These project make my eye google.. love them to the max.. can't wait for your FT8 or 2M projects, if youre still gonna do them...73s

@CharlieMorrisZL2CTM

Жыл бұрын

Thanks. I have a number of ideas on the books. I will have to have a think!

Hi Charlie! A work of art. That's what your beautiful layout looks like. It's like seeing the innards of electronics working! Fantastic stuff to learn and to teach. Terrific work. De VU2RJV handle Rajaram from India.

@CharlieMorrisZL2CTM

Жыл бұрын

Thanks. I have said many times that I like to look in and see what each module and component is doing. That's where I get my enjoyment.

wow just love your craftsmanship, enjoy the walk through..!!

Хорошая работа! Выглядит очень опрятно. Только выкладывайте схемы и другие материалы, чтобы зрители могли повторить.

Not only is this a good looking radio it also looks like it would be fun to use. Nice job! Tom ak2b

@CharlieMorrisZL2CTM

Жыл бұрын

Thanks Tom. I had it on air again last night and I am very happy with it. The new code is working very well, less noise and birdies.

What a nice build, Really Great ssb Radio. Hope all works well, I wish I was able to build this but being almost Blind and in my 60's won't happen, God Bless

I like that you resisted going the Arduino "menu" route and rely instead on rotary and toggle switches for your inputs. Menus may be necessary for portable rigs owing to limited front-panel space, but they're a totally-unnecessary bother for a stay-at-home rig. --Todd K7TFC

@CharlieMorrisZL2CTM

Жыл бұрын

Agreed. I like the look and feel of a real switch. Not to everyone's liking, but that's fine.

@dare-er7sw

Жыл бұрын

@@CharlieMorrisZL2CTM What if you used a 24MHz SSB filter? The front end would then need just one LPF.

@NOOTSMAZDAS

Жыл бұрын

I def prefer the old school approach really satisfying

This is the way.

Thank you for the information!

@CharlieMorrisZL2CTM

Жыл бұрын

My pleasure. I hope it was useful.

Nice project.

@CharlieMorrisZL2CTM

Жыл бұрын

Thanks. I'm enjoying it.

Hi another great video, thank you very much .... but I think at SSB the Bfo = Fop + Cf - 2400/2 - 300 and the Vfo= Cf + Fop , another thing to mention about cw from compatibility point it is usually an lsb signal and the screen show the carrier freq. not the tone freq. I think that will eliminate some confusion at some point when working some stations on cw .... keep the good work and looking forward for the next video

@CharlieMorrisZL2CTM

Жыл бұрын

Thanks for the input. My approach is to have the display show the actual CW freq. I will adjust the TX software to ensure my CW signal goes out on exactly the same freq. I did that for the tramping CW rig and it worked well. Thanks again and 73.

Hello Mr. Charlie my from Indonesia, i like your homebrew, and goodluck

@CharlieMorrisZL2CTM

Жыл бұрын

Thanks for the feedback.

Good job!!!!

Hi Charlie. Great video series, I have learnt a great deal from watching, many thanks. One thing I'm not clear about, what does the A/B switch do, is this to switch between CW and SSB?

Saya juga pencinta oprek radio suka dengan orang luar negri alat alatnya lengkap semua.tapi saya kadang nonton youtubnya Marconi Poncol Disitu membahas Radio Ombrow AM PWM dan buka chanel Bank Canare Ombrow disitu belajar Fm/Am dan perakitan TX RX.Salam radio master

Hi Charlie, thanks for your videos. I always learn something new ! Question, is the output of the Si5351 filtered? It seems to be fed directly to the diode ring mixer? I could not find anything in the blog regard this. Thanks for sharing all of this!

Muy bueno

Welcome to home brew

Hi Charlie, I've seen some of your videos and after looking at another QRP (based on Arduino) I got the NEEEEEED to build also one for myself (I have experience building and programming arduinos, esp32, raspberry and also tube amplifiers and guitar stomp boxes) but I don't now where to get info on schematics and their BOM to start. could you help me by pointing for what to look and study?

Looking good. Can't quite see in the video but the SI5351 outputs should be AC coupled.

@CharlieMorrisZL2CTM

Жыл бұрын

Hi Kevin. I have used both AC and DC coupling with the SBL-1, ADE-1 and TUF-3. I fond both work equally as well.

@technishn

Жыл бұрын

@@CharlieMorrisZL2CTM If running into a high resistance load DC coupling is OK, but with low resistance loads DC current is shunted towards the low resistance path via the Si5351 internals. A small improvement in Phase Noise gained. See QRPlabs phase noise article

Can it be rigged up for 11meter band?

Hello Charlie , Great video as always keep them coming we really do appreciate your efforts. What is the model of your sig gen? A siglent by the looks.

@CharlieMorrisZL2CTM

Жыл бұрын

Hi Darren. Thanks for the feedback. It the Siglent SDG 1032X. It works well for me.

@BOBRAPHTONEAFWATA

Жыл бұрын

@Charlie Morris , Wonderful setup ,I really enjoy your videos and impressive design . Do you have schematics in pdf so i can try and replicate too ?

Hey Charlie, another great video cheers - I lashed up some software to do the Transformer calculations just to simplify the repetitive calculations and I was wondering if you'd like a copy to have a play around with and see if you can break it, just before I release it to the wiser world. Cheers Rob M0XXQ

@CharlieMorrisZL2CTM

Жыл бұрын

Sure thing Robert. It's especially useful when you are making sure the XL is > 4-5x RL.

@M0XXQ

Жыл бұрын

@@CharlieMorrisZL2CTM cool beans, do you have an email address I can send details to please Charlie?

Charlie, Could you please identify the black stubby item attached to the Siglent AWG used for the CW test. I should like to get one to use with my own SDG 1032X for the same purpose. Graham, ZL1GH

@CharlieMorrisZL2CTM

Жыл бұрын

Hi Graham. It's just a stock standard 'rubber ducky' antenna. It works well. It also bends nicely if you accidently knock it.

I love it good 👍

@CharlieMorrisZL2CTM

Жыл бұрын

I'm glad you like it

Good

Hi Charlie is there any reason why you chose two crystal filers instead of one filter where you use variactor diodes to vary the filter bandwidth?

@CharlieMorrisZL2CTM

Жыл бұрын

No Chris. I did have a think about using varacter diodes, but elected to have two filters. I wasn't sure if I would still have to have two different terminating resistances to get the right passbands. I really should give it a go as an experiment.

@chrisherd991

Жыл бұрын

If you look at the circuit of the Elecraft KX1 it is done there. This radio is not just CW on the RX side hence the variable B/W filter.

make a usdx sdr on an arduino mini

Can you please publicate scheme? or upload google disk

@CharlieMorrisZL2CTM

Жыл бұрын

Yes, everything is up on the blog at: zl2ctm.blogspot.com/

Hi, would you eventually consider putting all these parts on a single PCB?

@CharlieMorrisZL2CTM

Жыл бұрын

Probably not. I like the modular approach and having the rig all open. Each to their own.

@brianharper9798

Жыл бұрын

I also like the modular approach, say if you want to maybe try a different IF amp or something, it just makes it so easy to just swap it and try.

🙋👍

Would like to share a ckt idea. Mail?

@CharlieMorrisZL2CTM

Жыл бұрын

It's all on the blog at: zl2ctm.blogspot.com/

Send This radio To Me Please !

E

*MUCHOS CIRCUITOS,ESQUEMAS,PLANOS,Y EXPLICACIONES,PERO EN 30 MINUTOS DE VIDEO,NO FUISTE CAPAZ DE HACERNOS ESCUCHAR COMO FUNCIONA?????* *INEPTO!!!!*

Very cool... RF is tricky

@CharlieMorrisZL2CTM

Жыл бұрын

Thanks. I enjoy it.