The Coolest Ham Radio Antenna You Can't Buy

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Not only is this a cool antenna, its is probably the lightest, most protable antenna I own that can work down to 40 meters. Thanks to K6ARK for sending me this very cool antenna! • Ultimate UL Portable R...
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1 июн 2024

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Комментарии : 83

@DK5ONV 3 года назад

Hey Josh! I am a follower of you channel since 2-3 years I believe. You deserve all the Respect and Honor for what you doing together with other HAM's to keep Amateur Radio alive. Thx for all this & stay save. 73's de Günter

@HammockRadio 3 года назад

It's an amazing compact antenna, Adam does great work. I never fail to make a contact with mine while doing QRP from within the city. That's better than some other antennas I've tried.

@joeframo3347 3 года назад

Hello Josh happy holiday buddy laid out with covid-19 watching your videos cool antenna wow catching up to all your videos this is so awesome thank you for sharing Josh you're the man

@backcountryamateurradio 3 года назад

That was awesome. Wow. Thanks for doing that. Honestly, only recently discovered k6ark.

@jasonconrad9212 3 года назад

Yup, I built one! Awesome antenna. I’m using mini banana plugs to make it a linked end fed. I’m using 3 hole tent fly guy rope adjusters and zip ties. Just string up the antenna, disconnect for what band I want to use. I made it for 20,30,40 meters. I’m not sure if I need to make it a linked wire antenna element, but it works awesome with my KX2 and my SW-3B!

@woodskid4ever Год назад

Looks like you’re in Bayshore? Thanks for the great vid. Been looking at building that EFHW.

@nightwaves3203 3 года назад

Flexweave used to have braided wire that was thin gauges and light looking like solder wicking material.

@lomgshorts3 2 года назад

I teach Amateur Radio at our Church. During the classes, I always encourage my students to DIY antennas, kits, or scratch build from a schematic. I discourage "off the shelf" buying of equipment unless it is so complicated, beyond their experiences, or uses high voltages that can kill. I also encourage QRP communications as it teaches my student that it doesn't take 100-1,000 watts to make a contact. Most stations really make room for a QRP station either for a good QSO, or contesting which really gives my student a thrill. I make time to teach the "Radio Merit Badge" to Boy Scouts with slightly heavy emphasis on Amateur Radio. I also practice what I preach, making a contact to Wales on 52.525 FM with a homemade dipole antenna with only 10 watts on my Yaesu FT-690R MK2. Impossible you say? I have the QSL card to prove it. When conditions are right, anything is possible.

@HamRadioCrashCourse 2 года назад

Good for you and thanks for giving back to the hobby!

@cwqrpportable 2 года назад

I built it 6 months ago and I use it with my KX1 and KX3........ works FB

@A-Non_kma 3 года назад

Love your videos, Josh!

@HamRadioCrashCourse 3 года назад

I appreciate that!

@davidsradioroom9678 3 года назад

Looks like a great QRP antenna.

@jamesdonovan5165 3 года назад

Great video thank you. How far were you able to contact someone?

@Bernard-John 3 года назад

Hi,good positive video, thanks for explaining how it works, 73 Rotterdam.

@harpmatt100 Год назад

Hi Josh, this antenna is really really awesome !! I never thought, that it ´s possible, to work with that antenna, but it really works. I´ve got a 20m antenna , resonant on 40m/20m/15m and 10m, measured with a Nano NVA. I had some QRP QSOs on 40m and 20m with FT8 and CW, using a TruSDX and the QRP-Guys Digital trx, I worked a lot of european stations. I don´t know, what die SMD capacitor is for . I have experiences in "Fuchs " antennas, where you also use a capacitor, but on the High resistance Side. Do you have a good explanation for the capacitor on this side, the cable feeding point ?

@azav8raa 3 года назад

hi Josh, where did you source the fishing pole looking thing in the video?

@peytonbass5396 3 года назад

Thank you Adam.

@HamRadioCrashCourse 3 года назад

Adam's a great guy and a great ham!

@beekeeper8474 3 года назад

Making a full power one now just waiting of the last few parts

@Hookmodo 2 года назад

Swag swag! Thank you for sharing!

@stridermt2k 3 года назад

Oh that is cool! I want to build one!

@derekcopsey6989 3 года назад

OOOOOOOOH Yes, i have built two. Love them :) :)

@fmmrz5 3 года назад

Hey had a question about gmrs. If the transmit power is capped at 1w how is it legal to have a 50w mobile gmrs radio. I saw a you then video that they were copyable at 26 miles even in near LA suburbs!

@havefun2952 Год назад

Josh, what is the computer program you were using? I mean the one which shows your contacts on a map.

@alallan7584 3 года назад

Great video, 73 from kn4vvy in SC

@HamRadioCrashCourse 3 года назад

Thanks for watching!

@aurtisanminer2827 3 года назад

I’ve used those gear ties to hold up antenna masts b4, also. They’re really fast and easy to employ.

@JamesoftheBrittons 3 года назад

What is that telescopic stick you're using to hoist it with? Link please?

@fredflintstone8048 3 года назад

I think you make the day of those birds who troll your video presentations.

@ky4tgtodd203 3 года назад

Cool little antenna! Thanks for sharing! 73, KM4OCJ

@HamRadioCrashCourse 3 года назад

Thanks for watching!

@JennyEverywhere 2 года назад

Good news. A kit is available on Amazon.

@HamRadioCrashCourse 2 года назад

Yep!

@kirkgroeneveld3191 2 года назад

Thought you were going to tell us how to construct this antenna, not just check it out. But I'm gonna go order the parts for an endfed UnUn female BNC now..

@HamRadioCrashCourse 2 года назад

This video was very old now. I updated it with the creator two weeks ago. We build it live. Check it out.

@baron1c 3 года назад

HI Josh, Slightly off topic, I recently got a TYT 9800d+ that has 10m/6m/2m/70cm Am and Fm only, no SSB. Other than FM repeaters on 10 and 6m, Is there any usefulness to those bands? i want to simplex with a friend 10 miles away but there is a bit of terrain in the way. Is NVIS possible? would a horizontal dipole get me over/through the terrain? i typically use a vertical j-pole for 2m/70cm. Trying to decide what antenna set up to go with for 10/6m. thanks

@K6ARK 3 года назад

Unfortunately 6 and 10m will not work for NVIS. NVIS works best close to the lowest usable frequency - typically 40-80m depending on the time of day/night. 6 and 10m sometime offer sporadic E propagation which typically skips 500-1000 miles or so, sometimes longer. It is sporadic in nature (hence the name) but typically occurs most in summer, and to a lesser extent in mid winter. The Eastern US gets a lot more sporadic E propagation than the West for some reason. Listening or calling on the typical FM simplex calling frequencies (52.525 MHz or 29.600 MHz) may net you some contacts and is certainly worth a try. When the band is open, most traffic will be on SSB on lower frequencies in each band, but some will be working FM as well.

@HamRadioCrashCourse 3 года назад

I’d get your jpole up as high as you can and out 50watts into it.

@thomasmanson1119 2 года назад

What is that telescoping pole thing? How do I get one, or two, or three? Thanks Josh, 73 de Tom KC3QAC

@glenmartin2437 3 года назад

Thank you. N0QFT

@mscir 3 года назад

Would you consider explaining how SWR matters?

@tylerdean980 3 года назад

The higher your SWR, the less power exits the antenna, and the more that goes back into your radio. An unacceptable SWR can damage the finals in your radio. The Lower the better. Most antennas can be tuned by lengthening or shortening them, others can simply be tuned with a tuner.

@seancooley345 3 года назад

Does anyone know what software he’s using to track his contacts at 5:53? Thanks, K1FMJ

@AdamMelancon 3 года назад

Great video! Awesome antenna! Love the gear snakes, I've added them to my amazon list. - KD5QZG

@peterkerr4704 3 года назад

Josh you need to make sure you update your links most of them for your equipment don’t work.

@MailmanJustin 3 года назад

I noticed you said you also used this antenna with 5w. If I wanted to build this to be used on my new TX-500 with 10w on digital, would this work ok or should I construct it a bit differently to not burn it out?

@HamRadioCrashCourse 3 года назад

That is a question that K6ARK might be better off answering. Its generally a good idea to half the output of the radio for digital. 5 watts digital is likely fine on this antenna. Not sure about ten given the very fine wire gauge.

@MailmanJustin 3 года назад

@@HamRadioCrashCourse Thanks for the feedback! I didn't expect an answer so quickly! Get back to your family and enjoy your Thanksgiving!

@HamRadioCrashCourse 3 года назад

@@MailmanJustin I'm just waiting for my turkey to finish smoking!

@porkyfedwell 3 года назад

You can construct it the same, only use 1 kilovolt rated capacitors.

@RedLine_Renesis 3 года назад

This is kind of a stupid question but bear with me as I am fairly new to the technical details of HAM Radio but catching up. Say I hypothetically wanted to tune this antenna, how would that be? Is it depending on how many loops I leave in? Thanks!

@robbvk6es 3 года назад

The toroid with the windings on it is a transformer used to match the 50ohm impedance antenna port on the radio to the approx 5000 ohm high impedance of the end fed halfwave long antenna wire. This transformer forms part of the transmission line and is not part of the antenna per se it just happens to be integrated into the "antenna" in this case. You tune the resonant frequency of the antenna by adjusting the radiating wire since the transmission line including the transformer does not affect the resonant frequency of reception or transmission of the antenna (under ideal conditions). You might consider the transmission line acts as a pipe which merely serves to deliver the signal so plays no part in tuning the resonant frequency.

@RedLine_Renesis 3 года назад

@@robbvk6es Thanks for the clarification.

@Pigeon__Man 3 года назад

That ringtone tho, I have the codec as my ringer. Super tiny antenna.

@ThisTall 3 года назад

Newbie question. Why do you need a license and callsign to use the FT3DR if it only transmits in UHF/VHF? I thought a HAM licence was only for transmitting on low frequencies?

@HamRadioCrashCourse 3 года назад

I’ve answered you dude. Check your replies.

@ThisTall 3 года назад

@@HamRadioCrashCourse just did, I’ve asked this on 2 of your videos but the other has no reply. But thanks anyway.

@mabo4848 3 года назад

Great.. I will also build one

@HamRadioCrashCourse 3 года назад

Have fun

@larspregge6420 3 года назад

Low power, thats why FT8 exist. OK, lot of ppl using FT8 with highpower :(. But, minimum for portable stuff should be CW, no (other) digimode. (my Opinion) or better ssb. nice Video, ty.

@Doodles-W3BOO 3 года назад

Lash them? Your inner pirate coming out?

@jkickin2 3 года назад

Hey Josh are you up in big bear in this video? Great place to be if you are.

@daneculp4731 3 года назад

Could you have filmed it any further away? I couldn't see anything except something that looked like a fishing pole.

@TXLorenzo 3 года назад

No beers before antenna install, lol

@josebrivera1716 3 года назад

I would have liked to see how the antenna performed on SSB. The mode you used says nothing about SSB propagation.

@HamRadioCrashCourse 3 года назад

Sure it does. If you’re in the positive db range ssb contacts are possible.

@JohnDoe-pv2iu 2 года назад

I wish I knew what any of this means!

@garagehack9271 3 года назад

Does this thing need a counterpoise?

@HamRadioCrashCourse 3 года назад

Nope

@Barty.Crowell 3 года назад

Where can I find that pole?

@HamRadioCrashCourse 3 года назад

eBay. Search “7 meter tenkara rod”

@TheSocketshock 3 года назад

Is it very good or are premade antennas just bad?

@HamRadioCrashCourse 3 года назад

Premade antennas are good. But nothing is as small and compact the K6ARK antenna TBH.

@sdonovanatwpi 3 года назад

Anyone have a source for the winder that's being used?

@MoseYoutube 3 года назад

I second this. I spent about 20min searching last night and couldn’t find it.

@cdorcey1735 3 года назад

@@MoseRU-vid SWR: Standing Wave Ratio, is a measure of how much energy that the transmitter sends up the feedline just bounces off the antenna and comes back down to the transmitter, where the energy is absorbed (converted to heat). Since it's coming back, that energy isn't flying off into space to make contacts. Similarly, energy in the antenna isn't getting into the feedline, either, so your received power is less. You might not notice that, though, since reception in the low HF bands is usually dominated by interference, not starved for power.

@MoseYoutube 3 года назад

@@cdorcey1735 I’m not sure who you intended that for, but it wasn’t me!