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Marko, There is an outstanding video on You Tube by W2AEW Alan Volke on winding trifilar toroids https://youtu.be/a8ViWS61hsU In general, all the videos by him are highly recommended. 73 de k1jbd

Thanks for the words of encouragement, Joe! I'm counting on communities like this to push me when I get stuck :) I'm going on the line that for whatever circuit I don't understand, I will just have to

Thanks for the input, Evan! I saw them on the schematic of the HFSignals device. You think I'll be fine winding 10 trifilar turns on the cicruit? 73 Marko 4O6MAG

Wow what a undertaking for someone who is not even an EE and you seem like you already are familiar. Bravo ?? ?????? Joe KD2NFC

The same basic circuit for the HFSignals uBiTx has 10 trifilar turns on the toroid.? Here is a picture of a number of them on the board: Hope this helps. 73 Evan AC9TU

Hi all! Thanks for having me in this great group of people! I'm a ham for some years now but I don't have much experience in any aspect. Since I'm a medical doctor and not really formally educated in

they need 10,000 vents as of now. we need to be sure of availability of what components we use. I am thinking of using the PC or phone as a backup via the USB port of the Arduino. - f

-Dave-AD0B ..? What keys do you have in stock.. I am interested in shifting a little of your stock to cash for your ventilator project

That and we don't need a sub group! Vince.

Vince Agreed. Now that the ventilator group has formed and is becoming more active, there does seem to be less need to keep the topic active on the BITX20 group. Arv _-_

Raj I looked at sub-groups some time ago relative to a different project. At that time I found some things that I did not like, but maybe I need to take another look in light of the current situation.

I have just a really nice 2m loop made by a ham, so my experience is very limited. For this reason if I were to choose, I would try a design from a company I trust, which is called ParElectronics. Il

Hi Rene You mention you get a "peeeeep" when you transmit. Is this coming from the receiver you are checking your signal on? If so are you using headphones with the receiver? It could be that the

Maybe there is someone in your area with some experience, who could help you?? It's tough trying to figure things out for yourself, especially if it's something new to you.? (I don't know if you've

Hola, Yes you can use 13.8 Vdc I do wiTh great success. The Arduino is powered by a separate 5v regulator, so the higher voltage will not affect it. -- 73 Mick VA3EPM

Rene, ik heb een uBITx v5 met Nextion en dat werkt prima met digitale modes onder de nieuwe firmware KD8CEC. Geef niet op want het is een prachtig leerzaam apparaat. Succes -- PE3ES - F4VTQ - Erwin 73

Hi Vic, thanks for the link. That looks like PVC that is used for speaders is that correct? How is the sensitivity on the low end? How about the capacitor is it fairly linear or is it really twitchy?

Check it out.? KK4DAS builds a superhet:? https://kk4das.blogspot.com/2020/03/dean-kk4dass-furlough-40-ssb-rig.html

Ola Rubens Escreva para mim.... py2ohhARROBAyahoo.com.br 73 de py2ohh miguel

I have one of these portable loops that covers 3-17mHz and up to 25w. That is plenty of frequency coverage at this point in the solar cycle and the power of a uBitX. http://doxytronics.com/ =Vic=