cutting an old steel slinky into two halves and making a
random dipole with a 300Ω > 75Ω transformer in any suburban area and never
know how close you've come to any particular wavelength. People believe
what they want to believe, that's for darn sure.
tom langley: Save you time...just add a dipole to the coathanger antenna! Same results!
skypilotEd: To finish: I then moved it just 6' outside in an olive tree 8' high. I now
have no loss of signal and get channels not even on the tower map site,
channels I've never even heard of. Non-believers JUST BUILD ONE put it in a
good location facing the towers according t the map and this will work
better than a $300 antenna! Thank you Askhack. BTW it didn't cost me a dime
I had all the parts at home used some old 3/8 copper tubing I can't solder
so I had to screw the wires to the rings.
AskHack: LoL ok big mac next time save the fast answers for McDonald’s. Maybe if you
would use a search engine next time before you comment and you wouldn't
look retarded. Show me a HDTV with twin lead screws on it. You have to use
a balun JFC a loop is 300 ohm, Whats the impedance of twin lead? whats the
impedance of RG-6? Have you even looked at FCC.gov related to digital
broadcasts ? Analog is horizontal and ancient like your info bro but i
guess i'm the moron.
paverop: You really lost me on the copper coils and the electrical tape on your
larger coil. Can you go into more detail about the reason why you
constructed it this way?
bigmackemail: this guy is such a moron. your loops are not magnetic loops, real loops are
smaller and need a special receiver.what you have are folded dipoles.theres
no benefit than dipole unless using twinlead transmission lines because the
impedance matches up better than to coax,but you're freakin using a balun
anyways,so dipoles will work just as well the coathanger antenna is a great
design and alot of places are horizontally polarized,so you just have to
rotate the antenna depending on your location
day dazed: Nothing wrong with calling it how you see it I see it as a kick ass video
richgriffesq: How are all those leads connected? Paralell? The welding wire on the big
loop: it looks like it exits the end on which begins the insulation. Is
that right? It then winds around the insulated loop and then deadends at
the point where the the big loop loops back on itself. Is that correct? If
I understand the big loop, it should work in ever locale, channels 3-12
being constant throughout the country.
nakyer: When I got my first digital converter box, I didn't have an antenna for it.
I used an adapter I already had, attached that where the antenna should go,
and from the adapter ran wires to a metal curtain rod on my window. It
77sharkdiver: it would be nice if you would cut the video in half andjust build it
voltairined: Contents: *terms/jargon/theory *static camera pointed at static objects
*verbal/auditory info over my head *avoid/fear the wrath of a coat-hanger
deprived, wrinkled-clothes-discovering wife Missing:
*explanation/definition of terms *practical application *web site for local
station FCC info *equation/calculation for correct wire/coil length based
on FCC freq/wavelength info *text, graphics, diagrams Info: 10/10 - Theory:
10/10 - Application: 1/10 - Visuals: 0/10
Juan Vega: this wpould be awesome with a better view of the wiring.
Jonathan Ashkenaze: 1. Great video. 2. Your complaining about others is distracting. The reason
we came to your post is to find something different. 3. Could you go into
the soldering you did - how, etc and did you simply merge them all at the
katrosper: Why not make the entire thing out of the welding wire? thanks
AskHack: Saying a bowtie is an efficent antenna is like saying a jeep is
aerodynamic. I can get channels plugging a piece of wire into the ground of
my electrical outlet and use the ground wire of my entire place as an
antenna. Does it work, yes, is it better than a resonant length of anything
(dipole, folded dipole, verticle, loop, yagi, quad etc)... NO lol. I bad
mouth the bowtie coat hanger because it is not resonant nor is it polarized
AxelLNo1: It would be really good if you would have built a coathanger antenna too
and compare the results in the end. That would support everything that you
said. (or at least to show channel 3 at the end to prove the theory) And
also more building steps would be appreciated.
freakqnc: sorry askHack you sound like you know your S*** unfortunately you assume
that everyone watching who want to give a cool DIY a shot can follow no
problem. I don't give a flying about others who made crapennas so no need
to waste time pointing that out. Could you make a vid for the less
knowledgeable? So we can learn a thing or two? What is the formula to calc
the length to cut and which resonant freq should one select to make one
that works in their area? What criteria must one use? Thanks man!;)
rob roberts: The bowtie antenna is awesome! :-) Hopefully you get a mil views so you can
stop pissing and moaning. lol
sam rafeedie: Say Hack, your words are so foul and filthy and therefore, since all words
come from the heart, so your heart must just as foul and filthy. Even if
you were making gold out of dirt, your words would distract the discerned
man from listening to you. I hope you clean up your act, because your act
is way to filthy for any decent man to listen to you.
cast390: Sorry bro I didnt come here for a theory lesson,just make the crap already.
paverop: I'm just curious about how you convert the frequency that the television
station broadcasts on to the quarter,half,and full wave lengths. Is there
anywhere that I can get that information?
Robert Homovich: lost interest in the video because of the nasty mouth. No need for the
Martha Wunsch: We're picking up 20 stations and that includes PBS stations with our coat
hanger antenna that I made myself. It's on our roof in Bonita Springs and
getting CBS, NBC, FOX, and ABC. That's enough, don't you think.
Micscience: Why does everyone have to be perfect? we are human sometimes people don't
conduct themselves in their best light. He even apologized. Why do people
not tolerate people in their highs and lows specially in TV or the
internet? We are taking the (human) out of humanity.
Schools: Learn how to get phlebotomy training in California! The job pays decent money for the amount of schools needed to graduate.