Great video - thanks for uploading. I've made several dipoles in the past few months (2) 10m and a 40m. As my design improves I appreciate the center piece you featured here. I plan on adding this as my antennas evolve. Thank you - 73
Good video. I noticed that you soldered the center conductor to the center of the SO-239, then you soldered the second wire for the braided portion of the coax to the plate of the SO-239. Just curious, would it have been a bit more secure if the second wire was soldered to one of the four screws/nuts instead of the plate? Just asking because I was curious as to how the second solder joint held up after use. 73! Gary, KB5AEB
Ah! I found half inch plexiglas. And cut it in to rectangles. Got so much it will last me the rest of my life time. So when I install my dipoles I set the wire then coat the joins with liquid tape. Dry? Pull her up and on the air. Tks Fer the show de kv4li
Ps I use a beer can to wind a choke, at the terminator. Then use a wire tie to hold coil near and use a UV safe zip tie to relive the stress on pl259. Once again my liquid tape at the ready . To seal up the plug
Thank you for the video. What size (inner diameter) PVC pipe did you use? Seems to be a very tight fit of the SO-239 into the bottom piece. Did you have to grind off the corners of the S-239 to get it to fit into the PVC end cap? 73
Gosh ... I don't know the diameter...I went to the hardware store and just found fittings that would work. Yes, you may need to grind off the corners to get the 239 to fit.
It's going to depend on the wire you choose for the pass throughs and also the size of the mounting holes on your adapter and the bolts you choose. I would just go to the hardware store and find out what bolts fit your adapter best and look up what size but they need by their stated size on the package. I usually just eyeball it. If you want a more permanent center insulator I recommend using silicone glue on all the holes. Wipe off any glue that gets on the UHF threads. The standard UHF hole should be pretty close to 5/8ths. G'luck
Yes you could make a dipole antenna and use it for CB radio. CB antennas are usually verticals though but you could try it and see how it works. This center insulator will work on any wire antenna where you are connecting coax for a feedline. Just make sure you cut your wires the right length.
How about a detailed list of the parts in the description needed to assemble this device? Screw sizes, nuts, washers, wire gauge, and PVC cap sizes, please...
I made one for a “horse fence” antenna seven years ago. Got the PVC and hardware at Home Depot. Already had the SO 239. I think cost was about $7.00, give or take a few cents. Was worth the time and effort. This is a good and helpful video.
WRONG WAY. NEVER USE STEEL PARTS. They are extremely lossy. Antenna connections must be SOLDERED not mechanically connected bc RF causes extreme oxidation and corrosion. .NEVER twist the antenna wires at the feedpoint, that does bad things to the fields.
Great video - thanks for uploading. I've made several dipoles in the past few months (2) 10m and a 40m. As my design improves I appreciate the center piece you featured here. I plan on adding this as my antennas evolve. Thank you - 73
That's great. Enjoy! de N2RGT
Great video. I always used grey electrical boxes, that said, the price for those is out of sight now. This will work fine.
Yes. Everything is so expensive now. They are making life very difficult
Clear and to the point. I'll be giving this a try on my first antenna build later this month. Thanks for posting.
Great! Good luck. Thanks for the comment
Great video! I've been looking for a detailed video like this one.
Thank you. A lot of people helped me along the way. So, I try to do the same. Glad you liked the video
Great video! Thank you for posting! Looking forward to making a few of these for hunting camp! Your an inspiration to all new hams out there! 73's
Thank you. I like to share what I have learned about our great hobby. Good luck with your projects and enjoy that hunting camp!
Great video buddy! Thank you! I love making center conductors, those are so fun!
Sir, Nice video presentation. Thanks 👍.
Profesional job sir.
Thanks.
I enjoyed your comments and ideas. Looks good.Kf5k 73
Thanks James.
Really good video. Thank you.
Great video! Thank you very much for taking the time to video!! 73's
Good video. I noticed that you soldered the center conductor to the center of the SO-239, then you soldered the second wire for the braided portion of the coax to the plate of the SO-239. Just curious, would it have been a bit more secure if the second wire was soldered to one of the four screws/nuts instead of the plate? Just asking because I was curious as to how the second solder joint held up after use. 73! Gary, KB5AEB
Thanks for the video.
Great simple video! Thank you!
Very good DIY video!! Thanks 73
Hello Tim, Fantastic job, Have you used it any power on this antenna? I'm curious if it will handle the legal limit. Thank you
Good video. Helpful indeed. Thank you.
Thanks for the video!
Ah! I found half inch plexiglas. And cut it in to rectangles. Got so much it will last me the rest of my life time. So when I install my dipoles I set the wire then coat the joins with liquid tape. Dry? Pull her up and on the air. Tks Fer the show de kv4li
Like the idea of using a screw to secure both pieces!! maybe use Anderson connectors to connect the wires? justathought
Ps I use a beer can to wind a choke, at the terminator. Then use a wire tie to hold coil near and use a UV safe zip tie to relive the stress on pl259. Once again my liquid tape at the ready . To seal up the plug
Very helpful! This is my next project. Does the PVC housing (cap and receptacle) have a name?
I really don't know about a name. I just went to the store and started putting pieces together.
Great tutorial. But don't we need to use a balun too?
No, you don't need a balun. Just tune up and go!
great tutorial
Thanks!
Fantastic video inspiring to see how feasible this can be. Thanks and 73! KO4KMA
Thank you for the video. What size (inner diameter) PVC pipe did you use? Seems to be a very tight fit of the SO-239 into the bottom piece. Did you have to grind off the corners of the S-239 to get it to fit into the PVC end cap? 73
Gosh ... I don't know the diameter...I went to the hardware store and just found fittings that would work. Yes, you may need to grind off the corners to get the 239 to fit.
@@TimTools99 Thank you 73
metal base must go on outside, otherwise the screw thread is too short for pl259
Hint: Using your step bit, enlarge the hole just enough to accommodate the outer screw-on sleeve of the PL-259.
Great video.
However what is the plastic pot you used? it looks like some domestic plumbing, but I have never seen anything like that.
PVC fittings
@@TimTools99 Domestic plumbing PVC fittings?
Never seen anything in that kind of configuration.
Xclnt build,,,store boughts, are too pricey,,,this is an xclnt design, and will last 4ever,,,cool vid,,de NV1H😎
Nice building instructions THX 73 Do9Du
You are welcome. Take care & good DX! 73's
Can you provide the drill bit sizes that you did in this video? Thanks
It's going to depend on the wire you choose for the pass throughs and also the size of the mounting holes on your adapter and the bolts you choose. I would just go to the hardware store and find out what bolts fit your adapter best and look up what size but they need by their stated size on the package. I usually just eyeball it. If you want a more permanent center insulator I recommend using silicone glue on all the holes. Wipe off any glue that gets on the UHF threads. The standard UHF hole should be pretty close to 5/8ths. G'luck
Could I used this same dimension for a TRC-485 CB radio in my home, as a base station?
Yes you could make a dipole antenna and use it for CB radio. CB antennas are usually verticals though but you could try it and see how it works. This center insulator will work on any wire antenna where you are connecting coax for a feedline. Just make sure you cut your wires the right length.
How about a detailed list of the parts in the description needed to assemble this device? Screw sizes, nuts, washers, wire gauge, and PVC cap sizes, please...
gosh ... I just grab some stuff and screw it together. I don't have a list.
I enjoyed the video you done a great job explaining how to make the center 1:1 . 73 AE4OY WILLIAM Peacock EM-81UF
Awesome
So how much do you think your project cost?
I made one for a “horse fence” antenna seven years ago. Got the PVC and hardware at Home Depot. Already had the SO 239. I think cost was about $7.00, give or take a few cents. Was worth the time and effort. This is a good and helpful video.
WRONG WAY.
NEVER USE STEEL PARTS. They are extremely lossy. Antenna connections must be SOLDERED not mechanically connected bc RF causes extreme oxidation and corrosion.
.NEVER twist the antenna wires at the feedpoint, that does bad things to the fields.
Good information
Great build but you sure did make things way more difficult on yourself than it needed to be.
Great video! Thanks.