That is one beautiful antenna. Looks really majestic up in the sky. You have a gift of being able to build really nice looking antennas with a minimum of materials. You have inspired me to build Delta Loop for the 17 meter ham band since I have no antenna for that particular band.
Love your ingenuity, 151. If I had my way, I would have a shed full of ready to set up anntenas. But alas, Mama Won't Allow It! Last night on LSB 39 I was talking to Norhtern Ireland. Then went to AM 28 and talked all over the West Coast, barefootin'! Propagation Saturation!!! Hope to catch you in skip land someday. Tripe 8 in the Empire State. 73. 👋👋 😑🦗
Funny I was thinking about building 1 of these. Did it today blown away by the results. Went a couple of inches longer than your measurements for everything 1.1 swr over the 40c. 73s Steve New Zealand.
Pretty cool man. I wanted to build something like this for 20 meters. I wasn't sure how to handle the base part...and your idea with the plexiglass is a great idea. I think I am going to give it a try and see how it works. It's going to be for portable operations, so I am thinking of using some small fiberglass crappie fishing rods and the entire radiating part of the antenna will just be wire. Thanks for the idea!
Hey 151, well done again on your experimental "delta loop" antenna !!! You should change the "mower junkie" to "Mr. Antenna"......... Glad to see this posting and know that all is well with you and the family. Take care my friend, 73,,,,, 770-RI.................
Hey. John just want to let you know I built one of these after watching the video anyway been testing it today up 8ft and worked Portland Oregon on 3 watts “ssb” From Kansas with the delta loop!! Thanks for the info ! 73 from 892 Kansas!!
Many years ago, I had a 2element delta loop on 27mhz. Bandwidth was over 5mhz under 2:1 SWR. You just need a little height for them, they work best if you can get them about 25-30 foot up.
The worst thing about building antennas is finding out that they work better than expected, thats when you have to start another build. Now, when you building the mighty "Rhombic" antenna 151??? Great job Mower junkie, UDX 4570 Palm Springs said it!!!!👋🤠
Looks great I did a very similar type with two fiberglass fishing poles at 4mts each side and 36ft of washing line with the wire inside .. same as you a 75ohm coax as a balum but wound it around a 4-1/4” former then to 50ohm coax works a treat
Hi John. Great job as always with this delta loop. I really hope I can speak to you again. I've been speaking to Paul 063 a load of times. And always hope I can hear you . Take care my friend. Good dx. WR456🇬🇧.
I've been really busy lately, and haven't been on the radio a lot.....But I'm hoping that will change soon. I'll be listening for you 456. Take care, 73's from 151 SC.
@@MowerJunkie hi I just installed a Maco 5/8 I'm in Pennsylvania I was wondering if I could reach you on my radio running a Galaxy DX 94hp next time your shooting skip shoot me a message on here and I'll see if I can't reach you my name is Richard
Pretty cool construction. Makes me wonder if you could construct the same Delta loop with a Di-Pole. Could be be useful when it come to space limitations.
it's ironic that I came across this video today after I put together a 3 ele Delta loop a few hours ago. Mine is still on the ground waiting for better weather to try it on the roof. 14' boom and I'll probably keep it horizontal as you have done. A few years back I ran stacked delta loops(4 of them) and they were great for 10/11 meters. Good luck chasing the dx.
In at 499 with the 👍 and about a month late but I do love me some 151 Level Antenner Building. I think it's time for you to sponsor an in your yard hands on Antenna Building Seminar. Plenty of room for Tents and a Low Country Boil as I don't think anything I build is gonna hit your receive from the Western Slope Lands End Colorado. 😁
Remember also CMC can affect your readings. You really need to start incorporating baluns, or a least a decent ferrite choke for feeding all of these balanced antennas (you're feeding them direct with an unbalanced line, coax).
I built a similar delta loop. It was good for short skip. I used 6' of RG-11 coax I bought from DX Engineering. I used the formula 1005÷frequency in MHz.
Another interesting antenna project. MJ. Have you considered the Demi-Quad, which also uses RG-59 matching/Network. Vertical or Horizontal/Polarization, depending on feed-point location. Which could then transition into a 2-element/Quad that can be directly fed with 50-ohm coax. The single demi has a 2 Dbd gain and the two element-quad has a 7 Dbd gain. Still call out for you on 385 and your test freq, but no luck. Talked with 1963 Jamaica a few more times 73/88 DX21
Looks like prototype for the Maco V quad almost exact specs they use fiberglass tubes for spreaders and basically feed wire thru the pipes and spread to the other side and back down using gamma match instead of 7' 59 tv cable to match i made a box version decades ago out of old bamboo poles used to hold carpet ( dates me a little huh) it talked well audio on side and signal on front strange as heck
You forgot to tell us what size are the tires supporting the antenna....also, are they all weather? Just kidding 😄 Nice to see you back in action John. I was wondering what are you up to... and you did it!!! beautiful antenna. 73's, Nek, 63 Toronto..!!!
Brother I love your go get ‘‘em attitude.that thing will do amazing DX ing . I built one years back. I think you will be amazed at the outcome I’ve got several of the old antenna books from the ARRL American radio relay League Love them I’m glad to see someone else making use of there brain thanks John for your interest in antennas. Cool huh. Mower junkie should be antenna junkie love it brother. KC9LRA. Bob. Sand man. 94.
Fed at the bottom provides horizontal polarization. Feeding at a side provides vertical. Optional substitute parts: Fishing Rod Blanks or PVC with the wire inside of them. This antenna will work very well 1 foot above ground. Of course, 15 feet is better.
That is awesome I was gonna try to build one of those but I thought they use string for the top but you use wire I never thought about that so I’m glad I didn’t try to make it yet anyway I was wondering could you use 102 stainless whip used two of them the same way but you probably have to use some kind of a at the tip on top some Chyna spacer for the wire not touch the tips of them I don’t know if there a way to put 102 to stainless whip could that be done well I guess be the same way that one you made but that was the two ground plates on it with two stainless 102 stainless then you had to ground lines each side of it but I’m just talking about the one you built now if we could do it the same way with the two stainless whips could it could be done what it be like
Just to ask out of every antenna you've built or own which one do you feel is the best range local and DX and great receive I've kinda thought about either the most common Antron 99 or possibly the Maco V58.
My favorite of all my antennas is My Homemade 2 element Yagi on the flat side. It works really well for DX, and most of my locals are also on flat side. The Antron 99 is a good antenna, and very easy to setup....But the Maco V58 is a better antenna. Thanks for watching, Take care.
Hi John, since you are the man making all kind of antennas, how about rectangular (11 meters full wave) or Hentenna? I hear good things about these antennas but don't have space to make it happen. From my research, they do well and much better than ones we know; 1/2, 5/8, 3/4 waves. Just giving my opinion to the handyman!
What wire size wire would you recommend for using 500 watts on this setup. I am going to build 1. I have everything on order now. Thx again for the video
I figure you could add a 7 ohm resistor o get the 50 ohm needed, but that may affect your swr and have to make that adjustment. I'm not 100%, but it sounds reasonable in my mind.
Is the velocity factor of the 75 ohm coax 0.83? If so, at a freq of 27.385, the calculator shows 7.4528 feet which translates to 7' 5-7/16". Plus, I would assume the measured length would be from where the coax shield and insulated center conductor diverge. So your 1/4 wave stub might be a little short, depending on where you measure from. BTW, I'm just a dumb old bricklayer; know nothing about electronics. Love your channel.
What is channel 94 on the CB band? CB has sure changed since the 60's. I thought there were only 40 channels. 23 when I first started. 16 WATTS?? I am really confused!
I have a Maco V quad. Can I build a delta loop out of it? I cant get a decent swr on the V quad. Also can I use the Gamma match from the V quad on the Delta loop. Please try to respond.
I'm not sure I understand you, Because the V-Quad is a Delta loop antenna. double check all your measurements to insure they are all correct. if it's put together correctly you should have an SWR below 1.5. then fine tune it with the Gamma match.
@@MowerJunkie Thanks for the reply. I think my problem is that the V quad is way too close to my 5/8 verticle. As I turn the driven element of the beam away from the verticle, the swr goes flat. Looks like I'm going to have to move the verticle. Thanks. I scribed and liked.
Mr Mower Junkie, you should bore them with some of the details. It's always best to explain why you do something when teaching anything. At least that it's a quarter wave stub, a coaxial transformer, the same principle use for phasing. A few things I want to mention: I take it that's RG6. It's mass produced like no other coax. I also assume you used around 80% VF for your calculations. Now, yes you can question the quality of the coax, however I would be mainly concerned with the velocity factor. The consistency, reliability, QC. Although you did say you have an analyser, maybe you trimmed the length with that. Anyway, I would be inclined to use a military spec coax like a good RG59, with 95% shielding. Of course this will have a 66% VF. The other thing, we estimate the loop to be around 100 ohms in this case, but to see a 50 ohm input impedance with a 75 ohm stub, the loop would have to be around 113 ohms. If your stub is cut to a 1/4 wavelength, as per VF with 43 ohms at the radio end, this would mean your antenna has an impedance of around 130 ohms.
Let me start out by saying, I don't do these videos to teach people, I do the videos just to show what I'm up to. But I'm always happy to help others with their antenna projects. Thanks for watching, 73's from 151 SC.
@@MowerJunkie no worries, fair enough. Hey I've gotta pull my finger out and get my 4 element LFA back up. Then maybe I could make contact with you one day, I'm in Victoria, Australia. I've built a lot of antennas in my time (not a ham), the LFA is by far the best. One more thing worth mentioning, remember you can feed a delta loop at several different points and orientation. This changes polarisation and angle of radiation. I believe one of the top corners in that configuration is good for low angle. 535 Jeremy.
Oh another thing that short piece a real thin coax you said do used was a 7’4” why do you fuse the coax made like a choke 8 or 9 times with that Wrapped around a 4 inch pipe strap to would that make a difference it’s like a choke will get the ohms back down because I watch a lot of him operators using a choke for ohms
the 75 ohm coax does not need to be wound for this antenna, and mine is a temporary setup, so I just ran the coax down the mast. Take care Shep, Happy Easter.
this antenna was just an experiment to see if I liked a Delta loop. This past weekend I put together a Maco VQ3, 3 element Delta loop antenna with a Gamma match, So far I'm loving it!
@@MowerJunkie I loved the design, I'm a ham myself, but I still get on CB too. Have an old Midland 40 channel on top of my Kenwood TS-2000 amateur rig. I need to upgrade my CB radio to one with SSB though. CB was my first introduction to radio as a kid, so it still has a special place in my heart. I do a lot of experimentation myself. I currently have a whip for CB and an Inverted L for 160-10 meters, Comet GP95 for 2 meters, 440 MHz and 1.2 Ghz. I run a Kenwood TS2000 for the amateur bands, its a ham shack in a box, cover 160 meters-1.2 Ghz minus the 60 meter band. I'm setting up a satellite antenna array, I really want to make a contact with the ISS. I've tried using my handheld radio and yagi antenna, but the guys running 100 watts over power my 5 watts. Have fun on the air MIke//W8MLD.
@@MowerJunkie Hey let me ask you a Jeep Cherokee question. Does your Cherokee's rear hatch latch have a screw that comes loose but doesn't fall out, or tighten back up?
That is one beautiful antenna. Looks really majestic up in the sky. You have a gift of being able to build really nice looking antennas with a minimum of materials. You have inspired me to build Delta Loop for the 17 meter ham band since I have no antenna for that particular band.
Very nice work John . Simple , effective , and very DIY friendly .
Great job .
Thanks Dallas
Good idea with the Delta Loop, I'm still dreaming of a Fullzize 4 Element Hex Beam for just 11m. Good job 73s from Germany
I think I will have a go at making one of those. Love your antenna projects! 73's from 828
Very interesting. Well done video. Easy to follow, clear explanations, not chocked full of bs. To the point. Good stuff MJ. Gonna try this. 👍👍👍👍👍👍
Glad it was helpful, 73's
Thanks for the video on this antenna. Now I need to build either this one or the 2 element antenna on your other video! Good job!
Brilliant antenna John it looks like it will be really great when you get it all finished mate,, 26 cw 01 uk
Love your ingenuity, 151. If I had my way, I would have a shed full of ready to set up anntenas. But alas, Mama Won't Allow It! Last night on LSB 39 I was talking to Norhtern Ireland. Then went to AM 28 and talked all over the West Coast, barefootin'!
Propagation Saturation!!!
Hope to catch you in skip land someday.
Tripe 8 in the Empire State.
73. 👋👋 😑🦗
Thanks 888. Enjoy the DX, 73's
As always great intel on what we can do as low cost install and working as it should.
Funny I was thinking about building 1 of these. Did it today blown away by the results. Went a couple of inches longer than your measurements for everything 1.1 swr over the 40c. 73s Steve New Zealand.
Pretty cool man. I wanted to build something like this for 20 meters. I wasn't sure how to handle the base part...and your idea with the plexiglass is a great idea. I think I am going to give it a try and see how it works. It's going to be for portable operations, so I am thinking of using some small fiberglass crappie fishing rods and the entire radiating part of the antenna will just be wire. Thanks for the idea!
Hey 151, well done again on your experimental "delta loop" antenna !!! You should change the "mower junkie" to "Mr. Antenna"......... Glad to see this posting and know that all is well with you and the family. Take care my friend, 73,,,,, 770-RI.................
Thanks 770, I can't wait to hear you in my radio again. Take care, 73's from Mr. Antenna 151
Hey. John just want to let you know I built one of these after watching the video anyway been testing it today up 8ft and worked Portland Oregon on 3 watts “ssb” From Kansas with the delta loop!! Thanks for the info !
73 from 892 Kansas!!
Many years ago, I had a 2element delta loop on 27mhz. Bandwidth was over 5mhz under 2:1 SWR. You just need a little height for them, they work best if you can get them about 25-30 foot up.
Hi john very good delta loop congratulations
Congratulations for a good video. I have one with 3 elements and they are super good for a complete wave.Goooood job.😅
The worst thing about building antennas is finding out that they work better than expected, thats when you have to start another build. Now, when you building the mighty "Rhombic" antenna 151???
Great job Mower junkie, UDX 4570 Palm Springs said it!!!!👋🤠
it's an addiction I'm happy to have........My next antenna is already in the works.
Pretty cool antenna. Seems pretty broad banded too! Good job!
Thanks, and I appreciate you letting me borrow your analyzer, it was a big help.
Looks great I did a very similar type with two fiberglass fishing poles at 4mts each side and 36ft of washing line with the wire inside .. same as you a 75ohm coax as a balum but wound it around a 4-1/4” former then to 50ohm coax works a treat
Pretty awesome. I always enjoy your antenna videos!
Thank you very much! 73's
kool
This is very cool! Plans to build a 2 element one myself! Awesome job! 73
Very neat and stealthy .. excellent job .. v nice wiring,
Well I think you have done a fine job and I'm happy that you like to experiment with antennas. 73
Cheers John always good to see your vids 73 ,s mate
Made the antenna to your exact measurements and the antenna SWR was under 1.6 over 26 to 29 mhz... fantastic
Awesome!
Congratulations on your 3/4 wave delta
Love it John! so creative! Antenna Junkie! 73's! ( By the way I ordered a Silver Rod. I hope to be 10-8 this weekend!)
That's awesome! Enjoy the hobby, 73's
@@MowerJunkie Thanks! I'm looking forward to it!
Cool antenna! Been thinking of building something similar for 6 meters
I've got a two element that's been on the ground next to the shed for 15 years. I'll have to see if it's any good. thanks for sharing
Great build. I'll be interested to see what you think of the performance.
Hello 151,Love that Delta Loop.
Hope to QSO again soon and give you a signal report from London UK on that D.L 73.s
Thanks, That would be awesome! 73's
Hi John. Great job as always with this delta loop. I really hope I can speak to you again. I've been speaking to Paul 063 a load of times. And always hope I can hear you . Take care my friend. Good dx. WR456🇬🇧.
I've been really busy lately, and haven't been on the radio a lot.....But I'm hoping that will change soon. I'll be listening for you 456. Take care, 73's from 151 SC.
@@MowerJunkie hi I just installed a Maco 5/8 I'm in Pennsylvania I was wondering if I could reach you on my radio running a Galaxy DX 94hp next time your shooting skip shoot me a message on here and I'll see if I can't reach you my name is Richard
Pretty cool construction. Makes me wonder if you could construct the same Delta loop with a Di-Pole. Could be be useful when it come to space limitations.
Hey #MowerJunkie 151, 55 Buckeye State here. Been listening for you on 38lsb . 73s
Awsome John....💯🎸🎙👍
Looks like a good antenna to make contact with aliens.
lol, if I hear any I'll let you know.
it's ironic that I came across this video today after I put together a 3 ele Delta loop a few hours ago. Mine is still on the ground waiting for better weather to try it on the roof. 14' boom and I'll probably keep it horizontal as you have done. A few years back I ran stacked delta loops(4 of them) and they were great for 10/11 meters. Good luck chasing the dx.
Awesome build. Black tape becomes invisible when things work as planned.
lol, Thanks for watching, 73's
Very cool Mr. Mower😎
That’s amazing.
In at 499 with the 👍 and about a month late but I do love me some 151 Level Antenner Building. I think it's time for you to sponsor an in your yard hands on Antenna Building Seminar. Plenty of room for Tents and a Low Country Boil as I don't think anything I build is gonna hit your receive from the Western Slope Lands End Colorado. 😁
You have my attention so I have joined in the fun. So hi 👋
Awesome! Thank You so much
Remember also CMC can affect your readings. You really need to start incorporating baluns, or a least a decent ferrite choke for feeding all of these balanced antennas (you're feeding them direct with an unbalanced line, coax).
Very good antenna , tanks Oliver 14 Echo Lima 14 From Marolles Normandy !
I built a similar delta loop. It was good for short skip. I used 6' of RG-11 coax I bought from DX Engineering. I used the formula
1005÷frequency in MHz.
Another interesting antenna project. MJ. Have you considered the Demi-Quad, which also uses RG-59 matching/Network. Vertical or Horizontal/Polarization, depending on feed-point location.
Which could then transition into a 2-element/Quad that can be directly fed with 50-ohm coax. The single demi has a 2 Dbd gain and the two element-quad has a 7 Dbd gain.
Still call out for you on 385 and your test freq, but no luck. Talked with 1963 Jamaica a few more times 73/88 DX21
I have considered building a quad antenna, and I do have plans for one in the future. Thanks for watching, 73's
Looks like prototype for the Maco V quad almost exact specs they use fiberglass tubes for spreaders and basically feed wire thru the pipes and spread to the other side and back down using gamma match instead of 7' 59 tv cable to match i made a box version decades ago out of old bamboo poles used to hold carpet ( dates me a little huh) it talked well audio on side and signal on front strange as heck
I'll bet the receive is nice and quiet (free of electrical and man-made noise)
Yup! it's a very quiet antenna with great receive.
Cool antenna
You forgot to tell us what size are the tires supporting the antenna....also, are they all weather? Just kidding 😄 Nice to see you back in action John. I was wondering what are you up to... and you did it!!! beautiful antenna. 73's, Nek, 63 Toronto..!!!
Nice setup UDX-151.......
Looks alot better than antron
Sweet deal! Nice build!
Brother I love your go get ‘‘em attitude.that thing will do amazing DX ing . I built one years back. I think you will be amazed at the outcome I’ve got several of the old antenna books from the ARRL American radio relay League Love them I’m glad to see someone else making use of there brain thanks John for your interest in antennas. Cool huh. Mower junkie should be antenna junkie love it brother. KC9LRA. Bob. Sand man. 94.
@@robertharden4092 Thanks Bob, 73's
Fed at the bottom provides horizontal polarization. Feeding at a side provides vertical. Optional substitute parts: Fishing Rod Blanks or PVC with the wire inside of them. This antenna will work very well 1 foot above ground. Of course, 15 feet is better.
That's amazing
I might have to make one of these for 10m..need somthing from 28 to 29mhz
Love it thanks for letting me know cheers CT4870 thanks 👍🇬🇧
Awesome wow brilliant job my friend 73
Thank you so much, 73's
@@MowerJunkie your very welcome my friend 73
That is awesome I was gonna try to build one of those but I thought they use string for the top but you use wire I never thought about that so I’m glad I didn’t try to make it yet anyway I was wondering could you use 102 stainless whip used two of them the same way but you probably have to use some kind of a at the tip on top some Chyna spacer for the wire not touch the tips of them I don’t know if there a way to put 102 to stainless whip could that be done well I guess be the same way that one you made but that was the two ground plates on it with two stainless 102 stainless then you had to ground lines each side of it but I’m just talking about the one you built now if we could do it the same way with the two stainless whips could it could be done what it be like
Sorry Shep, this antenna can Not be made out of 102 whips, They're to short.
73's, Thanks for watching.
This is Mamacat that is a huge antenna
You might talk to 1963 on that antenna let me know it would be cool see a video on youtube.
Amazing
Just to ask out of every antenna you've built or own which one do you feel is the best range local and DX and great receive I've kinda thought about either the most common Antron 99 or possibly the Maco V58.
My favorite of all my antennas is My Homemade 2 element Yagi on the flat side. It works really well for DX, and most of my locals are also on flat side.
The Antron 99 is a good antenna, and very easy to setup....But the Maco V58 is a better antenna.
Thanks for watching, Take care.
I would like to see all of your math. Not sure what the polarity is. Did you use this just for side band ?
Hi John, since you are the man making all kind of antennas, how about rectangular (11 meters full wave) or Hentenna? I hear good things about these antennas but don't have space to make it happen. From my research, they do well and much better than ones we know; 1/2, 5/8, 3/4 waves. Just giving my opinion to the handyman!
I was just looking at a 3 element Hentenna......and I am intrigued. it would make a cool future project.
Thanks, 73's
What wire size wire would you recommend for using 500 watts on this setup. I am going to build 1. I have everything on order now. Thx again for the video
I used #12 stranded wire and it handled 500 watts easily. Thanks for watching, Enjoy your new antenna.
How much gain does this have over a halfwave for example? Sounds like an easy antenna to build.
I figure you could add a 7 ohm resistor o get the 50 ohm needed, but that may affect your swr and have to make that adjustment. I'm not 100%, but it sounds reasonable in my mind.
Is it really directional, so close to the ground?
could this be done just using copper wire?
Very cool! Thank you for sharing. VT802 73
Thanks for watching, 73's
Is the velocity factor of the 75 ohm coax 0.83?
If so, at a freq of 27.385, the calculator shows 7.4528 feet which translates to 7' 5-7/16".
Plus, I would assume the measured length would be from where the coax shield and insulated center conductor diverge.
So your 1/4 wave stub might be a little short, depending on where you measure from.
BTW, I'm just a dumb old bricklayer; know nothing about electronics.
Love your channel.
the velocity factor on the coax I used is .82 my math came out to 7.366' for the 75 ohm coax. Thanks for watching, Take care.
i wish i can find a metter for a Uniden washington base radio
can you make a vid on how you built that antenna tilt test stand, i would love to make one like that
I made a video of it when I built it. ua-cam.com/video/pLHApmOQbno/v-deo.html
Would pool brush pipe will work?
Probably, but I think it would have trouble supporting it self in a strong wind.
Will a 2:1 Balum work on that instead if the 75 ohm wire?
Yes, you can use a Balun instead of the 75 ohm coax.
So .... what about that further testing?
nice, put a 9 to 1 on there and you will not need the stub. I love loops.
Curious to know how it does with distance and working with skip.
Locally it's doing as good as My Yagi beam, and I talked to a couple of stations 2500 miles away with only 16 watts.
I'd call that "very good". Nice work.
Good delta loop pretty wide band. May I how long was the stranded wire connected to each element and was the copper wire in contact with the aluminum?
Sorry, I don't remember the length of the wire, But I think it's in the video.
Bolehkah saya meminta ukuran antena delta loop untuk bekerja di 27 mhz
Is a delta loop considered vertical or horizontal polarized?
this one is horizontal, But it can be setup as a vertical too. Thanks for watching, 73's
It would be nice to if you make 6 element I think it could be done
As medidas dela
What is channel 94 on the CB band? CB has sure changed since the 60's.
I thought there were only 40 channels. 23 when I first started. 16 WATTS?? I am really confused!
I have a Maco V quad. Can I build a delta loop out of it? I cant get a decent swr on the V quad. Also can I use the Gamma match from the V quad on the Delta loop. Please try to respond.
I'm not sure I understand you, Because the V-Quad is a Delta loop antenna. double check all your measurements to insure they are all correct. if it's put together correctly you should have an SWR below 1.5. then fine tune it with the Gamma match.
@@MowerJunkie Thanks for the reply. I think my problem is that the V quad is way too close to my 5/8 verticle. As I turn the driven element of the beam away from the verticle, the swr goes flat. Looks like I'm going to have to move the verticle. Thanks. I scribed and liked.
Is this a directional antenna ?? Looks cool !!
Yes, it sends the signal in 2 directions. Thanks for watching, Take care.
Mr Mower Junkie, you should bore them with some of the details. It's always best to explain why you do something when teaching anything. At least that it's a quarter wave stub, a coaxial transformer, the same principle use for phasing. A few things I want to mention: I take it that's RG6. It's mass produced like no other coax. I also assume you used around 80% VF for your calculations. Now, yes you can question the quality of the coax, however I would be mainly concerned with the velocity factor. The consistency, reliability, QC. Although you did say you have an analyser, maybe you trimmed the length with that. Anyway, I would be inclined to use a military spec coax like a good RG59, with 95% shielding. Of course this will have a 66% VF. The other thing, we estimate the loop to be around 100 ohms in this case, but to see a 50 ohm input impedance with a 75 ohm stub, the loop would have to be around 113 ohms. If your stub is cut to a 1/4 wavelength, as per VF with 43 ohms at the radio end, this would mean your antenna has an impedance of around 130 ohms.
Let me start out by saying, I don't do these videos to teach people, I do the videos just to show what I'm up to. But I'm always happy to help others with their antenna projects.
Thanks for watching, 73's from 151 SC.
@@MowerJunkie no worries, fair enough. Hey I've gotta pull my finger out and get my 4 element LFA back up. Then maybe I could make contact with you one day, I'm in Victoria, Australia. I've built a lot of antennas in my time (not a ham), the LFA is by far the best. One more thing worth mentioning, remember you can feed a delta loop at several different points and orientation. This changes polarisation and angle of radiation. I believe one of the top corners in that configuration is good for low angle. 535 Jeremy.
Is this antenna directional?
got to make 1
is it directional or OMNI ?
Oh another thing that short piece a real thin coax you said do used was a 7’4” why do you fuse the coax made like a choke 8 or 9 times with that Wrapped around a 4 inch pipe strap to would that make a difference it’s like a choke will get the ohms back down because I watch a lot of him operators using a choke for ohms
the 75 ohm coax does not need to be wound for this antenna, and mine is a temporary setup, so I just ran the coax down the mast. Take care Shep, Happy Easter.
@@MowerJunkie you to happy Easter 🐣 73
Channel 94 ?
Make your top wire 8" longer, should drop swr down to zip on 38
Might want to try a wound toroid balun rather than the matching stub.
this antenna was just an experiment to see if I liked a Delta loop. This past weekend I put together a Maco VQ3, 3 element Delta loop antenna with a Gamma match, So far I'm loving it!
@@MowerJunkie I loved the design, I'm a ham myself, but I still get on CB too. Have an old Midland 40 channel on top of my Kenwood TS-2000 amateur rig. I need to upgrade my CB radio to one with SSB though.
CB was my first introduction to radio as a kid, so it still has a special place in my heart.
I do a lot of experimentation myself. I currently have a whip for CB and an Inverted L for 160-10 meters, Comet GP95 for 2 meters, 440 MHz and 1.2 Ghz. I run a Kenwood TS2000 for the amateur bands, its a ham shack in a box, cover 160 meters-1.2 Ghz minus the 60 meter band. I'm setting up a satellite antenna array, I really want to make a contact with the ISS. I've tried using my handheld radio and yagi antenna, but the guys running 100 watts over power my 5 watts.
Have fun on the air MIke//W8MLD.
Got a Chevy truck collection going on over there? 🙂
Yup, temporary storage for a friend. Take care Joe, 73's
@@MowerJunkie Hey let me ask you a Jeep Cherokee question. Does your Cherokee's rear hatch latch have a screw that comes loose but doesn't fall out, or tighten back up?
@@JoeR203 I have the old style with the push button, it does not have any visible screws.
@@JoeR203 it's probably an internal nut that is spinning in place
@@MowerJunkie Just to clarify. I'm talking about the part on the bottom of the hatch that clamps onto the ring/hoop/hook to secure the hatch closed.
the way you have it there is it for vertical?
this antenna is set up for horizontal polarization. Thanks for watching, 73's
@@MowerJunkie ok thx Brother
nice antenna a small router would make it perfect
I know it, I've already been thinking of adding a rotor. Thanks for watching, 73's
@@MowerJunkie 12 Volt wiper motor.
👋
Instead of using 70 ohm coax could u just use 50 ohm coax right threw thanks
it has to have either a 4-1 Balun, or the tuned piece of 75 ohm coax. They lower the resistance, making it safe to transmit on.
What length in metres do i need the 75 ohm coax to be thanks
it's been a long time since I built it, and I don't remember the length. But I'm pretty sure it's in the video.
Thanks i just realised i have a Foxtel dish on my roof that has 75 ohm coax on it so i can just take the coax from that