Great job with the mod's David! I am also planning to make a review, but my uSDX has a huge delay due to chips shortage in China, so I am still waiting for delivery.... Congratulation to your QRP DX contact ;) Enjoy the QRP and hope to meet you on the air one day. Best 73, Paul OM0ET
I'm halfway done building the original DL2MAN's project, which is fun but very challenging. All that design piracy drama aside, I'm glad this project is being commercialized in a quite acceptable form. Due to the price point, It will enable literally thousands of hams to try hf! Thank you for the great reviews!
Hi David! A lot of thanks for video and shows modifications of transceiver. I have selfmade USDX in 3d printed case with lithium battery inside. With output transistor RD15 device have power nearly 7 watts on all bands (SSB mode). Thank you so much! 73 de UB6HJO!
What a joy to see someone under the age of 50 who knows their way around a mill and lathe. In UK such things were banned from schools many years ago and so most of Gen Y and Z in Britain can't even change a lightbulb. 73 EA5HQ PS, I just ordered one of those radios, even though I own a FT817ND and IC-705, these look like excellent lightweight devices for beach, bike, suitcase and hiking. And, cheap! Watch out Yaesu & Icom!
Great video David, nicely done on modifications to the rig. and kudos on that long haul qso into Canada.that was Prima! nice little rig. I am little to old to climb hills but do work QRP from home and chase POTA?SOTA and just plain old QRP'rs. love the concept have for over 40yrs. 73 gud dx! thanks for sharing! de Ellis WA1RKS
But please support the original Designer. There will be a brand new german version from DL2MAN just search.... It is cheaper and a lot better than the chinese one ;)
Nice. I am thinking even before it arrives to change the connector also. I did this to the G90 by modifying a BNC connector (can't remember the dimensions but the holes match the SO239 style used in the G90 and this uSDX radio that you showed. I hope ;-) ) Thus I avoid having to machine up a modification plate for it. . . . Most QRP radios use BNC. I haven't figured out why folks think that going over 5W requires using an SO239 ;-) At least we can modify stuff to meet our needs. . . . Again, nice video. Danke!
@@QRP.lifestyle Thanks. I found some BNCs with four holes and a square mount that I modified down to have the same footprint as the SO239. Got a batch and modified them all, so that now I have a BNC on the back of the G90 and a BNC on this Chinese clone. Also working on some mods for the LPF set of this radio. We'll see how that works out ;-) 73 de W8IJN
Very interesting video David. Just a couple of comments. To lower the tax output level, try dropping the TX drive. I'm sure that will help. In the CW setup, there is a call sign. I bet if you change it to your call, and play around it will send an auto CW ID. Loved your workshop 72 ZL1LC
Hello from California . Do you know why when I use the tuning knob it works backwards . When I tune forward for a station it really goes back not forward. Would appreciate if you could give some insite. How to fix the problem Thank you love ur youtube channel. Ki6pxv .Rodney lamay
WOW What A good Video series of the uSDX QRP. 5:18 in the video About the Soldering.. I was thinking perhaps it was A good ide´r to re solder it ???? Now i´m sitting here and Crying. Because Denmark, Just changed The Import Tax from China. Before June 2021 There was no Tax on Electronic from China. And after Well You Get the Big Tax Hammer. I love your Video´s 73 de OZ3NO
@@QRP.lifestyle I Have Looked at it But and this is A Big But.. You have to solder Most of the Components in. And My Eye´s is saying NO LOL. But if I could buy it fully assembled from DL2MAN I would
Hi David good day I'm interested to buy this radio is this radio has a tx on 11mter(cb) band I'm sorry for asking this question tnx 73 wait for your answer.
I wonder how many hams are using Web SDRs to extend their listening capabilities, so that they can more-easily hear QRP signals from "distant" locations (where the remote Web SDR is much closer). For the other direction (transmit) they can of course use hundreds of watts. Just curious.
Marco, nicht der chinesischen Verführung verfallen. Hier die Messungen im Vergleich zum Original: ruclips.net/video/Q1bTomgTMhQ/видео.html Dein KX2 ist schwer zu ersetzen. 😃
@@DL1GKC Das stimmt, mein KX2 wird auch wohl nichts ersetzen können. Aber du weißt ja wie das ist, man kann nicht genug haben von diesen Tranceivern.. ja ich würde auch eher zum Original greifen, aber wie ich sehe wird das nicht verkauft, das muss man selber bauen 😉
Hi David thanks for the video. I received mine two days ago in Uruguay and I find it a very interesting transceiver. In CW it is magnificent, however it has been difficult for me to adjust the audio correctly in SSB, you have had to correct something?. Greetings 73 from CX2AM Gus
That Chinese copy has been tested by DL2MAN and he finds efficiency drops in the higher bands 10, 12..), for they chose an incorrect alternative for the FET, output FET.
Hi David. Next time if you will open transceiver can you please show to as how look all board with installing parts. Did you soldered and clean boards? Thanks for nice job. 73's Alex
ki6pxv hello i have the same tranceiver all checks out except 40 meters only puts out 1.5 watts .. do u have any ideas how to bring up the power on 40. thanks for input 73s ki6pxy rodney
@@QRP.lifestyle Do you know what output filter to check and where to get a new one ..or how to make one . Wow appreciate ur respond .....ps love ur videos...ki6pxv
Can you recommend a seller to purchase this uSDX. I have been ripped of a couple of times on eBay and would rather not use that platform to purchase products. Thanks for a very informative video. VE3 VWG
No the battery one is the same type but it depends on the matching of the antenna. I found out that the output power changes with the impedance. Realistic is 6-9W on the lower Bands and 2-4 on the upper bands
I was talking on 27.175mhz usb for some days ago, the distance was maybe 50-60 kilometers or so, and i got good results, on maybe about 4-5 watts. But i was on a mountain with a speakerwire antenna :) fm is not so great. But its not a 11 meter radio, so its just cool if it works sometimes on 27mhz you never know if it would work haha. Best regards from Norway.
@@QRP.lifestyle thanks, I was able to find one on Aliexpres that came with a charging cable and a microphone. Now the waiting game begins. Lol I really liked your videos of this lil radio.
Hello Nice video... I have 2 units like that with a problem no TX no RX only display and menus and noise on the speaker... Some one have the schematic diagram for this radio ? 73 from CT2GGX
Hi dear friend, please a question I have no LSB suppression when operating higher bands, very good USB suppression when operating lower bands. I have the other version usdrusdx with external microphone but they have the same circuitry.Please can you tell me something? Thank you very much!!👋👋😊😊
This is suppose to be a DIY not commercialize. DL2MAN developed this derived from QCX (Hans Summer) project which I build one. This one you bought is a Chinese copy that has no regard to the original designer. It is a shame.
In fact DL2MAN is not against chinese copies because he does not want to make money on this equipament, but he is against bad copies not respecting he's guidelines, as they are cutting corners, resulting in a dangerous "HF baofeng" full of harmfull harmonics. I've sugested Manuel (also my name 😂) to ask a decent manufacturer to produce this litle wonder. Not for the moment, but maybe soon.. ? Let's hope 🙏
![Lil Uzi Vert - Chill Bae [Official Music Video]](http://i.ytimg.com/vi/D7F42F_JM3U/mqdefault.jpg)
Great job with the mod's David! I am also planning to make a review, but my uSDX has a huge delay due to chips shortage in China, so I am still waiting for delivery.... Congratulation to your QRP DX contact ;) Enjoy the QRP and hope to meet you on the air one day. Best 73, Paul OM0ET
Hope to meet you too, nice for stopping by on my channel. I will do a lot more interesting stuff videos.
73 David DL1DN
I'm halfway done building the original DL2MAN's project, which is fun but very challenging. All that design piracy drama aside, I'm glad this project is being commercialized in a quite acceptable form. Due to the price point, It will enable literally thousands of hams to try hf! Thank you for the great reviews!
Thank you, hope to meet you on hf bands
For me the modding is as good as getting on the air. But seeing the hdr video of the countryside makes me smile from the heart.
Hi David! A lot of thanks for video and shows modifications of transceiver. I have selfmade USDX in 3d printed case with lithium battery inside. With output transistor RD15 device have power nearly 7 watts on all bands (SSB mode). Thank you so much! 73 de UB6HJO!
The original is a lot better, I will build and review the brand new one
You're a natural at this! 72! Keep having QRP fun!
Nice video, thank you for sharing. With the look of many of the solder pads, I'm mildly surprised it works.
Me too
Nice job David !! Congrats from CE3THK
What a joy to see someone under the age of 50 who knows their way around a mill and lathe. In UK such things were banned from schools many years ago and so most of Gen Y and Z in Britain can't even change a lightbulb. 73 EA5HQ PS, I just ordered one of those radios, even though I own a FT817ND and IC-705, these look like excellent lightweight devices for beach, bike, suitcase and hiking. And, cheap! Watch out Yaesu & Icom!
Thanks, I'm a professional in manual and CNC, thats my Job ;)
Wait for the new German Version.
Gerne, die gibt's in jedem Baumarkt in der Sanitärabteilung
817 owner and I'm tempted as well!!
nice echoey audio thanks for the video
Danke David für das interessante Video
Liebe Grüße 73 DF3MT
Great video David, nicely done on modifications to the rig. and kudos on that long haul qso into Canada.that was Prima! nice little rig. I am little to old to climb hills but do work QRP from home and chase POTA?SOTA and just plain old QRP'rs. love the concept have for over 40yrs. 73 gud dx! thanks for sharing! de Ellis WA1RKS
Yes you do not need to climb on a summit, I do QRP alltime.
Thank you for info! Great little affordable device
But please support the original Designer. There will be a brand new german version from DL2MAN just search.... It is cheaper and a lot better than the chinese one ;)
Nice. I am thinking even before it arrives to change the connector also. I did this to the G90 by modifying a BNC connector (can't remember the dimensions but the holes match the SO239 style used in the G90 and this uSDX radio that you showed. I hope ;-) ) Thus I avoid having to machine up a modification plate for it.
. . . Most QRP radios use BNC. I haven't figured out why folks think that going over 5W requires using an SO239 ;-) At least we can modify stuff to meet our needs.
. . . Again, nice video. Danke!
You can prepair a plate.
Here the datas:
Distance is 1 inch or 25.4mm. Diameter to drill 3.3mm, inside 9.5mm for the BNC.
Have fun.
@@QRP.lifestyle Thanks. I found some BNCs with four holes and a square mount that I modified down to have the same footprint as the SO239. Got a batch and modified them all, so that now I have a BNC on the back of the G90 and a BNC on this Chinese clone. Also working on some mods for the LPF set of this radio. We'll see how that works out ;-) 73 de W8IJN
@@haramanggapuja sounds good
Very interesting video David.
Just a couple of comments.
To lower the tax output level, try dropping the TX drive. I'm sure that will help.
In the CW setup, there is a call sign. I bet if you change it to your call, and play around it will send an auto CW ID.
Loved your workshop
72
ZL1LC
Yes Im using it, check my new video
Awesome video, great work!
You might want to look at how clean the RF output is, particularly the harmonics. That's an easy way to cut corners.
I have no spectrum analyser yet :(
Good video thanks. Did you re-solder the oxidised joints and did that work OK?
No but I will wash the PCB with Ethanol
Hello from California .
Do you know why when I use the tuning knob it works backwards .
When I tune forward for a station it really goes back not forward.
Would appreciate if you could give some insite.
How to fix the problem
Thank you love ur youtube channel.
Ki6pxv .Rodney lamay
WOW What A good Video series of the uSDX QRP.
5:18 in the video About the Soldering.. I was thinking perhaps it was A good ide´r to re solder it ????
Now i´m sitting here and Crying. Because Denmark, Just changed The Import Tax from China. Before June 2021 There was no Tax on Electronic from China. And after Well You Get the Big Tax Hammer.
I love your Video´s 73 de OZ3NO
Please support the original one from Germany just look for DL2MAN
@@QRP.lifestyle I Have Looked at it But and this is A Big But.. You have to solder Most of the Components in.
And My Eye´s is saying NO
LOL. But if I could buy it fully assembled from DL2MAN I would
Hi David good day I'm interested to buy this radio is this radio has a tx on 11mter(cb) band I'm sorry for asking this question tnx 73 wait for your answer.
The bandpass is only for amateur
Tnx alot David 73s hope to hear in 40m. And 20m.
I wish it would do 11 meters as well.
Very good video❗️. 73. KV5P
What an awesome little rtx!
But the German original is a lot better and cheaper. Wait for it
Great job! 😃 73s de SM0MFC
I wonder how many hams are using Web SDRs to extend their listening capabilities, so that they can more-easily hear QRP signals from "distant" locations (where the remote Web SDR is much closer). For the other direction (transmit) they can of course use hundreds of watts. Just curious.
That is cheating 😉
Thank you.
Cool.. danke fürs Review .. kleine tranceiver kann ich nie genug haben 😀 .. 73 , DD6FM - Marco
Warte es ab es wird was originales geben
Marco, nicht der chinesischen Verführung verfallen.
Hier die Messungen im Vergleich zum Original:
ruclips.net/video/Q1bTomgTMhQ/видео.html
Dein KX2 ist schwer zu ersetzen. 😃
@@DL1GKC richtig ich werde meinen modifizieren müssen um lange Spaß zu haben. Kauft den Originalen
@@DL1GKC Das stimmt, mein KX2 wird auch wohl nichts ersetzen können. Aber du weißt ja wie das ist, man kann nicht genug haben von diesen Tranceivern.. ja ich würde auch eher zum Original greifen, aber wie ich sehe wird das nicht verkauft, das muss man selber bauen 😉
@@QRP.lifestyle wo kann man den kaufen Original ?
Hi David thanks for the video. I received mine two days ago in Uruguay and I find it a very interesting transceiver. In CW it is magnificent, however it has been difficult for me to adjust the audio correctly in SSB, you have had to correct something?. Greetings 73 from CX2AM Gus
Hi, no RX tuning is no problem in SSB
I said un transmission...but i put it on with the menu. 73
Goodent morgen. Is there any way to connect this usDX to a PC to use with sdr sharp software ? Cannot find answer anywhere.
Non idea
That Chinese copy has been tested by DL2MAN and he finds efficiency drops in the higher bands 10, 12..), for they chose an incorrect alternative for the FET, output FET.
ruclips.net/video/Q1bTomgTMhQ/видео.html
It was mine ;)
Hi David.
Next time if you will open transceiver can you please show to as how look all board with installing parts.
Did you soldered and clean boards?
Thanks for nice job.
73's
Alex
Yes I will do this next time
Спасибо, очень интересно.
Nice device!
Can someone tell me whether this rig can also be used to transmit on the 11m or EC band?
Yes but no filters it is not made for 11
You should connect your radio case to the fence behind you. You might increase your signal strength a little.
That will help yes 😀
Hello David,
what kind of function has the red button at the side of the TRX?
Thanks for the video, good stuff! :-)
It is PTT but please buy the german version
I'M waiting the post to arrive this qrp!!!
some about yours antennas?
This antennas are interesting
ruclips.net/video/PeVZFD07-xY/видео.html
@@QRP.lifestyle yes i have seen your video!
@@PaoloRendano just follow me I will do some antenna videos
ki6pxv hello i have the same tranceiver all checks out except 40 meters only puts out 1.5 watts ..
do u have any ideas how to bring up the power on 40. thanks for input 73s ki6pxy rodney
sorry spell check . ki6pxv
Yes change the output filter maybe wrong windings
@@QRP.lifestyle
Do you know what output filter to check and where to get a new one ..or how to make one .
Wow appreciate ur respond .....ps love ur videos...ki6pxv
@@rodneylamay5926 just change the windings
Can you recommend a seller to purchase this uSDX. I have been ripped of a couple of times on eBay and would rather not use that platform to purchase products. Thanks for a very informative video. VE3 VWG
No the most transceivers are bad
Hello David I ordered the same transceiver. For some it says 5 watts and in the description it says up to 10 watts. Are there different models?
No the battery one is the same type but it depends on the matching of the antenna. I found out that the output power changes with the impedance. Realistic is 6-9W on the lower Bands and 2-4 on the upper bands
@@QRP.lifestyle Danke David
awesome wow
Nice and intersting video ! Please do more video about this trx! Thank you ! 73 de yo8xcm
I will do
How does your TX audio sound? Mine is very distorted, no matter what I change in the menu settings.
Mine receives very well, but TX is not good. :(
If you watch my first video you can see a recording
What was the upgraded mosfet part number.
Do not know
Is it possible to talk to the citizen band in the 27 mhz band?
No filters for 11m
I was talking on 27.175mhz usb for some days ago, the distance was maybe 50-60 kilometers or so, and i got good results, on maybe about 4-5 watts. But i was on a mountain with a speakerwire antenna :) fm is not so great. But its not a 11 meter radio, so its just cool if it works sometimes on 27mhz you never know if it would work haha. Best regards from Norway.
Would it be possible for you to post a link to the radio you bought please.
Search for usdx on eBay or aliexpress there are many sellers
@@QRP.lifestyle thanks, I was able to find one on Aliexpres that came with a charging cable and a microphone. Now the waiting game begins. Lol I really liked your videos of this lil radio.
@@nickrupp2336 I will go to make another video today. Upload tomorrow.
Hello
Nice video...
I have 2 units like that with a problem no TX no RX only display and menus and noise on the speaker...
Some one have the schematic diagram for this radio ? 73 from CT2GGX
Very often big problems
Where can the "uSDX QRP radio" be purchased?
Please wait for the new one from germany. Watch my next video
@@QRP.lifestyle waiting for german vrersion !
Friend, it is necessary to have the talent to make a video about replacing the connector in 13 minutes)
good...
what battery does it have as i need one .. jeff..
About 4000
My Chinese copy of uSDX the menu system and rotary decoder is a POS!! /K6SDW
Hi dear friend, please a question I have no LSB suppression when operating higher bands, very good USB suppression when operating lower bands. I have the other version usdrusdx with external microphone but they have the same circuitry.Please can you tell me something? Thank you very much!!👋👋😊😊
This chinese rigs have a lot of problems. There will be a new original german version.
Please buy this german one.
Look for DL2MAN
It's a shame you swapped the PL connector for the BNC. This connection is very unstable and weak. But the rest is very cool and professional.
I really like bnc and it is now 10 minutes to replace back to PL
please show reception CW
In my next video this evening ;)
This is suppose to be a DIY not commercialize. DL2MAN developed this derived from QCX (Hans Summer) project which I build one. This one you bought is a Chinese copy that has no regard to the original designer. It is a shame.
I know this.
I'm in contact with DL2MAN, he has mine to measure it 😉
In fact DL2MAN is not against chinese copies because he does not want to make money on this equipament, but he is against bad copies not respecting he's guidelines, as they are cutting corners, resulting in a dangerous "HF baofeng" full of harmfull harmonics.
I've sugested Manuel (also my name 😂) to ask a decent manufacturer to produce this litle wonder.
Not for the moment, but maybe soon.. ? Let's hope 🙏
@@jplacido9999 It will be for sure
@@QRP.lifestyle 👍👍👍🙏
Your mill has a wobble.