TNX Manuel, it is pure ham spirit to share your work and all the files you developed for free and encourage other hams to build a DIY version of this antanna. Looking forward to your next videos 👍😃,‘73‘s
Very cool "re"construction of the Moxon antennas. It's the easy entry of DIY project...so as you said...No more excuses for not operating outside with low dimension and weight antennas. Thank you very much for sharing your project with us. That's Ham Spirit at its finest. 73's de Stefan
You do such nice work Manuel. Thank you. I knew Doug DeMaw, and you remind me of him. A comment for builders: Note that the antenna SWR should be tested outdoors and up in the air at least a couple of wavelengths above the ground so that reflections and absorption from nearby objects, (like the ground,) do not affect the reading.
I finally completed the 2m Moxon build today. SWR is 1.1 on 144.200 and 1.24 on 146.52. I'm very happy with it. So easy to put together. Danke schön, Manuel! If anyone has modified the center adaptor part I'd love to print various versions. Currently in need of one with a 10mm hole for a carbon fiber mast.
Thank you for this video. Very clear and easy to understand. I have a 3D printer, so I am certainly going to try this. Oh, and your English is brilliant!
Would be great to see those bands alive again in SSB/CW. Unfortunately it can be very frustrating outside contests. But your / Davids design is great and hopefully will motivate OMs to become more active.
First🎉 Will be building this for my university’s radio club welcome week. Maybe build it onsite at our booth to keep me busy just in case no one drops by to get info on the radio club 😅
Great Video, comes at the right time - thank you very much! May I ask what type (brand) of filament you're using? Your prints seem to look absolutely awesome! Think, you mentioned in a previous video, that you are using a Prusa printer? Again, thank you.
On this print I´m using "Das Filament" PETG. However, while I still have my old trustworthy workhorse of a printer "Prusa i3 MK3S+" it´s currently unemployed.... I switched to Babu Lab X1C.... One hell of a printer, that makes anything else look vintage..... 73 Manuel; DL2MAN
Great great job Manuel !!! Thanks so much for sharing your excellent work with us . I definitely have to try that out. The small plastic pipes you use what are they sold as in German Baumärkten. Installationsrohr ? Bewässerungsrohr ? I’m going down to Germany in a couple of weeks and try to find some of these. Absolutely professional job Manuel. 73 from Sweden
Hi, I think they can be found in department for electrical installation. Or multi purpose material department, where you also find various profiles, like L-Shaped Aluminium rods. I bought it from Amazon (see link in the description of the print files)
Hello Manuel. Unfortunately I have not found the correct version of the BNC socket for this Moxon antenna. Can you or another OM let me know here? Best 73 Gerd
Hi Manuel Very much enjoy your exploits. You mentioned firmware re the hand held. Are you going to explore that further. Very interested in that. Kind regards Richard. VK2VD
Hi Richard, I have 4 devices here which were all flashed by myself with the new firmware. So it was already explored a little, or do you mean making a Video ? ruclips.net/user/results?search_query=quansheng+IJV Didn´t plan on that, but if your thirst could not be quenched on RUclips, maybe I need to do it, to show it in practice. 73 Manuel; DL2MAN
Hi Manuel, ich baue gerade deine DIY Moxon Antennen nach und würde gerne wissen, welchen Mast du für deine Portabel-Aktionen benutzt. Vielen Dank und 73 für das klasse Video!
This is way cool!!! I never really paid attention to this type of antenna, and now you've made me curious! But this reminds me of a question I've had for a long time that nobody ever talks about. Can you give us a lesson on: gauge of wire and relationship to maximum safe PEP by wire gauge. Or reworded: minimum diameter wire gauge required for specific PEP?
Interesting question, and I need to think about that. Shot from the hip, I´d say it´s uncritical, but this is just a belly feeling and don´t take my word for it. Will definately think about it, and come up with a satisfying answer. Thanks for the question. 73 Manuel; DL2MAN
iam running - cause not allowed in the appartmentbuilding here - an efhw with 1:49 unun and, for "stealth-mode" with a copperwire that has only a diameter of 0.2mm. thats enough for 100watt without any problems. it doesnt glow in the dark. 😀 maybe that helps a bit
@@andip4756 That is helpful! I also keep confusing myself... I think the diameter of the wire isn't my scary thought, it is the size of the core I'm using and the diameter of the wire I use to wind my transformer. That's what I need to investigate. I have a 100W rig, but I turn it down to 10W because I'm scared I will overheat the transformer.
I have been using DX-Wire Ultralight wire 0,3 mm2 on HF with 100+ Watts, so it's not critical. Just keep in mind that the velocity factor can change, and thicker wires result in a bit wider bandwith.
Quansheng UV-K5(8) -> But it needs to be flashed with custom Firmware. I´m using www.universirius.com/en_gb/preppers/quansheng-uv-k5-manuale-del-firmware-ijv_v3/ It can do SSB, but that´s more DSB. (AM with suppressed carrier). It is intelligable on SSB radio, buit I would not use it in a contest, because of the double bandwidth.
Hi could I please ask what is the total length and width of the 70cm antenna as when I tried to put it on my 3D printer the file shows as being too long to print, as the model was off the edge of the printer bed, I have a creality ender v3 which has a bed of 220x220.
RG58. Not because it´s the best, but because I have plenty of it in various lengths and it´s dirt cheap. Probably not the reply you was hoping for. But If I´d buy something specifically for VHF/UHF, I´d probably buy something in the size of RG58 with less attenuation. AT least for this ultralight portable stuff I´d not go about RG58 diameter. Plenty of options these days.... 73 Manuel; DL2MAN
@@dl2man no trouble! i just wanted to know. i also use alot of RG58, but now i found out about RG174 and its pretty OK for most things. it get expensive though.
Quansheng UV-K5(8) -> But it needs to be flashed with custom Firmware. I´m using www.universirius.com/en_gb/preppers/quansheng-uv-k5-manuale-del-firmware-ijv_v3/
Don't ask my why, this has historical reasons, I can't explain but: 2m/70cm SSB and CW are always horizontally polarized, while for FM vertical polarization is being used.
TNX Manuel, it is pure ham spirit to share your work and all the files you developed for free and encourage other hams to build a DIY version of this antanna. Looking forward to your next videos 👍😃,‘73‘s
Very cool "re"construction of the Moxon antennas.
It's the easy entry of DIY project...so as you said...No more excuses for not operating outside with low dimension and weight antennas.
Thank you very much for sharing your project with us.
That's Ham Spirit at its finest.
73's de Stefan
You do such nice work Manuel. Thank you. I knew Doug DeMaw, and you remind me of him.
A comment for builders: Note that the antenna SWR should be tested outdoors and up in the air at least a couple of wavelengths above the ground so that reflections and absorption from nearby objects, (like the ground,) do not affect the reading.
I finally completed the 2m Moxon build today. SWR is 1.1 on 144.200 and 1.24 on 146.52. I'm very happy with it. So easy to put together. Danke schön, Manuel! If anyone has modified the center adaptor part I'd love to print various versions. Currently in need of one with a 10mm hole for a carbon fiber mast.
Thank you for this video. Very clear and easy to understand. I have a 3D printer, so I am certainly going to try this. Oh, and your English is brilliant!
Would be great to see those bands alive again in SSB/CW. Unfortunately it can be very frustrating outside contests. But your / Davids design is great and hopefully will motivate OMs to become more active.
First🎉
Will be building this for my university’s radio club welcome week.
Maybe build it onsite at our booth to keep me busy just in case no one drops by to get info on the radio club 😅
Printing several parts today. Very nice!
Thanks !
Great stuff, thanks for the files. Printing as I type this! 👍
Fantastic stuff! Thanks for sharing.
Thanks Manuel. Can you tell me the total length of the wires for uhf and vhf. Thank you
Nice video Manuel! Thanks!
👍🏻 Really nice explanation and thanks for sharing the 3d files. I'll try to build one.
Fantastic project....that could be done by many....
Thanks, that was the idea ! David did a great job, and this needed to be made available for everyone.
Excellent ! Thank you very much for sharing.
Super Video, vielen Dank für die 3d Dateien
This is excellent, I just subscribed!
Brilliant, thank you Manuel! I now have at least two fewer excuses for not buying a 3D printer (2m and 70cm)... 73, Jan M7HNK
nice design! tnx Manuel. Will build one as soon as Im back home from vacation :-) 73 de Jan, DG1JAN
Yes that's a nice project for upcoming vacation
Great Video, comes at the right time - thank you very much! May I ask what type (brand) of filament you're using? Your prints seem to look absolutely awesome! Think, you mentioned in a previous video, that you are using a Prusa printer? Again, thank you.
On this print I´m using "Das Filament" PETG. However, while I still have my old trustworthy workhorse of a printer "Prusa i3 MK3S+" it´s currently unemployed.... I switched to Babu Lab X1C.... One hell of a printer, that makes anything else look vintage..... 73 Manuel; DL2MAN
Great great job Manuel !!! Thanks so much for sharing your excellent work with us . I definitely have to try that out. The small plastic pipes you use what are they sold as in German Baumärkten. Installationsrohr ? Bewässerungsrohr ? I’m going down to Germany in a couple of weeks and try to find some of these. Absolutely professional job Manuel. 73 from Sweden
Hi, I think they can be found in department for electrical installation. Or multi purpose material department, where you also find various profiles, like L-Shaped Aluminium rods. I bought it from Amazon (see link in the description of the print files)
Hello Manuel. Unfortunately I have not found the correct version of the BNC socket for this Moxon antenna. Can you or another OM let me know here?
Best 73 Gerd
If you follow the link to the print files, there´s links in the description to the parts, I´ve used.
Hi Manuel
Very much enjoy your exploits. You mentioned firmware re the hand held. Are you going to explore that further. Very interested in that.
Kind regards
Richard. VK2VD
Hi Richard, I have 4 devices here which were all flashed by myself with the new firmware. So it was already explored a little, or do you mean making a Video ? ruclips.net/user/results?search_query=quansheng+IJV Didn´t plan on that, but if your thirst could not be quenched on RUclips, maybe I need to do it, to show it in practice. 73 Manuel; DL2MAN
Hi Manuel, ich baue gerade deine DIY Moxon Antennen nach und würde gerne wissen, welchen Mast du für deine Portabel-Aktionen benutzt. Vielen Dank und 73 für das klasse Video!
Hi, am Auto nutze ich den Spiderbeam 10m Mini Mast, Zu Fuß den DX-Wire 10m Mini Mast, Beide jeweils ohne die obersten 4 Segmente. 73 Manuel; DL2MAN
Hi does this antenna work on 446 as I’m not ham yet i have a small group friend I talk to
Look at 16:49 there's the swr plot. I would say yes.
Truly amazing, thanks for sharing with all of us, the 70cm Moxon doesn't fit in my printer, could it be made in two parts? Thanks and 73
Probably could be , but I won´t provide the files for it. 73 Manuel; DL2MAN
This is way cool!!! I never really paid attention to this type of antenna, and now you've made me curious! But this reminds me of a question I've had for a long time that nobody ever talks about. Can you give us a lesson on: gauge of wire and relationship to maximum safe PEP by wire gauge. Or reworded: minimum diameter wire gauge required for specific PEP?
Interesting question, and I need to think about that. Shot from the hip, I´d say it´s uncritical, but this is just a belly feeling and don´t take my word for it. Will definately think about it, and come up with a satisfying answer. Thanks for the question. 73 Manuel; DL2MAN
iam running - cause not allowed in the appartmentbuilding here - an efhw with 1:49 unun and, for "stealth-mode" with a copperwire that has only a diameter of 0.2mm. thats enough for 100watt without any problems. it doesnt glow in the dark. 😀 maybe that helps a bit
@@andip4756 That is helpful! I also keep confusing myself... I think the diameter of the wire isn't my scary thought, it is the size of the core I'm using and the diameter of the wire I use to wind my transformer. That's what I need to investigate. I have a 100W rig, but I turn it down to 10W because I'm scared I will overheat the transformer.
I have been using DX-Wire Ultralight wire 0,3 mm2 on HF with 100+ Watts, so it's not critical.
Just keep in mind that the velocity factor can change, and thicker wires result in a bit wider bandwith.
So now the question is could you get even more forward gain by setting up like a hexbeam. Time to tinkercad.
I think the 2m design could be easily adapted to do a collapsible 3ele wire yagi.
Can you provide the model of the radio again please? This can transmit on 2m ssb?
Quansheng UV-K5(8) -> But it needs to be flashed with custom Firmware. I´m using www.universirius.com/en_gb/preppers/quansheng-uv-k5-manuale-del-firmware-ijv_v3/ It can do SSB, but that´s more DSB. (AM with suppressed carrier). It is intelligable on SSB radio, buit I would not use it in a contest, because of the double bandwidth.
Hi could I please ask what is the total length and width of the 70cm antenna as when I tried to put it on my 3D printer the file shows as being too long to print, as the model was off the edge of the printer bed, I have a creality ender v3 which has a bed of 220x220.
Longest length here is 245mm...just fitted on my P1S.
I'm in the same boat with my Ender v3. Bed is too small to accommodate the 70cm design. I will have to have a friend print it.
what is your favorite coax for portable operation like this on 2M?
RG58. Not because it´s the best, but because I have plenty of it in various lengths and it´s dirt cheap. Probably not the reply you was hoping for. But If I´d buy something specifically for VHF/UHF, I´d probably buy something in the size of RG58 with less attenuation. AT least for this ultralight portable stuff I´d not go about RG58 diameter. Plenty of options these days.... 73 Manuel; DL2MAN
@@dl2man no trouble! i just wanted to know. i also use alot of RG58, but now i found out about RG174 and its pretty OK for most things. it get expensive though.
@@Francois_Dupont I avoid using RG174. Instead of that I use RG316
@@dl2man is there something i am missing? i looked online and they both seem pretty similar except that RG316 has a slightly bigger inner conductor.
Mechanical stability ! RG174 is easy to break, while RG316 is way more robust for use in the field.
Hello Manuel, you were quicker than I could reply, I have now found the part. 73 DL9GAW
What is the 10mm tube used for?
I think for electrical installation
What is that radio you are using ?????
Quansheng UV-K5(8) -> But it needs to be flashed with custom Firmware. I´m using www.universirius.com/en_gb/preppers/quansheng-uv-k5-manuale-del-firmware-ijv_v3/
@@dl2man thanks
thank you
Very nice design but the horizontal polarisation will be less than ideal on VHF.
Don't ask my why, this has historical reasons, I can't explain but: 2m/70cm SSB and CW are always horizontally polarized, while for FM vertical polarization is being used.
You can use the Moxon vertically, good for repeaters.
UFB
Thank you