Ham Radio HF Antenna 90 Degree Warning

  Рет қаралды 8,033

watersstanton

watersstanton

Жыл бұрын

If you are planning to install an HF antenna, you may have heard or read about the warning that you should avoid acute angles of less than 90 Degrees. Is it right or wrong advice?

Пікірлер: 90
@G0USL
@G0USL Жыл бұрын
There are more myths and legends about antennas than there are about King Arthur!
@forgetyourlife
@forgetyourlife Жыл бұрын
Yep, and some are right here on this channel.
@PopeyeKF4LBG
@PopeyeKF4LBG 7 ай бұрын
This comment is legend as well !!!! Im rolling! Thanks for the grin!
@norbertstepien9185
@norbertstepien9185 Жыл бұрын
Unfortunately what you describe is exactly what is happening throughout social media. KZfaqrs who are in the hobby for 5 minutes band together and proclaim themselves experts and spout a lot of nonsense. This goes far beyond ham radio, but that's another story. I am very selective in who I watch on KZfaq and thank you to people such as yourself with immense experience who consistently provide accurate information.
@watersstanton
@watersstanton Жыл бұрын
Many thanks Norbert, I do my best!
@ohaya1
@ohaya1 Жыл бұрын
Great video Peter! It's all about experimenting. I've made contacts with Japan and US stations on 10m FT8 from my block of flats in east London by taking my dipole out on my relatively small balcony. I had to bend it in all sorts of ways to get my vswr down. The final configuration was crooked, did not expect it to work based on what I've learnt in my Foundation course, but it did. Using modest test equipment such as a NanoVNA does help. 73, M7BAL.
@Wyowanderer
@Wyowanderer Жыл бұрын
Yup. When I was first licensed, I worried about getting every antenna "perfect" because several senior club members told me it had to be so and when I asked for assistance, they referred me to the ARRL antenna book - a lot of info to wade through. Instead, I started to try things, with the help of a GDO and an antenna analyzer (Comet) and I've had GREAT success getting on the air. Not everything has to be "by the book" to work well.
@Littlelewie151
@Littlelewie151 11 ай бұрын
I enjoy the language barrier myself! Your politeness and encouragement to work through problems is very enjoyable!
@watersstanton
@watersstanton 11 ай бұрын
Many thanks.
@joelaut12
@joelaut12 Жыл бұрын
Thanks Peter for another succinct explanation of antenna theory in ‘laymans’ terms. A big thank you for the kind words of friendship between our countries!
@watersstanton
@watersstanton Жыл бұрын
Hi Joe, you are very welcome. 73 Peter
@paulwilliams286
@paulwilliams286 Жыл бұрын
Dear Sir, You are so sweet to make mention of your audience from across the pond! I myself live in the state of Illinois in the U.S.A. and I very much enjoy your videos. By the way, I I see no language barrier what so ever! I do enjoy the English accent however and, I'm sure you hear an accent when listening ttha Americans and Canadians. It's all good, I love it! I do watch/ listen to video and podcast from the U.K., Canada, Russia and others as well as from the U. S.. So much interesting content from around the world from highly technological countries and knowledgeable people like yourself. Please keep up the great work and I'll be watching! ...73's!
@watersstanton
@watersstanton Жыл бұрын
Hi Paul, lovely to read your comments. i have visited the USA many times, and always enjoy my visits. 73 Peter.
@sophoklesgreek3237
@sophoklesgreek3237 Жыл бұрын
an antenna is always a compromise .. it is never perfect, .. and the best one, is the one you have. and never ever believe that something does not work because anyone told you so. test it for yourself .. so thx for this video :)
@smfridley2460
@smfridley2460 Жыл бұрын
Words of wisdom Peter! So many ham operators get hung up on achieving a “modeled” design, ie; a perfect antenna. But we all know that none of us live in a perfect world. I’ve worked the world with so many imperfect antennas that I’ve lost count.
@vinnyboywo6571
@vinnyboywo6571 Жыл бұрын
Thank you for dispelling this myth. I've experimented with plenty of wire antennas having acute angles and they can work just fine. In fact, in certain circumstances, they can be quite beneficial. Great video!
@theroguetomato5362
@theroguetomato5362 Жыл бұрын
I have what I call a Perverted V antenna. It's an inverted V hanging from about 20 feet on a flag pole in the corner of the yard. The two legs are at 90 degrees, and one leg bends 90 degrees again so that it's parallel to the other leg for about 15 feet. I imagine the radiation pattern looks a Jackson Pollock painting, and I don't get good signal reports, but it works better than anything else I've tried given my garden space.
@PopeyeKF4LBG
@PopeyeKF4LBG 7 ай бұрын
Wow! This video made my day! I just cut my 80--10 to a 40-10 because of the dreaded 45 degree infection! I will now break out my soldering iron and defiantly solder it back together in protest of convention! Down with conventional "mumbo jumbo" and up with the wire, I say! ;) Thank you for the wonderfully delightful wisdom! 73' de KF4LBG...
@watersstanton
@watersstanton 7 ай бұрын
Well a cubical quad has four 90 degree bends and works!
@KU9L
@KU9L 11 ай бұрын
Thank you Peter for all your antenna advice and helping make this hobby exciting to be an Amateur Radio Operator again. I have been a Ham for 44 years, but due to Family & Career obligations I fell away from it. I loved CW & am glad to see it is more popular than ever, plus POTA has added an element previously only used once or twice per year. POTA, QRP, es HB antenna designs, oh where have you been all my life? It was always there for the most part, but sometimes mixing up the elements gives new excitement! Cheers es 73, Davey - KU9L
@alannorthdevonuk763
@alannorthdevonuk763 Жыл бұрын
Thank you. I was advised to avoid a 90-degree bend in antennas by an old and knowledgeable club member. No explanation was given unfortunately and I always thought it had something to do with equal and opposite energy but as it never seemed relevant I never pursued it further. I'll try to delete it from my mind now.
@slosolo2
@slosolo2 Жыл бұрын
Wish I had known about Waters & Stanton when I was making regular trips to England. I would have paid you a visit. Thanks for sharing your experience.
@watersstanton
@watersstanton Жыл бұрын
Many thanks.
@bobr6555
@bobr6555 Жыл бұрын
Haha, delta loops have acute angles!
@jeffreyyoung4104
@jeffreyyoung4104 Жыл бұрын
Keep up the great advise! A few years ago, when I was chasing my WAS, I had two wire antennas, one for 160 meters, and the other for 80 meters, where the wire had a couple of bends more than 90 degrees due to the area I had to put them into! Had I been 'educated' on the problem of the bends more than 90 degrees, I might have done better on those two bands!!! ;) But, I must have gotten lucky, as I made many contacts, and I finally got my WAS award! Yea me!! I have also stopped listening to 'experts' spouting nonsense about how I am doing the wrong thing with my antennas. As the antennas work very well, even if I have to compromise the design to get it to fit a space.
@davem0udb
@davem0udb Жыл бұрын
My EFHW in my small garden is bent at an acute angle at one end, it works rather well. I don’t have the real estate to find out if it could work any better🤷‍♂️. another entertaining video Peter
@watersstanton
@watersstanton Жыл бұрын
Thanks Dave.
@alangoulding4252
@alangoulding4252 Жыл бұрын
Brilliant video yet again Peter, I have been experimenting as of late with my home brew 49.1 balun and there's no angle I haven't yet tried with the wire...and it still behaves as it should..73s till the next time...Alan G7WBB
@alandrury9955
@alandrury9955 Жыл бұрын
It's amazing what will work if you just try it. Years ago I was desperate to put up an 80 metre dipole at my parent's house. I ran it from the washing pole at the far back, chucked it over the roof ridge and brought it down at a steep angle to the fence in the much smaller front garden. To my dismay I had about four metres left over so I wound it onto a plastic bottle and nailed it to the gate post. The thing worked great!
@OLDMANGAMING1970
@OLDMANGAMING1970 Жыл бұрын
This man is a absolute master and a blessing to use all.
@danjor_droneitsme6874
@danjor_droneitsme6874 Жыл бұрын
Really enjoy your education and humour Petter please keep it up and a big 👍 about the antenna bending,totally agree
@watersstanton
@watersstanton Жыл бұрын
Many thanks.
@g0fvt
@g0fvt Жыл бұрын
Sage advice Peter, I used to have an inverted V up for 40m. The apex was at about 10m, it worked extremely well, but from just around the corner from our house I could see how narrow that angle at the top was. Probably about 60 degrees, certainly well short of 90. Sadly there are many cases where people are put off from trying, if we lose a few dB from cancellation here and there we are still on the air. 73
@watersstanton
@watersstanton Жыл бұрын
Many thanks.
@brian.7966
@brian.7966 Жыл бұрын
I am going to put you up for a RADA award, your acting skills are great. well done Peter as usual.
@watersstanton
@watersstanton Жыл бұрын
Hi Brian, I think I am too old for a change of career!
@smfridley2460
@smfridley2460 Жыл бұрын
Thanks Peter for clearing up so much nonsense about antennas!
@billythebootlegger.4376
@billythebootlegger.4376 Жыл бұрын
Now that made me laugh Pete 😂 When I give antenna talks at the local club, I concentrate on fitting in multi band (and by that I mean 160 - 6m) antennas in to postage stamp size gardens. My own garden is only 27 x 30 feet and my antenna is as bent as a 9 bob note ! But it works very well, as the logbook shows. False info is a bummer, but difficult to avoid. Best solution is to experiment and draw your own conclusions.....
@donz7992
@donz7992 Жыл бұрын
My first HF antenna was a U-shaped 40M dipole run around my garage ceiling 11' off the ground. Obviously not ideal but to get me on the air in January in Minnesota, it worked just fine.
@phils2180
@phils2180 Жыл бұрын
Nice to see a video giving actual facts from someone who's been there and done it many times!👍 There's so much "click bait rubbish" on the net these days it's easy to get mislead. Experimenting with antennas is one of the joys of Amateur Radio IMO. Conventional antenna or unconventional, location and the dreaded "urban noise" can play a huge part in performance. I'll wager there's more 90+ deg bent antennas in back gardens around the country than text book perfect ones, all giving great results for their users!👍😀
@maikerumine
@maikerumine Жыл бұрын
Great information there!! Thank you, Peter!!
@dennisbauer3315
@dennisbauer3315 Жыл бұрын
Thanks Peter, it did not worry L.D.Cebik W4RNL (SK) rest his wonderful soul. I build his Z center fed dipole on an angle, much less than 90 degrees. Not a problem. Also, I had EFHW at very odd angles, not a problem, And in Australian North, not too many hams every few kilometers, as Europe and UK No worries on DX either, always good reports, never use over 50 watts, unless conditions are very poor. Thank goodness you are bringing this up, I thought there must be something wrong with me, Hi Hi.
@watersstanton
@watersstanton Жыл бұрын
Hi Dennis, many thanks.
@nickaxe771
@nickaxe771 Жыл бұрын
My doublet has quite sharp bends to fit its 57mt length in to my 30mt long garden....way less than 90degs.....with end legs dropping down vertically as well. Works great.....
@n0vty873
@n0vty873 Жыл бұрын
I put up z shaped 160m dipole, it worked perfectly!
@donalfinn4205
@donalfinn4205 Жыл бұрын
Thanks for another interesting vid.☘️🇨🇮
@SimonWilton
@SimonWilton Жыл бұрын
I have a ninety degree drop at far end of a 40m EFHW to keep it in my garden. Guess what it works lol. What I will say though is if you know you're out of space and roughly where you need to drop or linear load etc. Experiment on eznec or mmana gal. Move the drop or linear load a few foot either way and see if you can optimize the pattern for your own situation. Anything will work but you might learn something in the process and possibly improve something too. Simon VA3SII G7HCD
@davidhodgson977
@davidhodgson977 Жыл бұрын
That was a great video.
@jharris0341
@jharris0341 Жыл бұрын
Thank you from Texas.
@watersstanton
@watersstanton Жыл бұрын
Hi Jim, thanks from UK. I went to the Texas 6m BBQ several years ago. Great time there.
@wshanney
@wshanney Жыл бұрын
Enjoy your videos Peter. Good advice. 73, W6QR
@jaywon555
@jaywon555 Жыл бұрын
Thanks Peter, seems of late there's alot of hocus pocus / housewife's tales myths going around with no basis to their claims, instead you often hear " It MUST be done THIS WAY OR ELSE!!! ", maybe it's confusing many green hands and causing these myths to gain more traction.
@GordonHudson
@GordonHudson Жыл бұрын
My immediate thought was a delta loop. In my experience you have to for the space you have. GM4SVM
@DonzLockz
@DonzLockz Жыл бұрын
Thanks for that clarification. :)
@deano3258
@deano3258 Жыл бұрын
Brilliant, love it great video.
@shandybrandy5407
@shandybrandy5407 Жыл бұрын
Thanks Peter for quelling all the myths surrounting the 90 degree antenna bend. Cheers! VU3TQT New Delhi
@ehayes5217
@ehayes5217 Жыл бұрын
...& btw, re the 90° angle issue, I'm like, sure, if everything's perfect, but how often is one's antenna setup "perfect"? For me, it's pretty much never; but after having so many different wire antennas (since 1973), I agree with u 100%, it just doesn't matter!😃🇺🇸
@chrisreich40
@chrisreich40 Жыл бұрын
"either" is not a synonym for "each", at least in American English. 🙂
@geoffreybawden6390
@geoffreybawden6390 Жыл бұрын
I like the chatty style … practicality and reality over myth .. VE4AE
@Rick-se5qm
@Rick-se5qm Жыл бұрын
This is the primary reason I no longer participate in ham radio forums. The level of antenna BS is astounding. During a 6M band opening, from the US east to west coast, I was receiving 59+ signal reports. When asked about my working conditions I was informed by several 6M propagation experts that my 6M yagi on the 120' tower was too high. Too bad that I had no other place to mount the yagi and still rotate it. Anyway it remained as it was until I earned VUCC on 6M.
@M7XCB
@M7XCB Жыл бұрын
Yes very true story. I was told by old friend it won't work very well that my wire antenna has lots of bends all most V shape and I told him I've had a QSL cards from Japan I was runny 10 watts and I've told him Look at slim jim antenna it got big bend in it and it fantastic antenna as I got one for 4m I will be making another bent antenna for 6m that's slim jim.
@2EOGIY
@2EOGIY Жыл бұрын
There should be a more holistic approach. Indeed acute angles cancel out a signal but in one direction. The best example is the rhomboid antenna, where that acute angle gives +6dB at the bending axis. An inverted V used smartly could open a path to Europe and the far east if slanted or tilted flat to radiate there.
@Gw0wvl
@Gw0wvl Жыл бұрын
I've had to bend most of my HF antennas over the years due to having a small garden , I've used coils to shorten them, Linear loading , Various bends and coils to get them to resonate where I want them to ... Sure it's all going to affect the radiation pattern , But saying that I still works lots of DX on them ... Unless you give these things a go you don't know if it's going to work for you so give it a go 👍 ... Regards de GW0WVL.
@watersstanton
@watersstanton Жыл бұрын
Many thanks for sharing.
@wolson9
@wolson9 Жыл бұрын
I have a friend who self admits he doesn't know anything about antennas. He says he throws up a wire and if it works, it is a good antenna. He has this most confounding loop I have ever seen. It goes out to a tree that 80 feet high and then straight down to the a pole 7 foot high then back up to another 80 foot tree and then down again and loops back to his house. He probably has 300 feet of wire in the antenna. But he can hear signals than most us miss! Despite having studied antennas as an Electrical Engineer, I swear, it is all Black Magic!
@roseingalsbe6085
@roseingalsbe6085 Жыл бұрын
thx PETER GREAT VID N4JRS 73
@watersstanton
@watersstanton Жыл бұрын
Cheers Rose
@phildurall7466
@phildurall7466 Жыл бұрын
That was "a cute" video, and got the point across! Reminds me of an old song ... "Bend Me, Shape Me"! Tnx Peter! 73 - KF6IF
@48pluto
@48pluto Жыл бұрын
I have a CB dipol. Sometimes i drop one wire leg so i get this 90 degree angle. Its 6-7 S-points better for local talk. SWR doesn't change. In the past i modeled this in software and that confirms it switches from horizontal polarization to vertical. Is it optimal? No. Does it work? yes.
@haraldlonn898
@haraldlonn898 Жыл бұрын
I wonder what is better, linear loading at the top or at the bottom of a vertical or on a horisontal dipole.
@watersstanton
@watersstanton Жыл бұрын
Sounds like another video!
@airheadzradioadventures
@airheadzradioadventures 10 ай бұрын
EFHW in the yard slopes down to a fence, bends 100, bends 90, drops 90 at a gate. Whatever. FL to Australia
@batwillow
@batwillow Жыл бұрын
So, what about the cobweb antennas and the moxon antennas... All got bends in them !
@n3jw34
@n3jw34 Жыл бұрын
Terrific Peter! You would find a comfortable home at "Sherwood" studios. But by producing "factual" movies. Grin. More. Share more great stuff with us. N3JW
@qutips33
@qutips33 Жыл бұрын
👍👍👍👍👍
@alalan3735
@alalan3735 Жыл бұрын
Can I bend a 33 foot vertical for 40 meters? I want to make it into an inverted L with a 90 degree bend at around 16 feet.
@watersstanton
@watersstanton Жыл бұрын
Yes you can.
@steve87uk
@steve87uk Жыл бұрын
Any antenna works better than no antenna.
@g0ooq537
@g0ooq537 Жыл бұрын
Nail on head, again 😂
@G_C340
@G_C340 Жыл бұрын
How polite "rubbish", most of us would be a bit less circumspect.
@hamshackleton
@hamshackleton Жыл бұрын
You forgot the Cobbweb! 🙂
@watersstanton
@watersstanton Жыл бұрын
Ah yes, a good example.
@Only_Hams
@Only_Hams Жыл бұрын
Dave Casler did a video about inverted Vs and said something pretty similar. My experience with an end fed strung up in trees has backed up this as well, I've worked people thousands miles away with antennas zigzagged in trees. I never take a protractor with me 😂
@DavidSmith_W6DPS
@DavidSmith_W6DPS Жыл бұрын
It is very annoying that there are so many myths, and the proponents will not hear anything different.
@alalan3735
@alalan3735 Жыл бұрын
How about a zig zag? ;)
@BrianFields
@BrianFields Жыл бұрын
A rhombic antenna _relies_ on acute angles.
@watersstanton
@watersstanton Жыл бұрын
Yes a good example.
@RandallRash
@RandallRash Жыл бұрын
My philosophy is start with "something", even if it's just a paper clip. Now you have a baseline. The fun begins when you start trying to make improvements. You may discover the next "big thing". 73
@petrusoroaga6528
@petrusoroaga6528 Жыл бұрын
Those bends are usually done at exact specific points based on specific fractions of the desired frequency and based on the antenna design. Saying bends (90 or more or whatever) ar fine is just plain and simple BAD advice. It does not take into account the actual physical propagation of radio waves and physics laws into account. This video is rubbish. A lot of talk but no actual physics explanations (because physics tells a different story). Bad advice for people who watch this. Yes, a bad antenna will still "work", no matter how you bend it, but the performance is exponentially worse.
@chr2810gt
@chr2810gt Жыл бұрын
I have a 40m/20m fan dipole at 10m agl and from what I can tell the angle is less than 90 degrees. I get 1.5:1 on 40m and 1.1:1 on 20m and I've been able to work Japan and the US much better than I would have done using an EFHW.
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