don't go we're out finger eatin guitar string special hello I'm Scott Brown
with green wind another home energy today we're going to build an HD antenna
I've cut this piece of tape stick down to about nine and a half inches plus
I've also cut a notch in right at about four inches from the end reason being
I'm going to go ahead and show you right here where I want to start this will be
my first mark and make that right there and make it on the other side take the
total length of your piece of PVC put your hand on top like this and go the
full length draw in one whole line all the way down without letting it roll
that will keep it on one one straight line down there and pretty good and I'm
going to be the same thing again that way I have a line on the opposite side
these are where you wear your aerials are going to start coming out all right
from this mark here I'm going to go down nine and a half inches make another mark
we're going to make four marks down this side there's nine and a half inches and
another nine and a half inches and another nine and a half inches flip it
over do the same thing on the other side nine and a half I like doing it this way
rather than using the tape measure saves confusion from making mistakes or
reading a number upside down and getting things off and these two marks should be
exactly side by side which they are okay from here on I'm going to drill holes
where these are okay now I have all I have all my holes drilled nine and a
half inches apart I got all my holes drilled I drilled with an eighth inch
drill and I even tried one of the screws after stuck the screws in it
these sure threads good this screw once it's in these screws are going to touch
so I'm going to wind up having to grind them off and then put them in grind them
off a little shorter or find some shorter screws using these sealing tires
for aerials on this eight antenna see I'm moving that pretty fast
one hand that full-length these are six foot long and they don't get a permanent
Bend so they're pretty stout and they'll stay pretty good plus they're also
galvanized that's going to keep me from rusting pretty good salsa means the
legends income composition of this is also going to make it make a decent
connection see they're six foot I'm going to cut them at three three foot
lengths and just bend them straight in half so I'm going to go ahead and
measure these out and cut these and then I'll show you the bends okay laying this
out you notice right here I've got to market eighteen inches and I've got a
mark here at 36 inches which is three foot and one more mark right over here
at 54 inches which you can't see well on the camera and I'm going to use this one
has the template for the rest of these I marked all the way across and rolled it
and roll all of these he'll add a mark that I could see all the way around and
keep on going and I did the same here you see the mark is all the way around
and one more right here that's all the way around alright now
what uh all I really need to do is cut these in half and then Bend these in
half and I'll show you how to bend the ends of these okay well I was too lazy
to go find the cutter you don't have the cutters will do this it's important to
keep these wires pretty much straight grab next to the mark not on the mark
but next to the mark because that's the part that's going to bend a few bends
back and forth this'll break coathanger has a tendency to want to break about
the time you get it where you want it that's a lot of work for nothing
now I have eight I'm sorry four plus four that's eight of them that's gonna
do all these a little marks on the PVC right here you grab these grab it right
next to the mark you can see I have a little bit of silver between the green
and the mark squeeze them in important that I want this screw to be able to go
through here and then about on the other side of the screw I want to be able to
grab this about the width of the pliers Bend a ninety degree angle
that's not like that get is pretty sharp then I want to look at the plane that
the pliers are lined in and I want to bend this out just a bit these should be
about five and a half inches apart and after they are on here they should be
about four inches from each other that makes a total of four and a half and
five or I'm sorry yeah four and a half and five inches makes a total of nine
and a half inches now we're going to do this to every one of them the reason why
I'm doing this this way instead of the way my friend showed I'll demonstrate
this make the bend here and I'll go to this side and do the same thing and get
the rest of this Bend in here there we are
I put this to a screw here and the weight wants to go down these are not
very stable it's kind of hard to even hold it just pension it by hand it's not
very good but like this I can shake this good so if I screw into the side and
have these going out like that makes it much more resilient much sturdier and I
like these wires because you see I could shake it like this they're not going to
bed when I tried earlier with 14 gauge for bird sat on that it would Bend so I
got the ceiling tile wire it's pretty cheap you can go right down to your
local hardware store and get it I tell you want some sealant I wore for doing a
grid ceiling and it's inexpensive and if you really wanted to you can solder to
it because the galvanization is a zinc and lead and composition I'm going to
use these bent washers that I made reason why I said don't bring it real
close to it because that the screw is going to go through here and hold this
and that Bend is go right around here to hold this this way it's going to last a
long time plus when I put my other wire I'm going
to put it right in between here and that little gap between the bend and here and
that should hold everything really tight and really make for a real good
connection say time to assemble this up first thing I want to do just go ahead
and take these screws set them in to the middle of the washers start getting them
on here with just a few turns I suggest using a nut driver keep
thread straight i'm not going to tighten this up i'm just going to get these in
the holes okay as you see well get out of the screen dogie as you can see I've
got four these mounted up get you a nice close view lay this down a little bit
and I've got the first wire set in has been over the top of the washer and set
in and screwed down this wire is going to go all the way around over here to
where this other one goes right here okay
got this one hooked up over here I showed that a second ago don't drag this
wire around like this but the area underneath the wire and then put the
washer on top I don't want to place one of these screws oh start turning it down
using a nut driver helps out an awful lot want to get it tight but not really
tight while we use the schedule 40 it's a lot stouter that's strong I'm going to
do the same thing with this one slide this underneath it washer up on top set
the screw in not tighten it up very hard this doesn't take much when I'm done I'm
going to run tie wraps crossed it it'll make sure if anything ever moves or
strips it'll still be there and I got one more on the other side just
underneath it right down on top of it screw it down and old compress about
three to five foot-pounds yep nice and stout okay so look it up at the top
we've tighten the first one and I've come around over to here and I've put it
through the same slot and hole and then come straight down here instead of
wrapping around and then from there I went around the pole over to here in the
same direction it's twist this way and comes down and then continues to rotate
the same way around down here to the fourth one the same distance that I got
between here and here I'm gonna have to go down drill one more hole right down
here and that's my 300 ohm transformer - 75 ohm cable is going to go and the rest
of this down here I should have a screw that goes all the way across and the
rest of this will slide down over a pole and we'll stick it up in the air run one
screw through and that should keep it from turning so you can use what we call
an Armstrong rotor that's where you grab the pole that's at the ground and you
use your arm like this and turn the rotor you are the rotor if you can put a
fair vice grips that you're not using or something on there some kind of a handle
that points one direction you won't have to look up in the air into the bright
Sun to find out which direction your antenna is setting you can always turn
it like this like this now this antenna is going to receive from this side
it's going to receive from that side it's called the bi-directional antenna
the reason for four elements on here is if you just had nothing but a dipole set
up sitting out here your angle of takeoff would be something like that
once you put a couple more on top of it it squishes that signal down and brings
it closer to the horizon so you can pick up farther now I'm going to finish this
up and show you the result and we're going to go ahead and tune it up and see
what it comes out to okay so once again now I've got both sides on it it's
connected here this goes around and the other ones on the opposite side keeping
the same exact distance because the pipe is the same thickness all the way
through this is very important keeping these two wires exactly the same
distance apart all the way through your antenna make sure that you don't have
any spots that are out of resonance oh there we are
so here the half wave dipole switches and it goes straight down here and then
the switches again okay right here I'll have another piece of PVC it slides up
inside right here there's a screw that went through it to hold it
the 375 on transformer to a couple of these washers you see the wires
underneath set at exactly the same distance that I got these aerials all
separated plus the aerials splitting like this allow for the harmonic and
resonant frequencies with the audio and the others and I need a cap on the top
just like this one but this one's too small for the meantime I don't care if
water runs down the middle of this if it rains and I'm going to stick it up to
this cable and I want to run up inside and we're going to see how many channels
we can pick up I'm forty five miles away from the big city
this way is north and that's the direction 45 miles to the nearest TV
antenna then goes about another 40 miles about that direction that's the big
talent Dallas by gosh Texas and there's a few more there so I'm going to kind of
aim it in between like right here that's where I've got my best reception on all
the other one and we're going to go in there and do a channel scan and see how
many channels we can get it 45 and almost 95 miles away okay I've got a TV
adapter hooked up to my computer and we're fixing to scan
channels start and the scanning is in progress and I'm gonna turn the camera
so you can see the right side of my screen a little bit more this will tell
us how many channels we got Kirk I've got three channels I'm showing five
channels six channels seven channels nine channels ten channels whoops just
went to eleven we went thirteen fourteen sixteen then dropped up to 19 20 and 21
22 23 24 channels 25 it's got a ways to go seven 28 29 30 31 32 33 you drop it a
few more here in a second I've still got one third of the band to go 33 channels
34 35 remember we're 45 miles from a few of
them and about 95 from the rest of quite a disc it looks like 35 channels is all
we get there we go 35 channels it looks like the scan is complete but anyway 35
channels not bad to look at KD T n KD fw k XA s and s TD WFA WFAA -
and there's Katie BT kera world kuv n a Spanish channel a KD f I show that I got
quite a few channels here
gone down high on life Kibo smile and lace JC TV Church channel TVN huh that's
a good view it anyway I'm Scott Brown with green wind and other home energies
let's show you one channel here and of course I tuned in to the church channel
let's see here trying to show a signal strength here
dbn there we go 99% signal strength and 100%
signal quality go down to the other channel and see what that one was there
signal strength 74% hundred percent signal quality check another channel
jaesi TV looks like we have 99% and 100% signal quality well my computer's a
little slow shows a little distortion but anyway I'm Scott Brown with green
wind and other home energies many good things to you and yours
on home