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Marc in Metcalfe
Registrace 26. 05. 2014
Tilting HAM Radio Antenna Tower Part 3 - Rigging-Operation-Cable Entrance and Grounding
This video shows the tilting tower in real time operation with rigging details as well as the cable entrance and grounding.
zhlédnutí: 43 919
Video
Tilting HAM Radio Antenna Tower Part 2 The Base
zhlédnutí 22KPřed 4 lety
Here is a more detailed view of the tower base construction. Additional videos will follow.
Tilting HAM Radio Antenna Tower - Part 1
zhlédnutí 53KPřed 5 lety
Tilting HAM radio antenna tower. A brief video describing the overall construction of a tilting 56' HAM radio antenna tower that I built. The tip of the Comet GP6 is at 80'. A Cushcraft 13B2 is at approximately 70', a Cuscfart A50-5S is at 65" (not shown in this video), a Hygain Explorer 14 (with 40m) at 60', and an Alpha Delta DXA at 55'.
Tilting Antenna Tower
zhlédnutí 11KPřed 6 lety
This is a video of my HAM radio tilt base tower being lifted and lowered. The base is custom designed by myself and uses a falling derek and 10,000 lb winch for lifting and lowering.
Antenna Installation Diamond X50
zhlédnutí 10KPřed 7 lety
Installing a Diamond X50 VHF antenna on a small tower.
Porsche 935 at Calabogie Motorsports Park
zhlédnutí 244Před 7 lety
Two laps of me driving my Porsche 935 at Calabogie Motorsports Park in 2009. This is a 935K3 replica that I built from an original 1976 911 coupe shell. It has a 3.3 L engine with twin turbochargers (GT3071R's). It handles like a dream and is an absolute blast to drive.
❤ excelente trabajo!!!😎👍❤️❤️
That looked more like a hornets nest
great vid. W O W
My tower czcams.com/video/mw8b_vsyXyE/video.htmlsi=lVodX5AfrRIfV-sD
Wow 👌🏻
Thats quite a project. My hats off to you.
I know it’s been a while but……the falling tower anchor could be anchored with a deadman
Very nice.
fantastic, 73 de PY7DJ
Hi Marc, I am building a 64ft tilt over with a DMX, your video is quite helpful. How did you come up with 12,000 winch? Is the 4" falling derrick thick enough? There appears to be a bit of a wow in it, perhaps its the video angle. How much does your tractor weigh? Thanks
Thanks for your positive comments. I calculated what the forces were throughout the system. I purchased this particular winch because it was on sale (lol) and because it was well within my lifting force requirements. No "wow" in the falling derrick but you should be aligned dead on centre with your cable as shown in my videos. Please make certain that you understand what I did at the 4:50 mark in the video. The forces transfer through the derrick by the use of a through fastener and NOT the metal thickness of the derrick. Also note the lateral guy-wires on the derrick. My tractor is a BX25. Note that during the lift and lowering sequence, the forces acting at the centre point of the bucket are not acting purely against the weight of the tractor, hence the extensive strapping to nearby trees (see part 3 of my series). Good luck.
@@marcinmetcalfe595 Great job, what is the length of your falling derrick & how did you calculate the winch requirement? I would have thought 6000 lbs would have been plenty....I'm thinking of cost. I'm the same as you, I don't want to be going up & down my 64ft tower at my age. You did an amazing job btw, very pro....
@@xavierkost9264 Thanks for your comments. The falling derrick is 16’ long. Good luck with your project.
You might not be ‘professional’ but you are an expert.
So this is what jealousy feels like. 🥺
Great video!!! Beautiful country!!! KD2QMJ
What I want to know is how did you keep the antenna flat and level while tilting. Seems to me it would spin around in anything not secured.
If you look at part 1 closely you’ll see how the hinge for the beam works. The connection to the rotor stops it from rotating.
How do you calculate how much load is on the raising cable?
Well that’s the key. Best to hire a qualified person to figure that out based on your particular tower and loading. All the best.
@@marcinmetcalfe595 did you just overkill on your setup?
@@theboogeyman826 No. Fortunately I’m a qualified professional engineer. I was able to get all the calculations done for free. 😁
@@marcinmetcalfe595 believe it or not I havent been able to get any help on this matter. Maybe Enginners are not what I thought. I figured any structural engineer could figure this out for me.
Fine business Sir. I am presently constructing a 50ft tower using the Rohns plans for a 45G tower on a tilt plate.. 11and a quarter inch , equilateral triangle.. The cost to order from Rohns , and ship to Thailand was ridiculous.. around 5000 Dollars.. Local build. with improvements 550 USD. No Brainer..Home brew Rocks..
hello, thanks for this vidéo, very nice work 👍
Glad you enjoyed it. Happy holidays.
@marcinmetcalfe595 your video is very informative for me because I have a small tower (10m) that I want to make tiltable, happy holidays to .
ف١اااااك مارك 😂😂😂ههههههههااي
Amazing
Nice job!
@marcinmetcalfe595, thanks for this video. It gave a bunch of good info and inspiration for our tilt up project that finally got set in place yesterday. 73!
Wow Marc that is an incredible system ! VE3RRB
Wow, you’re living in paradise. Very nice setup you have there. Did you remove the wasps nest or did you forgive them for liking your antenna tower more than you do and leave them be?
Thanks for your interest. Yes I feel very fortunate to live here. It was not active when it was in the video so I removed it. I get lots of different kinds of nests around here.
Where did you purchase the pulleys? Amazing video. This is inspiring me to convert our 48 foot tower to be a tilting one...
Marc - this is really "heavy metal"! Compliments for your job.....very well done.....perfekt made!
Great design
🎉👌👍
Very nice. Did you add drain holes to the base plate?
Nice Work
Thanks.
Great video and thank you for sharing. Im doing a similar project this year but I have opted for a tilt/telescopic mast that i will need to build from scratch as they dont have them in the Philippines.
Marc I know I commented previously about this being the best video series out there for this application. Well by watching this series several times and consulting with a friend who is much better at math than I. I'm happy to report in late October last year we got my 60 foot tower with a 10 foot mast on top up and working. It has withstood some 90 km winds and a couple of winter blizzards so far without issue. Not worried about summer as the trees will fill in and create a wind break for most of the tower. Can not thank you enough for taking the time to do these videos.
That is a work of art
What an amazing project. This is the nicest tilting tower I’ve seen. I wish I could buy a kit with all the parts for it. Great job.
Thanks for the kind words. I am glad that you enjoyed the video. I also agree that a quality tilting tower kit would be great (I would have bought one), but I already spent the past 30 years running a small engineering business and I am not that interested in starting another one. lol . Take care. Marc VE3BOE
@@marcinmetcalfe595 By chance do you have a set of plans you would be will to sell for this set up. In the next few years I will be building a shop in some property. I would love to build your same set up. I am a carpenter so much I can do except for the welding I would have to hire out. Including the tilting beam antenna with the other antennas you use. In my opinion this is really the ideal set up. I also like the clear to sprayed on the aluminum. Can you tell me what product you used? Where did you buy the tower?
I don’t have any plans. Most of the construction details etc., can be seen in the videos and found in replies to comments found in the three video series. The clear paint is Rustoleum clear. Good luck with your project.
Bello!!!un bel lavoro!
Grazie.
how did you get the pieces to reinforce the bottom of the tower? also, is it a necessary component?
Those reinforcement pieces are actually the base stubs that you connect to the bottom of the tower and they go into the concrete base. Instead of installing them from the base down and installed them from the base up to reinforce that bottom tower section as it is subjected to some greater loads. I’m really not able to comment on whether or not it’s absolutely necessary. I put them in for good measure since they came with the tower kit. I think it is a good idea to do it.
@@marcinmetcalfe595 ah ok, I ask because I bought mine second hand and don't have them
One little tip on the little tractor (I have one just like it)... Extend that backhoe bucket as far out as possible for some counter weight, and poke the teeth into the ground for some more holding. It's sometimes just enough to make all the difference in preventing the tractor from moving.
Well sir, I know these videos have been up for a while now but I have recently found them, and they are amazing! I have a similar tower just recently acquired, and I hope to build something very similar. Hope you don't mind if I play off many of your great ideas. As far as the base plate assembly goes, are there with the help of hindsight, any major changes you would make? Looks fantastic from where I sit. Hope all is well, 73 from New Mexico
Thanks for your positive comments. I hope the videos provide you with some ideas for your project. I don’t think I would change a thing with the base plate. I have been tilting the tower down at least once or twice a year for antenna changes and review of how things are doing. It has worked flawlessly for me so far. I think that I may build a more permanent anchor point for the falling derrick so that I don’t have to use my Kubota and deal with the more complicated rigging setup. Good luck on your project. 73 from Metcalfe Ontario Canada.
How do you figure the load on raising cable?
Well that is the key. Most second year engineering students should be able to figure that out after taking their Statics course.
@@marcinmetcalfe595 I think I need somewhat of idea for mine to know how strong a cable to use. I was wondering what others do.
what is the thickness of sheet metal used for hinges? and the diameter of screw used for mil?
Everything is made of 1/4” thick steel 4” x 4” angle iron. I think the hinge bolts are 3/4” .
Hard to tell in the video, but it looks like the cables from your "falling derrick" are not at equal tension when under load (the cables attached to the tower). Should not all of them be of equal tension when pulling?
What a beautiful piece of engineering ! Thoughtfully engineered and executed. A huge credit to you my friend. Cheers from OZ 🇦🇺
Amazing set up 73s
Might some weights hanging (at an appropriate length) on another wire off the guy wire(s) opposite the gin pole make a balance so the tower doesn't slam down and wobble so badly. Others do this and have even made a perfectly balanced tower pivot using the counterwight to offset the weight of the ginpole, etc. They literally hand lower it into its final resting place an inch at a time. This also eliminates the need for a solid brace between the tower and the ginpole. See czcams.com/video/i1apgY3Gw5U/video.html
Super job
Excellent videos on the construction and operation of your tower. I watched all 4 videos. I would like to have something like built but on smaller scale maybe 40 foot. One can dream can't they!!! What is the music on this video of the raising and lowering of the tower? 73's from KD4NSU
Thanks for watching William. I think the basic design of my tilting tower would scale down very well. Send me some pictures if you ever build it. I would be very interested. The music on all my videos are my own compositions. The one raising the tower is called “Lost Memories”. It was written in 2014. Take care. 73’s from VE3BOE
great video - thanks for sharing
Thanks for watching!
Very professional job. I am amazed in your attention to detail. I see is previous comments that the mast is a 20' aluminum one. Can you tell me the ID and wall thickness? I am planning a mast location of similar length and antenna array. Also, what was the length of the falling derrick in relation to your mast height? It seemed to work very well. 73's K5OOL
Thanks for your nice comments Chris. My falling derrick is 16 feet in length. I am looking into my records for the exact spec on the mast. I remember being very specific about that and I had to have it special ordered by my local shop. I will repost when I find it.
The Aluminum mast has a wall thickness of 1/4 inch and an outer diameter of 2 inches.
Great build , maybe a couple of holes drilled through the base to allow the water to escape , great workmanship .
There are a few holes. With all the other technical aspects of the design, that was the least of my worries. lol. Thanks for watching.
great video thanks
Glad you enjoyed it
Glad you enjoyed it
Brilliant setup. Could a guy use hydraulic rams to raise and lower the tower rather than the cable set up you have? Regarding the Tremclad Clear, did you brush or spray the tower. It’s so clean and new looking. I ask as I’m just getting into the hobby and looking for a used tower to purchase. There a few around for sale close by me heights being 40’, 56’ and 96 feet. My concern is I don’t know if they are capable of being strong enough to handle the action of lowering and raising with out buckling or snapping at the pulling/lowering point, is you’re tower built from a heavier grade of steel so as not have that happen. Thanks 73
I would guess that there are many other methods to raise and lower a tower like this. It is simply a matter of knowing how to design and implement them properly and safely. I can't speak tp the suitability of other towers. The tower I am using was not intended to be used in this manner by the manufacturer. The lower segment of the tower in my project is reinforced. This is stated in my part 1 video.