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Homemade antenna

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Old 04-12-2008, 01:09 PM   #1
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Default Homemade antenna

I suppose you all have already seen the homemade antenna on this forum which uses coat hangers mounted on a 2' 1 by 3 board. I used 12 guage copper wire (a little stronger). I just wanted to say that before I was using an outside Channelmaster or Wineguard (not sure which) on my roof. I could not pick up NBC or Fox without occasional dropouts which drove me buggy while watching 24. I heard about this one and how it even picks up the weaker stations. Since all my stuff is temporarily packed away, I bought everything including 5' of 12/2 guage house wiring. (3 wires of copper) The 12 guage copper seems more stiff and you don't have to sand anything.

After putting it together, I checked the major stations and my weakest station was 80%. Most were around 90% with PBS at 100%! These numbers are higher than my roof antenna which I repeatedly moved around and checked and rechecked for bad connections. Here is the youtube link:

Since this is my first post, I cannot link you to youtube video, but do a search on this forum and you should find it. It's the one where you have (4) V shaped wires on each side of the board.

Sorry if this has already made the rounds. Maybe someone new will benefit from it.
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Old 04-13-2008, 03:48 PM   #2
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thanx for posting.

When i build mine... i will use brass rod or welding rods without flux.
then solder all joints.

I may even use CopperWeld wire... (steel wire copper coated).
Really stiff.

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Old 04-14-2008, 01:29 AM   #3
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I have built 4 of the YouTube design and I am pleased so far. I have 4 stations together @21 miles, another at 28 miles about 35 degrees away. Then another PBS off to the side. With careful placement in the room, I receive all the stations without moving the antenna. When I hang it on an interior wall, I get just a few dropouts on the PBS off to the side in IOWA during the worst days.
THe best performing antenna is one with copper wire with 7" whiskers at 6" spacing. The coat hanger with 7" whiskers and 5 3/4 spacing is a close second in performance.
My CM 4221 4 bay with a reflector is on my roof, feeding my 622DVR. It pulls in the signals great, but the PBS off to the side suffers dropouts during some days.
As the coupons come in for some retired folks that still use rabbit-ears, I am setting them up with the home-made antennas. I bought a sackful of 300/75 ohm baluns for a buck each, so these antennas will be cheap. I use a CECB for my garage TV with good results.
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Old 04-14-2008, 08:38 AM   #4
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How nice of you to help some of the older folks out. What a guy! I bought my 300ohm to 75ohm balum at Rat Shack since Home Depot was out. At 4.95 plus tax I knew I was getting taken, but I only needed one. What a deal at a buck a piece! You have also done far more than I in experimenting, but since mine is working fine, I will keep the 5 3/4" spacing. But I'm moving out further from the station towers, so I'll keep the 6" spacing in mind. Thanks!
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Old 04-23-2008, 12:35 AM   #5
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Quote:
Originally Posted by spokybob View Post
I have built 4 of the YouTube design and I am pleased so far. I have 4 stations together @21 miles, another at 28 miles about 35 degrees away. Then another PBS off to the side. With careful placement in the room, I receive all the stations without moving the antenna. When I hang it on an interior wall, I get just a few dropouts on the PBS off to the side in IOWA during the worst days.
THe best performing antenna is one with copper wire with 7" whiskers at 6" spacing. The coat hanger with 7" whiskers and 5 3/4 spacing is a close second in performance.
My CM 4221 4 bay with a reflector is on my roof, feeding my 622DVR. It pulls in the signals great, but the PBS off to the side suffers dropouts during some days.
As the coupons come in for some retired folks that still use rabbit-ears, I am setting them up with the home-made antennas. I bought a sackful of 300/75 ohm baluns for a buck each, so these antennas will be cheap. I use a CECB for my garage TV with good results.
I just built my 5th YouTube. My workmanship has improved some. Now, coat hangers with 7" whiskers on 5 3/4 spacing is my best one. I've just did a CECB Insignia & Youtube for an elderly widow in ZIP 61260. THe antenna is behind her couch.
The attachment shows my Vanna & my latest.
Attached Images
File Type: jpg finalDesign.JPG (243.5 KB, 471 views)
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Old 06-11-2008, 11:25 PM   #6
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Hi
This is my first post to this forum. I am an old guy that likes to make things like the antenna in the post. Where would I get plans for one like those you have?
Jim
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Old 06-12-2008, 09:02 AM   #7
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Default Home made antenna

Hi Jim,
Just to make sure the post about the antenna is still on the forum you were on, I went and just did a search about home made antennas and it popped up. If it doesn't pop up, you might go into the section which talks about reception and OTA antennas right in the description. That's where all the topics are listed on one page.
The antenna I made is the one where there are 4 V shaped wires on each side of a block of wood. No other metal things are there except a couple of wires on the board itself. There is one other listed, but I didn't build that one.
Good luck,
Jerry
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Old 06-12-2008, 09:07 AM   #8
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Quote:
Originally Posted by jasher View Post
Hi
This is my first post to this forum. I am an old guy that likes to make things like the antenna in the post. Where would I get plans for one like those you have?
Jim
Welcome to the forum. At this writing I have built at least 12 of these coathanger antennas. I have tried various spacing & whisker lengths. The Youtube design has 7" whiskers and 5 3/4" spacing. I am now building mine with 8" whiskers and 8" spacing. This variation failed before, but I must have had a construction problem.
Here is the Youtube link to get you started.
http://www.youtube.com/watch?v=EWQhlmJTMzw
And this is my latest build shown as the attachment. The 300/75 transformer is called a balun. At Radio Shack it is about $5 and Lowe's about $4.
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File Type: jpg 8X8YoutubeA.jpg (28.1 KB, 244 views)
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Old 06-12-2008, 09:16 AM   #9
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Quote:
Originally Posted by jasher View Post
Hi
This is my first post to this forum. I am an old guy that likes to make things like the antenna in the post. Where would I get plans for one like those you have?
Jim
I should have attached this pic. It shows the antenna better.
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Old 07-18-2008, 05:27 PM   #10
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Your link to you tube is missing. If your antenna is still on there please send a link to mollyjon@verizon.net
thanks
John S
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Old 07-30-2008, 08:05 AM   #11
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I have built a few homemade antennas just to see what I could do.
The best one so far is a simple four bay. It started out as an eight bay stacked, then I took it apart and changed it to eight bay side by side and then cut it in half and made two four bay's out of it. I gave one to a friend who has it in has attic and it works great for him and the other one I gave to my boss. His father-in-law lives in an apartment and tired an expensive indoor antenna (Looks like 3 panels connected together), the Zenith Silver Sensor (Worked better) and then my homemade antenna. The homemade four bay did the trick for him, he has it inside behind a chair. It cost me next to nothing to make and preforms much better then more expensive store bought antenna's.
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File Type: jpg 100_2230.jpg (81.9 KB, 330 views)
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Old 07-31-2008, 01:45 PM   #12
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Quote:
Originally Posted by static1701 View Post
I have built a few homemade antennas just to see what I could do.
The best one so far is a simple four bay. It started out as an eight bay stacked, then I took it apart and changed it to eight bay side by side and then cut it in half and made two four bay's out of it. I gave one to a friend who has it in has attic and it works great for him and the other one I gave to my boss. His father-in-law lives in an apartment and tired an expensive indoor antenna (Looks like 3 panels connected together), the Zenith Silver Sensor (Worked better) and then my homemade antenna. The homemade four bay did the trick for him, he has it inside behind a chair. It cost me next to nothing to make and preforms much better then more expensive store bought antenna's.
On the 8 bay stacked in the pic, did you connect the two halves using equal length of coax? Or does it matter?
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Old 08-01-2008, 06:57 AM   #13
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Quote:
Originally Posted by spokybob View Post
On the 8 bay stacked in the pic, did you connect the two halves using equal length of coax? Or does it matter?

I did have them connected with an equal length of coax to a simple splitter used in reverse. (I would have liked to try it with a real combiner)

I did try it both ways and it did not seem to matter.
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Last edited by static1701; 08-01-2008 at 06:58 AM. Reason: One more thing
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Old 08-01-2008, 12:59 PM   #14
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I, myself have always wondered how much improvement a solid reflector would give over a mesh one. Just for grins, I'm planning on going up to the roof and put something nice and shiny on the back of the refelctors of my xg-91, just to see what happens. I'm thinking foil covered cardboard, but I wonder what an actual MIRROR would do? I'm curious. (Yes, I know about the wieght and all, I'm not giving a crap about weight or wind loading, it's just for temporary experimentation purposes.)
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Old 08-01-2008, 01:46 PM   #15
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Quote:
Originally Posted by alphanguy View Post
I, myself have always wondered how much improvement a solid reflector would give over a mesh one. Just for grins, I'm planning on going up to the roof and put something nice and shiny on the back of the refelctors of my xg-91, just to see what happens. I'm thinking foil covered cardboard, but I wonder what an actual MIRROR would do? I'm curious. (Yes, I know about the wieght and all, I'm not giving a crap about weight or wind loading, it's just for temporary experimentation purposes.)

I tried it with that 8 bay that I built and it made no difference at all forward, but it did cut down on signals from the backside but just a bit. I found that is was not worth it do to the wind loading on the solid reflector.
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