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Just got my official (tr)usdx this week as a birthday present to myself and have made cw, digital and Ssb contacts already . In fact, I even made a DX contact SSB on 20M with France from Seattle running just 5w and the built in Microphone on the sdx! Qrp guys efhw sloping from only about 15ft. Incredible little radio so far

Love your channel! I just received the (tr)uSDX and am putting together my power pack, antenna etc. Is there a .pdf or similar file that has instructions? I found your site with the sheet that has which buttons do what, but a .pdf that we could print out showing each function and the recommended settings would be amazing. Keep up the great videos! Can't wait till all my stuff arrives so I can head out and have fun....with beer!

Very good result of efhw baluns. I think you had better wound 3 turns reduce to 2 turns for the primary of balun. Look at the most right for the input power of 10 meter at 27 line. it is less than another band input power. the primary wound will good by increase widing turns at low frequency band. but high frequency band will bad responce. Thank you.

Thanks

Excellent video, Jan. I'm starting to learn about the fundamentals of magnetic toroids and how the various properties affect what. Ive run across your and Colin's work while poking around on this topic on CZcams. I'm pretty early on the learning journey, but is the primary benefit of improved "core efficiency" that of less core heating at a particular power level/duty cycle, so the transformer has higher power handling capability? Less RF energy transferred to the core would mean that more can make it to the antenna, but a 10% bump or so in efficiency wouldn't be practically discernible in the real world.

thank you Manuel- i am waiting on my unit to arrive in the next few days- your audio is good!

Is it appropriate, given these things are placed in cars and whatnot, if we have invested in taking the time to do this tuning, to apply adhesive silicone to the coils in their exacted states? Also, what setting were you on with those measures? And can you refer me to the HAM book on where the harmonics should be? I thought I had purchased a pre-built kit, but realized I did not. My IC7000 is in the shop, and feel, that with the solder station and careful effort, I can likely assemble it myself. But I have to admit, there is a lot of tweaking I am witnessing in these videos. I want to thank you for the time you have invested in this series that even gave me a snowball's chance in hell of getting this close to correct. 73 KJ5ECS

Last time I took a Sawyer filter on a hike, it didn't work. Not a single drop of water would pass through it. I'd used it on another hike, but the water I filtered wasn't particularly bad, as I recall. I'd only used the filter on that one occasion since backwashing it. So it seems that storing these filters in a slightly used condition can lead to clogging. Therefore, I am not a fan. If you have to backwash every time you use them to avoid clogging then they require too much maintenance for me.

I am a new subscriber, just discovered the radio and will probably be purchasing it, you are a great Elmer!!! Great sense of humor!!

Since you've run water through the 2nd filter, you cannot let it freeze or it will be ruined. As the water inside freezes, it expands and creates gaps in the fibers, which could allow bacteria to pass through. They can be kept in freezing conditions as long as they have never been used.

Great video - I have the Grayl and extra filters. What a wonderful series!!! Thank you!!! We have the same bottle color =) 73s from Texas!!!

What a cool video!!!!!

Your research has convinced me to look at other sorts of water purification than small filters. Thanks.

Thanks, coincidentally I've been looking at the life pen. Water filtration pen. Have you tried these ones? Thank you for all you do!

Printed it out and it's great! A VERY nice little knob - thank you!

my onboard speaker too low..

You *MIGHT* try experimenting with the value of that capacitor on your transformer board. *73 de AF6AS*

Thanks for this! Well explained and I love the try it and see approach practically. 73 de VK2AOE

A tip, if you change the encoder, use a plum type encoder instead a half axle type, it fits better for any type of knobs, 15mm length is nice for small knobs.

Back in Black! Well, or back in green and black! You are looking good man!!! Happy to see you back!!!

Hi Manuel, sehr cooles Video. Ich habe mir bei Retevis exakt das selbe Mike gekauft. Wird die nächsten Tage hier bei mir ankommen. Dort ist dann ein Stecker (Kennwood Norm) dran. Hast du an deinem Mike einen neuen Stecker, also 2x Klinke dreipolig 3,5mm angebaut? Oder kann ich den Kennwood Stecker nutzen und über Klinkenkabel von 2,5mm auf 3,5mm gehen? Oder muss ich in jedem Fall zwei neue 3,5mm Klinkenstecker anbauen weil die Beschaltung zum TRX eine andere ist? LG aus Berlin

Excellent work. Best regards SP2CG

Hello Manuel Dave G4NOW in Greenwich London, thanking you for such a brilliant demonstration. It’s so good that you are making videos again. I missed them! Keep them coming - what a clever idea is your tr(u)-sdx. Would love to see a summary video to bring maybe latecomers to date with a hi-lights and updates timeline. It’s been a fascinating story of development all the way. All the best Dave

Though of this befelore, yes, it is so logical...👍

Thank you, Manuel! But how many times should the model be enlarged when printing? It turns out very micro)

Genial a imprimir

I think that you can not transmit on 60m portable, it is forbidden, only for base stations...😂 not sure of it

The SSB audio quality sounds intelligible...I'll order one of your radios, if it passes muster, I'll include it my emergency comms package. Great idea to keep the radio as a true emergency shortwave transceiver, just in case other methods of communication fail, say because of an EMP blast

great demo!

Geht das auch in Deutsch? Danke

Subtitles in your own language? Enable Subtitles in Settings (Cog wheel) and enable Auto translate. Thank you Manuel! 73 Seán

Great video Manuel 👍🏽 good to see the usdx to usdx. Looks like you need to update the firmware and the encoder knob 😉 73 mate

I really enjoyed watching our CW QSO! I highly value the support of our local community. Thank you, Manuel, for the kind and motivating words!☺Considering the (tr)uSDX, I was really impressed of the SSB modulation. There was a very low noise level at my location, but you also sound great at other participants ends living inside cities.

Hello Manuel, thank you for your new video and of course also for responding to the wishes regarding SSB contacts. Of course, I know that the (tru)SDX was not designed for SSB operation and that the signal processing in SSB is done in a completely alternative way. I think it worked great for that. Congratulations on your successful deployment. So far I only have three contacts in SSB with the (tru)SDX. The audio reports weren't particularly good. My QSO partners thought there was something wrong with my microphone. There was talk of “distortions” and “harsh” audio on my part. What I noticed, however, is that the sound is also extremely different on the reception side. In your video, for example, the IC-705 reproduced your audio extremely well and others, despite the good field strength, didn't reproduce it so well. Thank you Manuel for sharing this emergency radio test with us. Good job. I'm continuing to learn CW... but I don't expect to get an accident-free CW QSO this year. I'm already working hard on myself and I'm probably not a natural at it. ;-) All the best and stay healthy, 73.

DL2MAN wears the same outfit all the time. Me too haha , my signature pants have everything I need in them and boom every morning ready to go .

Thanks for making this one! 😊

I received my (tr)u-sdx a long time ago, but have not had a chance to play with it. My plan is to pair it with a smartphone running an FT-8 app and use it for digital mode POTA / SOTA activations. Thanks for all your work on this little radio!

I don't understand the German (except for the counting) but I love this demo! So many variables tested, bravo! Once I have my licences I will be ordering a (tr)uSDX

I have done mine. It’s a great add. Thanks

Success! Thank you Manuel! 73, KF6IF

I have made exactly two (2) ssb contacts with mine using internal mic. Got decent audio reports. Conditions were optimal both times.

Always good to hear from you. I've been following the CZcams reviews of (tr)uSDR. Seems like txcvs that cost ten times as much work a little better. Thanks for making amateur radio accessible.

Where did you find the amplified microphone speaker that plugged into the truSDX? Could you share manufacturer and model number please? Also did it work without modifying the connector? Thank you!

I like my big knob! 😊

Is this magic? Is this nanotechnology? How did he do it???)))

German engineering!

Great, I have already done it. I found another one on thingiverse…👍🏼

Great! It might actually fit in my kit now.