5K GIVEAWAY Announcement / Finished K8TND VLF Sferics Receiver
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- Опубліковано 10 лют 2025
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Updates on the 5K giveaway I promised some while ago and a quick look on the finished version of the K8TND VLF / ELF Sferics Receiver. Thanks so much @PCBWay for the PCB boards.
If you enjoy the videos be sure to subscribe !
73, YO6DXE
FIRST GIVEAWAY ANNOUNCEMENT VIDEO:
• GIVEAWAY - Improving A...
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DX EXPLORER:
Videos on homebrew amateur radio gear that will hopefully inspire you into crafting your own unique radio projects.
I am passionate about amateur radio since childhood. I got back into the hobby in 2016, while living aboard my sailboat. I received my license in 2022 as YO6DXE. I use mostly QRP equipment experimenting with all modes, but I prefer CW or SSB.
If you want to follow my sailing and outdoor adventures, come visit.
WEBSITE:
28-north.com
YOU TUBE:
/ @28northsailing
#giveaway #pcbway #amateurradio #hamradio #electronics
Thanking you most kindly from English England
Always a pleasure. Greetings from Transylvania.
Great collection of project PCB's. Good luck, everyone!
I wish I had the other missing two but I had no time to design them. Next time though 😁😁. 73, YO6DXE
Congratulations, on passing the 5k subscribers. Keep up the great work on your videos, I have no doubt that your channel will become a reference channel for all newcomers to the circuit building hobby.
Thank you so much. If I can convince people to try and build one circuit at least.. then I am one happy man 😁. 73, YO6DXE
❤❤ ty for the videos I’m researching a lot of info for vlf receivers and so far this is one of the easiest to buildup
Its more like ELF but we are about there 😁😁. I have a proper VLF receiver coming as well but is not so simple like this one.
Hey Chip, nice too hear the rain on the roof. Here in Central Queensland we have been looking at potential storms for the last few days but had nothing. Well done mate on the 5000 subs. 73 mate and take care
Ohh I love the sound of the rain. It relaxes me so much... maybe sometimes too much as I just want to jump in bed and sleep 😅😅. Thank you so much 🙏. 73, YO6DXE
@dxexplorer Sleep not so much, I like a good cup of coffee and watch the water run down the driveway. But yes it is nice to drift off to sleep as well.
@keithflesser1533 I think is the sound that makes me sleepy. I had the same problem when I used to live on my sailboat. As soon as it started raining and I could hear the sound... my eyes were closing 😅😅... even after a cup of coffee 😁.
Thanks for your work.
Thank you as well for watching.
VLF very interesting information
I am new to this as well. 😁 73, YO6DXE
Congrats on getting 5K! Pretty cool set of boards you have going with the Spherics.
Thank you so much. I am up in the mountains now... the receiver works fantastic. 😁😁 73, YO6DXE
Yes, I have set everything very private.
It a nice radio.
You doing great buddy! 💪🏻
Thanks so much buddy. This winter i try to do a simple multiband analog CW transmitter 😁. 73, YO6DXE
Many compliments, and Go on!
Thank you 🙏🙏 73, YO6DXE
Great idea I think it the best way of doing it
I agree as well. Is fair play this way. I really wish I could pick winners from all the subscribers to the channel but it is what it is. I have to deal with the limitations we have. 73, YO6DXE
Congratulations on 5k subscribers, you're well on your way to 10k! That’s a lot of PCB projects!
To keep people busy over the cold winter days 😁😁. Thank you so much 🙏. 73, YO6DXE
Love your videos, you are such a chilled guy
Must be because I used to live on a sailboat and I had to be chill since I could only move with 10km/h 😅😅😅. Thanks so much for watching. 73, YO6DXE
@dxexplorer I love in a static caravan so I chill because it's always freezing in winter 😂
Congrats for the 6.7k subscribers! Long live to the channel !
Thank you so much 😁. Today I will pick the winner. A bit later today as I just opened my eyes 😅. 73, YO6DXE
Nice giveaway and a really cool project. Congratulations on your growing channel!
Thank you so much 🙏 73, YO6DXE
Your videos are great and I always look forward to them. 👍
Thank you so much for watching the videos. 73, YO6DXE
Well done Chip, you deserve all your subs.
Thank you Nigel. We must catch up with a lot of stuff. Radio show on the way soon. Probably on the 18th once I get back from the mountains. 73, YO6DXE and I hope you are doing good.
🎉🎉🎉
😁😁🙏🙏, 73, YO6DXE
Congratulations (albeit belated) on reaching the 5K milestone. I'm really enjoying your videos.
Thank you so much for watching them. Means a lot to me. 73, YO6DXE
Love to watch your videos ,as usual.well done man ,for everything 👍🏻
Thanks so much my friend. Have an amazing weekend. 73, YO6DXE
Here's to the next 5k Chip, congrats
Thank you so much 😁🙏🙏. 73, YO6DXE
Good luck 😊
Thanks so much my friend. 73
DX Explorer is the way 🎉
😅😅😅 thanks to PCBway 💪😅. Have a fantastic day Hendrik 🙏
I like that 3D printed key!
I really love it as well. I just ordered the two little bearings it needs as I did not had those. When I come back from the mountains I will do a video on the key. Probably right after the one with the Giveaway.
@@dxexplorer I look forward to watching the video on the key
Felicitari pentru 6.7k subscribers!
Multam mult de tot 😁😁
Nu ai somn? Eu macar îs schimbul 3! 😁
@ezekiel7112 😅😅 ba daaaa. Acum de ceva vreme am ajuns la Cioclovina la tabara de cercetasi. Fug la somn ca la 7 am trezire... merem la taiat lemne de foc. Servici usor... 73 😄
Good Luck Everyone! May the Morse be with you 73 M0KoE
Haha that sounds so cool. 😅😅 73, YO6DXE
You need a red hat to match your nice red sweater! Maybe it should have the DX Explorer logo on it too!
Ohhh if its red is no longer sailor is diver hat... 😅 Jacques Cousteau memories 😁. 73, YO6DXE
5k is huge
It is indeed as I never thought I would get here since all the videos I make are pretty much me sharing whatever I do hoping that some people may be doing the same projects as I do and we kind of share info with each other. So is a surprize to me too but a pleasant one 😁. 73, YO6DXE
Very nice 👍
Thanks so much for watching. 73, YO6DXE
@dxexplorer thank you
Looking forward to watch your projects!
I am excited to put them all together as well and finally have finished projects in enclosures and all that. 😅😅 73, YO6DXE
Wow! I just finished my Sferic VLF receiver by Your schematics. It's very similar to Yours. I used aluminium case BIS (made by Unibox) with measurements 100*55*23mm
Very similar with Yours and also has 6F22 battery inside.
Try to made video with it when I could go to my country house.
Thanks for Your work and videos!
Also want to purchase this awasome pcbs.
73!
Ohhh that sounds great. By the way about the PCB, I updated the design to use a small potentiometer to fit in the case. I had to make modifications to mine to be able to fit the big potentiometer in the case. I also used the receiver these past days a lot. Those cracks and strange sounds are exciting and I don't know why. Basically I listen to nothing... still is so exciting 😅. 73, YO6DXE.
Commenting for the giveaway
Thanks for the comment 😁. 73, YO6DXE
Hi Chip.. good luck with hitting 10k subs really soon
Thank you so much. Hopefully soon as I have some prizes in mind already 😁. 73, YO6DXE
cool
😁🙏 73, YO6DXE
Good luck with your growing chanell.
Thank you so much 🙏. I don't bother much to have loads of subscribers... but I am happy people actually watch the videos 😁. 73, YO6DXE
Ara mateix vaig a comentar al altre vídeo, gràcies!
Haha ok 😅😅. 73, YO6DXE
That recording at the end of your video was sublime! I will now start to collect the parts required for a VLF receiver. I'm not worried what style of potentiometer to use... I am happy to solder three wires to a potentiometer if need be. ZL3GIL
I wanted to change it more for kids that may want to try it and make their life easier 😅😅😄😄. I am playing with it as we speak as I am up in the mountains and I love what I hear. 73, YO6DXE
hi dx explorer great video!!
Thank you so much for watching. 73, YO6DXE
It is good to see the newer hams home brewing and doing such good looking projects. 73 de WB8FEQ
Thank you so much. Ohhh winter is coming so I hope I have time for more projects. I love homebrewing. 73, YO6DXE
Better make antenna connector to receiver's top and switch, 3,5mm headphone plug, indicator led in bottom.
I think - need use antenna connector with low capacitance ( antenna's capacitance is about 20pF and any extra capacitance to ground make capacitive voltage divider and reduce input signal ).
So far testing it works amazing with the connector I used. At the end is just a simple receiver I am not really looking into high performance out of it... it's all just for the fun of it 😁. I thought about the switch and the LED on the bottom but then if I want to place it standing when storing it in a locker or some place.. those will bother. So that is why I place all on top. Easier access to all also.
@@dxexplorer Thanks, sure! Have you considered an ELF receiver as your next project? An ELF receiver can be built similarly to a VLF receiver (FET gate resistor 100 - 1000 megohms). After the FET, there is a 30Hz low-pass filter and DC - 30Hz amplifier stages. The obtained signal 0 - 30Hz is recorded on the phone or computer. The recording should be listened to with 60x ... 100x playback speed. Inaudible frequencies become audible. For example 30Hz x 100 = 3000Hz and 1Hz turns to 100Hz.
@ingussilins6330 I keep thinking about it yes of course. I was searching for schematics the other day 😁😁
I'm an LF guy, but VLF is fun, too.
Lately I started to like them all. They all have something interesting 😁. 73, YO6DXE
да, победителю будет чем себя развлечь холодными зимними вечерами))) ну а в VLF диапазоне помимо шумов природы есть и что послушать, диапазон 10-30кгц забит плотно военными и дальней навигацией, можно детектировать и наблюдать за грозовыми разрядами и грозами... а есть еще резонансы шумана.....)))))
Indeed lots to build over the winter hahaha. I will do the same also. On VLF and ELF.. ohhh I am getting more and more excited about it 😁😁😁. 73, YO6DXE
@@dxexplorer советую посетить страничку Technical Library, если про такой еще не знаете, возможно найдете там для себя что то интересное)))
@@dxexplorer у Technical Library есть немало интересных и простых схем на данную тему и не только)))
VU3TNL EDARA VENKANNA,INDIA
73, YO6DXE
Is this the final and updated version of VLF?
Yes. O won't change it anymore unless people want me to replace the big potentiometer with a smaller one.
@@dxexplorer where is the schematic or diagram then.
www.pcbway.com/project/shareproject/K8TND_VLF_Sferics_Receiver_VLF_Natural_Radio_778dc1aa.html
@@dxexplorer thank you very much for the schematic,It is the same as in earlier video. If you need a simplest one transistor regenerative VHF receiver's schematic then tell me I will get you.
@kanjitramchiary7183 its a little diferent comparing to the first version as I placed the RC filter on the input to get rid of the AM broadcast band interferences. I may change the design a put a smaller potentiometer instead to be easier to fit in small enclosures. We will see.
Is this board for ham radio users only?
Not necessarily. Anyone can build any of the projects from the PCB boards. Of course the only thing is that if you build one of the transceivers or the transmitters... you cannot transmit unless you have a license. But you can always play around with them in a dummy load if you still want to build them and test them to learn things... and one day when you do have a license... to use them on air as well. But many are ok for people that just listen... the mini whip antenna dor example... or the Sputnik regen receiver... or the K8TND sferics receiver.. cool stuff to keep you busy over the winter 😁.
Hi my friend. Have you watched the latest video ? You are a winner in the 5K subscribers giveaway. Please follow the instructions in the video so I can mail you the PCB boards. 73, YO6DXE
@dxexplorer iam kerala india
Greetings from Brazil! De PU1OWL, Rafael
Greetings from Romania. 73, YO6DXE
Salut, nu cred ca e nevoie de modificari la potentiometru ca un pic de "surubareala" din partea constructorului nu prinde rau. Cel mult cateva idei de abordare si atat. In rest felicitari si succes in tot ce faci.
Multumesc mult. Hehe da si asta e drept. Da pai mai sunt si multi care nu prea se pricep la surubareala si nimeritul gaurilor pe panoul din fata da deja destule dureri de cap ))). Mai am un pic de mesterit, dar am pus un potentiometru mai mic si un jack audio de se instaleaza direct pe placa. Mai putine fire de lipit )). Poate pe seara urc design-ul nou. 73, YO6DXE
Congratulations. I love your videos. Eric K7EBR
Thank you so much. And thank you also for watching. 73, YO6DXE
Congrats! You're already on your way to 10k subscribers! N7ANH
Yes and I still didn't pick the winners for 5K 😅😅. I kept postponing hoping to finish the N1TEV receiver.
Maybe you can do a tutorial on how to take a schematic on paper and the steps on how to make it into a PC board on PCBWay. I want to do this but really unsure how to do it....I'm sure I am not the only one! 73, Anh N7ANH
@AnhLe-xd8lp have a look at a fee videos behind... I have two videos on this... one for the schematic and the other one for the PCB board 😁. 73, YO6DXE