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
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!
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.
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.
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
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.
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..
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.
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
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.
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!
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 ?
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?
@@MoseUA-cam 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.
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!
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.
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?
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.
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
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!
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.
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.
Good for you and thanks for giving back to the hobby!
I built it 6 months ago and I use it with my KX1 and KX3........ works FB
Flexweave used to have braided wire that was thin gauges and light looking like solder wicking material.
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
Looks like you’re in Bayshore? Thanks for the great vid. Been looking at building that EFHW.
That was awesome. Wow. Thanks for doing that. Honestly, only recently discovered k6ark.
Looks like a great QRP antenna.
I’ve used those gear ties to hold up antenna masts b4, also. They’re really fast and easy to employ.
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.
Could you have filmed it any further away?
I couldn't see anything except something that looked like a fishing pole.
hi Josh, where did you source the fishing pole looking thing in the video?
Making a full power one now just waiting of the last few parts
Hi,good positive video, thanks for explaining how it works, 73 Rotterdam.
Good news. A kit is available on Amazon.
Yep!
I think you make the day of those birds who troll your video presentations.
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..
This video was very old now. I updated it with the creator two weeks ago. We build it live. Check it out.
Josh you need to make sure you update your links most of them for your equipment don’t work.
Swag swag! Thank you for sharing!
What is that telescopic stick you're using to hoist it with? Link please?
Josh, what is the computer program you were using? I mean the one which shows your contacts on a map.
Thank you Adam.
Adam's a great guy and a great ham!
OOOOOOOOH Yes, i have built two. Love them :) :)
Would you consider explaining how SWR matters?
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.
Love your videos, Josh!
I appreciate that!
Lash them?
Your inner pirate coming out?
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
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.
I’d get your jpole up as high as you can and out 50watts into it.
What is that telescoping pole thing? How do I get one, or two, or three? Thanks Josh, 73 de Tom KC3QAC
Hey Josh are you up in big bear in this video? Great place to be if you are.
Thank you. N0QFT
Great video thank you. How far were you able to contact someone?
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!
i like this antenna , i would like to just buy one, But I dont have time to make one.
I've seen similar things sold by Sotabeams in the UK. They're stronger and have crocodile clips to change band.
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 ?
That ringtone tho, I have the codec as my ringer. Super tiny antenna.
Does anyone know what software he’s using to track his contacts at 5:53? Thanks, K1FMJ
Oh that is cool!
I want to build one!
Great video, 73 from kn4vvy in SC
Thanks for watching!
I would have liked to see how the antenna performed on SSB. The mode you used says nothing about SSB propagation.
Sure it does. If you’re in the positive db range ssb contacts are possible.
I wish I knew what any of this means!
Does this thing need a counterpoise?
Nope
Cool little antenna! Thanks for sharing! 73, KM4OCJ
Thanks for watching!
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?
I’ve answered you dude. Check your replies.
@@HamRadioCrashCourse just did, I’ve asked this on 2 of your videos but the other has no reply. But thanks anyway.
No beers before antenna install, lol
Great.. I will also build one
Have fun
Anyone have a source for the winder that's being used?
I second this. I spent about 20min searching last night and couldn’t find it.
@@MoseUA-cam 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.
@@cdorcey1735 I’m not sure who you intended that for, but it wasn’t me!
@@MoseUA-cam it's a Cheep kite String Holder
Where can I find that pole?
eBay. Search “7 meter tenkara rod”
Is it very good or are premade antennas just bad?
Premade antennas are good. But nothing is as small and compact the K6ARK antenna TBH.
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!
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.
@@RobB_VK6ES Thanks for the clarification.
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?
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.
@@HamRadioCrashCourse Thanks for the feedback! I didn't expect an answer so quickly! Get back to your family and enjoy your Thanksgiving!
@@MailmanJustin I'm just waiting for my turkey to finish smoking!
You can construct it the same, only use 1 kilovolt rated capacitors.
Great video! Awesome antenna! Love the gear snakes, I've added them to my amazon list. - KD5QZG
You can buy it now.