Thank you, I want to get one even more now.

Very interesting. Thanks for your rewiew

Linas, thanks for in depth review! QRP Labs is an amazing company, they produce extremely capable products at absolutely funny if not to say ridiculous prices. I recently built QCX mini for 20 m band and it is a little gem, I don't know anything even close to it in capabilities and efficiency in this geometry and at this price tag. By the way, built the key from American Morse, it is nice and nearly indestructible, but by some reason I like the paper clip paddle more! :-)

Thank you, Linas, for this really useful video. On the basis of his I ordered a QDX. Can't wait to try it out. I like simplicity ! Your videos are always so professional and "to the point". I find them very motivating !

@fotografm

4 ай бұрын

I got it and it's great !

Good idea about resoldering the final transistors, it just has to work! 73 Stephan

"You do the inches." Big smile. As an American engineer, I am in complete agreement.

Excellent overview of the QDX Linas, thanks for sharing your experiences; kit has arrived and I'm now more confident in assembling and using the kit... fully agree on replacing the power adaptor with the Anderson Power Pole and - after viewing your other video on 9V - I will also use this power option and DC/DC converter. 73 Paul PA2PWM

@Linas_LY2H

Жыл бұрын

Thanks Paul and good luck! See you on the bands! 73! Linas LY2H

Hello Linas, I just bought the QDX today 5/6/2022 and it will be the version 3. I am looking forward to building the kit and operating FT8 and JS8 with it. Your review was very helpful and will be checking out the other videos a well. 73 Dave - KE6EX

@Linas_LY2H

2 жыл бұрын

Hello David! Thanks for watching and congratulations! I was also lucky enough to order v3 , so now it's only the shipping-thing left :) Hope to see you on the waterfall! 73! Linas LY2H

Thank you very much, please include schematics and descriptions of installing parts on the board in your channel.

I went ahead and placed order... very nice looking qrp transceiver for mobile/digital use. I like the idea of the power pole mod, but will most likely set up as 12v... all my power pole stuff is at 12v, and I don't like the idea of having separate 9v system. Maybe I'll change my mind before I receive the kit!

@Linas_LY2H

2 жыл бұрын

Congratulations! It seems like Version 3 is gonna be even more elaborate and nice than the V1 and V2! I’ve also booked one and looking fwd to comparing it with my V1. As it comes to the power supply, well, 12V is OK if you are happy with the reduced power output (3-4W at 12V vs 5-6W at 9V). While waiting for your post package you probably might be curious to watch this: kzread.info/dash/bejne/a5ijxNN-eNqfe9Y.html 73! CU on the digi bands! Linas LY2H

Thank you for a great video. I built my QDX and want to keep my carry load as light as possible. That laptop on the left of the video looks like the perfect size. Can you please provide hints on where to find one like it? 73s! -Rob

@Linas_LY2H

Жыл бұрын

Thanks Rob! The laptop/tablet PC is a CHUWI MiniBook model CWI526. It's an older model, there are newer ones with more powerfull processors now. I bought it directly from the CHUWI internet store. HTH, 73! Linas LY2H

@robertehartley9691

Жыл бұрын

@LY2H Ham Radio Van Hi, Well you inspired me again. I bought a Pinephone Beta and the clamshell keyboard for it, and rebuilt some of the code to get WSJTX running on it with my QDX. I still need to layout the GUI for use with small touch displays. So, it looks like I may have found a way to use Linux to be more like Linas. :) Cheers and 73s from Brisbane, -Rob

@Linas_LY2H

Жыл бұрын

Hi Rob! Whaw, that's impressive, the Linux phone for amateur use! It would be just great if you could share your results in a form of video or something, as many people ( including me) might get interested in that. Good luck in finalizing the project! 73! Linas LY2H

Thanks Linas great in-depth video of the radio. I want to buy a small laptop like yours what is the model please. I like how you fit the FT8 and JS8 Apps on the screen as it must only be a 10 inch maybe Regards Ian vk5cz ..

@Linas_LY2H

2 жыл бұрын

Thanks for watching Ian! I am seeing quite a few VK stns on my QDX waterfall recently, just my antennas and 5W are not enough obviously for you guys to see me :). But I'll keep on trying! The PC is an older version CHUWI Minibook , 8/128 +128 GB, 8". It turned to be eligible for and recently upgraded itself to Win 11 for free :). The screen is a bit too small for the WSJT-X since I can only see the fragment of the waterfall, but its enough for me :). JS8CALL fits OK. 73! Linas LY2H

@willian.direction6740

2 жыл бұрын

@@Linas_LY2H Thanks Mate for info. I check 40m my morning greyline on js8 and QSO to few eu ops. look out for vk5cz be happy to see you.

Can you please let me know what type of the laptom you are using? It is nice and small size. Thank you so much for this information. Have a nice day. Michal, OK1SIM

@Linas_LY2H

Жыл бұрын

Thanks for watching Michal! It's a win10 ( updated itself to Win11) 64-bit CHUWI Minibook laptop/ tablet. It's an older version, I think, there are newer models now. 73! Linas LY2H

Does the QDX operate RTTY (FSK teletype) ? If so, what software is used ?

@Linas_LY2H

2 жыл бұрын

Hello Peter! Yes , it does run RTTY FSK. It does require though, some extra settings in the QDX terminal. I have tried RTTY with my QDX V1 on my Windows 11 laptop with the Fldigi software. Tips by Peter G3SPL is of great value in setting up both the PC and the Radio for the RTTY. It could be found here ( a special chapter under the QDX topic): qrp-labs.com/QDX. Good luck! 73! Linas LY2H

I have one all ready to go. What antenna do I use? Should I get an SWR meter as well to be able to tune it?

@Linas_LY2H

2 ай бұрын

Hello Dag, congratulations! Hope, you’ll enjoy the journey into a digital world with your QDX. As it comes to the antenna, any antenna you have already will do. But one should bear in mind that the QDX has got no SWR meter in-built , so it’s got no over-SWR protection which would turn the output power down in case of the antenna mismatch. So I would highly recommend to use an external SWR/power meter which would allow you to control the SWR level and the output power comfortably at any time. Any SWR/power meter suitable for the low power of up to 5W will do. One of my favorite analog meters is featured in the video, and my favorite digital tiny meter is featured in my other video here: kzread.info/dash/bejne/m4yMxqeae5rVoLg.htmlsi=h4cnKkpUpl3I0sLb Due to the SWR-related reasons mentioned above, I would recommend to go for resonant antennas which need no antenna tuner, thus you don’t need to tune, thus, you are not risking to push your radio in the condtion when the SWR could become too high during the process of tuning, especially if you are using the manual tuner. With automatic tuner, the tuning is very quick, so the risk of over-exposing the radio to the high SWR is minimal, but, hey, you have been warned! As it comes to the antenna choice, there is plenty of resonant antennas, like monoband dipoles, multiband linked dipoles, trap dipoles, End Fed Half Wave antennas, multiband resonant vertical antennas, etc. It’s up to you to decide! Good luck! 73! Linas LY2H

@dagspicer7748

2 ай бұрын

@@Linas_LY2H What a wonderful reply -- thank you Linas! So I actually searched for a while on various sites (often via Google images!) and managed to locate that wonderful little SWR meter you show in your video -- I wanted the exact setup you have. I learned that it's an open source design by G8GYW and I found a great implementation of it for under $50 on eBay. I've ordered an Opek HVT-400B multiband antenna (with jumper-selectable coil taps). Can't wait to try this out... your videos are making that possible. Ačiū!

Is there anyway to turn this into a mobile radio, such as in your car? I wonder if there is a way to use a phone for the computer

@Linas_LY2H

10 ай бұрын

Hello Elliott, thanks for watching and commenting. Actually, any radio can be used in a mobile application, as long as you can provide right power supply and the antenna to it, if by mobile you mean just sitting in a parked car, not driving :) I like to take my small radios and a tiny lap-top PC and operate from my van or my car. It takes no modification to the equipment. As to your second question , yes, it is possible to use an Android phone instead of computer and operate in FT8 mode. You may check my other video for more details here: Pocket FT8 for Android! FT8CN app review with QDX transceiver. kzread.info/dash/bejne/d6GBmq2vYdi1f9o.html HTH, 73! Linas LY2H

Does the QDX respective the software support CW?

@Linas_LY2H

2 жыл бұрын

No, it doesn't. It only does digital FSK modes. 73! Linas LY2H

Which DC to DC converter do you use? Purchased or homebrew? Love your channel!

@Linas_LY2H

Жыл бұрын

Thanks! I don't recall what exactly was I using in this video, but surely it was one of the standard purchased dc/dc converters. Since some tome ago, I use a permanent in-line voltage conditioner with my QDX. It's based on a purchased converter in my own 3D printed case. I have a separate video on the 9V vs 12V debate with my in-line voltage conditioner described in detail. kzread.info/dash/bejne/a5ijxNN-eNqfe9Y.html Have fun! 73! Linas LY2H

can you use this with HDSDR?

@Linas_LY2H

2 жыл бұрын

It's a good question:) Unfortunately, I don't use the HDSDR , so can't make comments on it. What is said in the QDX operating manual (page 7, Note 1) is that QDX CAT commands should also work with other software then WSJT-C and JS8Call. But it doesn't necessarily mean , IMHO, that HDSDR will work with it OK. I guess it would rather not :). QDX is designed for exclusively FSK digital modes, nothing else. Are there anybody around this channel have tried this out? I'd love to know it too! 73! Linas LY2H PS. You could also try the IQ mode in the QDX with HDSDR.

Can it do 11m?

@Linas_LY2H

Жыл бұрын

Hi, as it comes from QRPLabs , it can't. But people discuss the higher bands options on the groups.io. A good place to put any related questions on. 73! Linas LY2H

9 cm isnt tiny its huge……

Sad it doesn't work winlink

@Linas_LY2H

2 жыл бұрын

Thanks for the info, it's interesting. Probably apps for Winlink are based on some other modulation types than the sequential FSK wich QDX is suited for. So , the JS8CALL might be the closest possible way to send messages :) 73! Linas LY2H

@herrwingnut

Жыл бұрын

@@Linas_LY2H yes. I have been running JS8 quite well!

AMD has ceased production of the old generation CPLDs and FPGAs sorry.