Magnetic Loop Antenna Band Selection.
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- Опубликовано: 26 ноя 2022
- Since my magnetic loop antenna uses an FT-140-43 toroid for feeding, I have always found it bothersome to have to add of remove turns to the toroid for band selection. Finally I decided to build a band selector described in this video.
Magnetic Loop build: • Building a Magnetic Lo... and • Building a Magnetic Lo...
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Multimeter: www.amazon.co.uk/dp/B09GF2FZVY
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I have little use for metric, but you are correct that metric is better for applications such as this. 👍
Yup, a tapped ferrite trafo works well.
I enjoyed seeing the build in tinker cad. Its nice to see something practical being made from scratch with a 3d printer instead of just downloaded figurines, or not being shown at all how a part was designed with the "I just made this 3d printed part" non-explanations. Good Job!
Yep, I never did nor will ever print anything not practical.
Nice work Gil, you did nice design!!
That was a great 3-D print project! My homebrew loops have always been mono-band.... I hope this multiband solution works well for you - I went many years being 'cursed' with not having room for HF antennas - but the mag-loop saved the day!!
Thanks, it sure did for me!
Great job Gil! I love your Excellent design ;)
Great !!! Thank you for the job Gil.
Merci!
wow this is genius! thanks Gil, 73s
Thank you for sharing.
I wasn't subscribed ?. Weird. I love this channel.
Very cool, Gil. Love your DIY loop! I can't get over how expensive these things are buying from the usual sellers. I have some vacuum caps so I'll probably build one of these myself too. ps. Your private email is showing in the TinkerCad window.
Thanks, no big deal :-) The capacitors are the expensive parts.. It is however often the only option for apartments but fortunately performance is very good..
Really cool! Thank you Gil. That BNC to banana are the best thing
Hi Gil,
Excellent design. Hope to make a contact when my CW gets better. Stay safe. 73 WJ3U
Nicely done Sir! 73- KF6IF
Looks good Gil. Glad to see that some glue was involved 😄. I will listen out for you in the evenings. Do you have any favourite CW frequency, maybe on 40m?
10118 10123... Please do!
Very nice Gil! How do you go about calculating the inductances? It would be nice to see the output on an antenna analyzer. Thanks ad 73 de W2DAB
I don't ;-) trial and error...
what about the caps, sizes and where they go?
There is only one high voltage variable capacitor at the opposite side of the loop, around 300 to 400pf. See the loop construction videos..
on aurait bien aimé la voir tourner en live, cette loop !!! est ce pointu a regler, ou le fait de faire ce boitier aide pour le reglage ??
Bonjour, très pointu oui!
Very cool.
You should get and post a few alternate crypto addresses (other than just BTC). Perhaps Eth, ADA & LTC.
Sending BTC generally has a higher minimum (>$20) + fees, on most exchanges.
I didn't know, will do, thanks!
@@RadioPrepper
I've already paid for a beer with BTC, no problem. Have had BTC for a few years now it has evolved more as a settlement layer. The Lightning Network is ideal for transferring small amounts. If I've managed to copy your BTC address from the description, I'll be happy to send you a little greeting.
vy 73
Absolutely awesome thanks!
@@RadioPrepper
It's just a few SATs, you deserve more. you can control the transaction speed with the network fee, which is set relatively low in my case - but it's on the way.
Thanks, I really need to learn more about crypto... I added ETH and LTE, that might make it easier.. If I can buy some crypto, which are more promising?
Would you please confirm which toroid magnet you're using and also the dimensions of the loop
Hi, it's an FT-140-43, 5m perimeter loop, 16mm copper tubing (5/8).
@@RadioPrepper thank you buddy!
how big is the loop
Hi, 5m perimeter.
Hai stl?
www.thingiverse.com/thing:5661856
@@RadioPrepper grazie
Bonjours je débute dans le monde de la CB et je voudrais savoir, est-ce l'équivalent d'une boîte d'accord ?
Bonjour, non. C'est en fait un transformateur qui dans ce cas sert à alimenter l'antenne. Ceci dit les deux ajustent l'impédance, donc ce n'est pas aussi simple qu'un "non" catégorique ;-)
@@RadioPrepper merci pour ta réponse 👍🏻
😩 Promo_SM!!!
Great Projekt Gill! Please more often vids! 73 de Nik OE3SZE