This made me think back when i built Tank circuit, you hands/fingers really hurt, after a session of making an inductor and winding it through the plastic former... it is hard on your mussels :) Kudos!
Nice work. The auto capacitor tune has the makings of a good auto magloop tuner. You just need to be able to read the frequency setting from a modern radio that then sets the memorised capacitor setting.
Do you achieve perfect match on all bands? When I was testing similar design I've found, that it would be good to have taps on coil going to trx or/and have variable capacitor in series with trx coil. Did you measured it with VNA? What is inductance of antenna coil? Thanks!
Impeccable work. I am working on remote similar system but manual tuning. I would like to ask you a question with those values, what range of frequencies and impedances can you handle? thanks greetings
Thanks. I do not know the limits of this setup. My current antenna (2x19m, fed with 600ohm ladder line) has around 2k impedance at 80m. This tuner can match this antenna from 160-15m. 15m being the absolute limit due to coil size. Tried with a smaller coil, about 1.5inches in diameter, and if I remember correct, 10 turns, and a 3 turn link, I could tune the high bands as well. Good luck with your build.
@@SA2CLC Hello, thanks for the answer. What you tell me is good information. I hope to do something similar and upload something about development to the channel. Interesting what reaches up to 15 meters good data. I don't know what I can achieve but I will experience HI. 73
Nicel done, simple but elegant! I'm currently building an Arduino controlled true balanced tuner (2 18 uH roller inductors and 2 variable air caps ) scrounged from 2 old Murch UT 2000A Ultimate tuners, and some 277VAC 3PDT relays rated at 30A I got online. I bought the 2 tuners at a flea market for $100.00 for both. Can you provide your Arduino code, I'd love to see it. Specifically how you saved the settings in Eprom. If you power the Arduino controller down are all your settings saved? Great design!
Thanks John, yes, I save the settings to eeprom. Send me an email and I'll post you the most recent mess of code for this one. My adress is on QRZ.com. My coding is like clearing the driveway from snow with a dozer, but it gets the job done ;D
@@SA2CLC I can appreciate that! I like to get it to work first then go back up and make it more efficient. That's where I get into trouble!! 73's W3BUW
Hi Tommy, great job A question that probably many have asked you - is it possible to have or share the software and a draft of the scheme. Sorry for the inconvenience 73 de T77BL Luca
Hi. Some weeks ago you wrote this: " I can share the crude software I wrote, and draw up a schematic". How??? ### A very, very good job. The coupler is not a problem (for me). But it doesn't help to watch the great video if you don't show any links for the control and for the Arduino software. What do I have to do so that I can recreate the controller? Many thanks for your response. DL2HY
They are plentiful on ebay. Lots of russian and ukraine sellers carries them. Search for "powerful rf antenna relay" or something like that and I'm sure you will find them
Hi Tommy, can you write me an email? I need your help in implementing a similar project. I have a doublet symmetrical antenna. Slawomir SP6DLO ssb@hot.pl
I closewound it on a piece of drain pipe, then spread the turns using a wooden mandrel to match the pitch of the holes in the plexiglass, then it's just a matter of threading it onto the plexiglass. Takes some time.
Without schematics and code you may as well throw the cover on it. The finished product becomes meaningless without the ability to understand what you did and how you did it. On the bright side it sounds cool when you run it.
Well done , Sir. It’s an elegant combination of vintage and contemporary tech. Keep it up!
A wonderful publication. Made reliably and efficiently. The Russian vacuum condenser came in handy. Thank you 73! from RA3ASA
Great work Tommy. Enjoy the homebrewing and hope to hear you on the bands.
This made me think back when i built Tank circuit, you hands/fingers really hurt, after a session of making an inductor and winding it through the plastic former... it is hard on your mussels :) Kudos!
Nice work. The auto capacitor tune has the makings of a good auto magloop tuner. You just need to be able to read the frequency setting from a modern radio that then sets the memorised capacitor setting.
Beautiful work, thanks for the demo.
Хорошо постарался молодец
Excellent project, well done
Fine work. A bit of pedantry: the proper SI abbreviation is kHz not khz. ... VK2KXL
Haha, yes, I always get that wrong :)
Thanks for watching!
Do you achieve perfect match on all bands? When I was testing similar design I've found, that it would be good to have taps on coil going to trx or/and have variable capacitor in series with trx coil. Did you measured it with VNA? What is inductance of antenna coil? Thanks!
Very very very good! Congratulations. 73 from south italy, Luca
Might I know the schematic of this awesome handwork?
Me too
An amazing piece of work!
Love it, construction looks fantastic. How many hours work ????
A quality construct!
Very nice and deferent work.
I haven't the knowledge but i must beald one cupler.Can you help me with the automatic cycle?
Incredible work.
Beautiful work!
Amazing project.
Beautiful, congratulations, Kev M0TNX
Excellent work!!! This is JZ04APO from Indonesia, 73
What a great job!
Impeccable work. I am working on remote similar system but manual tuning. I would like to ask you a question with those values, what range of frequencies and impedances can you handle? thanks greetings
Thanks.
I do not know the limits of this setup. My current antenna (2x19m, fed with 600ohm ladder line) has around 2k impedance at 80m. This tuner can match this antenna from 160-15m. 15m being the absolute limit due to coil size. Tried with a smaller coil, about 1.5inches in diameter, and if I remember correct, 10 turns, and a 3 turn link, I could tune the high bands as well.
Good luck with your build.
@@SA2CLC Hello, thanks for the answer. What you tell me is good information. I hope to do something similar and upload something about development to the channel. Interesting what reaches up to 15 meters good data. I don't know what I can achieve but I will experience HI. 73
Nicel done, simple but elegant! I'm currently building an Arduino controlled true balanced tuner (2 18 uH roller inductors and 2 variable air caps ) scrounged from 2 old Murch UT 2000A Ultimate tuners, and some 277VAC 3PDT relays rated at 30A I got online. I bought the 2 tuners at a flea market for $100.00 for both. Can you provide your Arduino code, I'd love to see it. Specifically how you saved the settings in Eprom. If you power the Arduino controller down are all your settings saved? Great design!
Thanks John, yes, I save the settings to eeprom. Send me an email and I'll post you the most recent mess of code for this one. My adress is on QRZ.com. My coding is like clearing the driveway from snow with a dozer, but it gets the job done ;D
@@SA2CLC I can appreciate that! I like to get it to work first then go back up and make it more efficient. That's where I get into trouble!! 73's W3BUW
and where to download the project?
Beautiful
Top demais parabéns guerreiros bazuka Foz do Iguaçu pr Brasil caminhonista também
Hi Tommy, great job
A question that probably many have asked you - is it possible to have or share the software and a draft of the scheme.
Sorry for the inconvenience 73 de T77BL Luca
Fantastic engineering but couldn’t help smiling thinking that the stepper motor sounded like Dracula opening his coffin lid! Sorry
Very nice job. Please can you share the arduino software?
Magnificent !
nice and beautiful!
👍 très belle réalisation
Looks great 73
Very nice! Why didn't you add a differential capacitor on the antenna side?
The capacitor is actually across the antenna to match high-z loads.
@@SA2CLC thanks you for this clarification. Have fun and good dx!
Hi. Some weeks ago you wrote this: " I can share the crude software I wrote, and draw up a schematic". How??? ### A very, very good job. The coupler is not a problem (for me). But it doesn't help to watch the great video if you don't show any links for the control and for the Arduino software. What do I have to do so that I can recreate the controller? Many thanks for your response. DL2HY
I'll send you an email this evening
@@SA2CLC Could You share me the code too?
Very impressive.
Everthing is OK good but I need project schema detail. Please
🏆Pure pefectione in all the ways🏆I love old school sistem(with some "new hellp" software,vacume tube and 3D printers🙂)!👍👍 73 from 🇸🇮 Boštjan *S50SI*🇸🇮
Thanks :)
wow. I would like to build that tuner for my large horizontal loop. Is there a link for the construction?
No, sorry. Google K1JJ tuner, to get an idea of the rf part. I can share the crude software I wrote, and draw up a schematic.
SPETTACOLARE!!!
Max power?
Nice job.
Thats an excellent piece of work.. where du you buy those fancy relays ?
They are plentiful on ebay. Lots of russian and ukraine sellers carries them. Search for "powerful rf antenna relay" or something like that and I'm sure you will find them
Thank you, ill look for that 🙂
Круто !
They've had this technology for DECADES! Harris and Collins both made them for the military back in the 80's. I used to work on them and the HF gear.
Hi SA2CLC, I would like to make similar antenna tuner, but I am a new to Arduino. Will you share your code?
Hi Tommy, can you write me an email? I need your help in implementing a similar project. I have a doublet symmetrical antenna. Slawomir SP6DLO ssb@hot.pl
I’d like to know how you did such a beautiful job winding the coil.
I closewound it on a piece of drain pipe, then spread the turns using a wooden mandrel to match the pitch of the holes in the plexiglass, then it's just a matter of threading it onto the plexiglass. Takes some time.
SA2CLC It’s a great piece of work.
GOOD
How is it working out?
So far no issues, spent 3 winters in a unheated barn.
Wow fuck this is nice
I think that It use CAT command and give SWR from RIG.
73 bye bye from Japan
Thanks, I have thought about that, but my coding is not up to the task :)
Without schematics and code you may as well throw the cover on it. The finished product becomes meaningless without the ability to understand what you did and how you did it. On the bright side it sounds cool when you run it.
This is perfect if you can share a bit about the software that would be great. Best 73s YU5KBM
1.21 GIGAWATTS?!?!!!!
Make me one..
$$$
vy nice de HL1KKC
73 DE IU2PYD