This is an excellent review! Really appreciate your pragmatic perspective on this!

Just ordered one of these radios! Thanks for sharing.

Nice little radio. I look forward to see how it is on FT8. Thank you for the review!

New Radio Day is always the BEST day!

Fantastic info - thanks for the review!

Good video,thanks🇺🇸

I built mine from a kit. Not had time to try it out fully. Waiting for a case to arrive, and a cable, plus modding a microphone and making an amplified speaker! On receive it is pretty good.

Great video. Good rig for digital and CW.

As always, thanks for the detail TO; mine is on order. I have the same question as you, "where does this fit?" For the price, I decided I didn't care where it fit; the cool factor with the price is just to much to pass on.

Great review! I ordered a pre-assembled one last week. I appreciate the suggestion on the amplified speaker - went ahead and ordered that as well. Plan on using a lightweight linked dipole (20/40) - should pair well with this little rig. Always enjoy your videos. 73 dr AE6FE

That QRZ radio does go through the menu without going back to the main screen each time. Just push the main tuning dial to set your menu items and turn the dial for the next item. When the menu gets to the last item and you push the tuning dial then it will return to the main screen

I ordered mine! I'm definitely swapping out the power connector to power poles though

I keep flip-flopping on picking one up. Thank you, for the great in-depth review.

Cool little radio to keep the glovebox. Hey what with the Packard Bell? 2, 3, or 486?

there goes another $150 😀 looks awesome. thanks for the vid! gonna rock some POTA once it comes in.

Nice review. I just got mine on Saturday. I had the same display issue with the SWR/Power not showing. Found out by accident if you press the PTT several times, it will then display. Also, I found out by holding in the tuning knob you can adjust the volume up and down, and continuing to lower the volume you can turn the radio off. Pressing the Menu button turns it on. And, I wasn't aware of the steps for tuning advances by tapping on the tuning knob so thanks for that info. Nice to meet you at Dayton briefly. 73

Yep. Nice little box. Took mine to the most recent POTA activation I did but never got it out of the bag. Field Day is this coming weekend. I'm gonna have to give it a real run through & see how well it does there. Tnx for the nice video. 73 de W8IJN

I get that same beeping on the internal speaker on the one I built today.

Nice demo.. I’ve been looking at theses different styles radios to throw in the gator and have with me as the dog and I are taking our leisurely rides around the hood.. thx for sharing. k0klb

Great vid

that thing is tiny and super cute! :) I think I'll add it to my wish list... not sure if I can see the small components to build it though. lol.🤓

Iambic A/B is different from key swap. The A/B has to do with what happens when you release the key, if there's an extra dit/dah. Keyer swap has to do with which of the key paddles is dit and which is dah.

Unfortunately the (tr)uSDX project is not open-source, but the uSDX project still is. Many continue to tinker with that project, which should be considered for anyone interested in mods and further development.

Can u add an amplifier?? Or on any other qrp transceiver?? 73 Mahalo and Aloha from Hawaii

I grew up 40mi SW of DBQ in NW IL & got my Novice ticket in 1979 & became KU9L in 1983, always liked QRP, and I built a Heathkit HW-9 in 1985 & got WAS 1W 18 months later. Now I am Ri Van Winkle getting back into the hobby after being downsized in aerospace. As a full-time RVer chasing 70 deg I am guessing I would LOVE POTA a lot considering we travel all over and manage 13 USFS campgrounds summers in Colorado while playing in AZ or FL winters. This looks like a cool rig to play with but my soldering days are over considering I became very burnt out soldering those pepper flake capacitors on black boxes in development over the years. Considering a used commercial rig right now sells for 2.5x its former value I think going back to my roots of building kits is a good thing. Somewhere in storage, I have a couple QRP monobanders I built, no SW in them back then, unfortunately, LOL. 72 was cheers, Dave - KU9L

Awesome steve

Well, it is not really open source. The hardware kinda is, if you count CC as open source, but the software isn't. And this radio does most of the work in software, after all. The software is based on the open source uSDX firmware but for (tr)uSDX they only release the binary, without the source, and we do not know what changes specific for this project they did in the code. The project is still great, I love it, but that does make a difference for some people.

Have you tried using a Baofeng speaker mic on the (Tr)usdx? I have read other posts saying that it is possible to take the tiny earphone/speaker mic that comes with all Baofengs, cut off the headphone wire and use the rest as a tiny PTT microphone. Intriguing- but maybe too good to be true?

I share your excitement over this radio. perfect for mobile qrp operation. what antenna is best? that is an open discussion.

Kit is 96.00, assembled is 148.00 on eBay link. Some other colors as well.

Very cool

I looked a few times at how you were using the push buttons and it seemed that you were mostly pressing the Menu button to enter an option but later on you were using the Enter button. I'd be grateful if you could explain.

There is no way i could listen to that "fingernail on chalkboard" audio for $7.32.

Cool little radio.

Do you know what the SWR tolerance of this radio is? 1.5:1? 2:1? 3:1? Awesome video from a fellow Wisconsinite!

Did you make that powerpole connector or buy it? I need to pick one up. Thanks!

QRP SSB requires patience! FT8 is slow but it does get through.

Nice look at this radio TO.

Where does this fit in? PSK31 for me. It's the one digital mode of interest that my QDX can't supply. Of course I could just use the Yaesu, but what fun would that be?

To get the swr meter to work you have to key the radio in cw mode, it will show power output aswell

It's hard to break a pileup with 3w - glad you finally made a contact!

Ugh, and here I was trying to save money for the Sunshine Swapfest in a couple of weeks

Bought that one from the official reseller and replaced the speaker with that one which was recommended by DL2MAN LSF-23M/SC and I got way less issues with that one.

Great review/demonstration! Any idea of how to connect to Android device for easier access to menus and display as well as digital (FT8 etc.) modes?

I only have a g90 it can be difficult to get through a pileup at 20w

Guido just released a new beta version of the software, which adds a spectrum display (limited to +/- 32kHz of the set frequency) but removes AM and FM demodulation. So don't update if you have any use for AM or FM.

Its funny when I hear you say your name. For ages I thought your name was "Theo" misheard from people calling you "TO".

Sir I must say you and your channel information is so cool. Thanks for your time once again the information. KI5SPA

I see these offered on Amazon. Are these Chi-Com knock offs?

I have questions: 1. Where is the SWR displayed? 2. What is "Tx Drive"?

Maybe the outgoing audio would be better with a plugin microphone?

Technology....wow. I started with a HW-8 back in 79.

It's the exact profile as a Raspberry Pi in terms of size.

Open source .. NOT. I just had a discussion with Manuel after seeing something on his forum: First of all, the schematic and PCB files are open source, but the software is definitely NOT. Which is a sore spot for many of us, since it prevents us from being able to customize the radio for our own uses. One of his forum members asked (as I was about to, but thought I'd read the forum first) if the code for one Guido's previous projects (which Guido DID make open source) would work on the (tr)uSDX. Manuel responded, saying that it would not work directly, but if someone had some programming skills, they could probably get it to work. However, Manuel continued, this is not encouraged by himself, and if someone wanted to do that sort of "software rape" (yes, he actually used that word), they were on their own. A generally unpleasant fellow, considering that he wants to maintain absolute control over his design, which is based almost entirely on other people's actual open source work. There are plenty of other QRP rigs out there today: I would suggest finding a better one by a better class of Ham before spending your money.

What is the story on the Commodores? I had a SuperPET SP9000, Amiga 1000 and 2500, and still have an SX-64 luggable and an Amiga CD32. BTW did you know that Fred Fish ran the Amiga shareware library? 73, VE7VIE and WV2J

Neat

On " modes " you said it does AM, please show !

One has to wonder if the speaker only going to 11 is a spinal tap reference...

I'm getting one for Xmas..

I ask you a question, what is the cause of the hiss that was heard when you plugged in the speaker?

Trying to break into a pile-up with a 4 Watt rig isn't a good way to go. Sitting on an empty freq as you finally did is the way to go. BTW, I actually enjoy winding toroids, but then, I'm retired. I also really enjoyed tuning each band's toroids to minimize the 2nd harmonic and to tune the other toroids for each band to get the power just right and the efficiency way up. You can learn a lot about RF by tuning the output of a (tr)uSDX.

Manuel calls it the 'true SDX' because it was created to counter some very low quality variations coming out of China. Manuel and Guido made the original uSDX open-source so hams could do whatever they wanted with the design. Unfortunately, that was like fresh meat for the worst of Chinese clone makers, and they started producing radios with horrible efficiency and illegal harmonic content, if they worked at all. Now the guys have created this new variation to keep that from happening and are keeping tight control over the firmware, right down to an internal serial number. Ya gotta do what ya gotta do. The speaker feedback is a known problem, but they have found no resolution to the problem. They think some semiconductor might be picking up the vibration and creating microphonics, so just keep the volume down under 12 or use an external speaker, or headphones. Headphones are always best for weak signal work anyway.

So I am not the only one that talks back to the radio? :D 73 WA5SAT

setting for a straight key ??

For you techies, the MCU that is the heart of the radio is the same one as the *_Arduino Uno_* uses. Imagine if someone redesigned it to use a more upscale chip, like the *_ESP32_* which would add WiFi and Bluetooth for not much more money! *73 de AF6AS*

8bits if everything is idea is 42db and the useful bits are much lower. This is why the audio is not happy. This may have enough dynamic range to work digital modes effictively.

So I have to admit that I don't know what RIT is.

Looks good for the money, and very clever I'm sure. But I think I'll stick with my rigs that have real knobs and don't need all that faffing about in menus.

Too bad that they decided to install there a CH340G USB UART chip, but not a QCC5125 USB/Bluetooth UART/2-way sound chip! That'd turn the radio to become truly awesome digital emergency communication rig!

Can anyone identify the tiny speaker.

Cinque watt non direi...si va dai 2 watt a poco più di 4 a seconda della banda. Comunque bellissimo qrp. Ciao.

that background whine is annoying, does it always happen?

You should do a video showing how to wire up a mic for this little rig.

Sorry I didn't hear you. Heard you much better on the video and sorry you dont like the way I ran my activation DE AA4SS

Come one needs a haircut lol

Do not build it, just buy it built, trust me. I built 2 and they both failed, needing bootloader and updates and all the junk that was supposed to already be on it. I'm not a programmer so mine sit built and unused for want of programming. I'll trade 2.5 and extra parts for 1 lol tech special and all the torroids are wrapped correctly as I diagnosed them several times over! Grumble...

Thanks for your nice Video. Hope you´re enjoying your (tr)uSDX ! 73 Manuel; DL2MAN

Very cool radio if your into QRP. 73 de Jeff K3JRZ