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Hi Curt That board must have taken some kind of hard knock during transit. We will send you a new board - but it will likely have to wait until the next batch because I don't have boards now. The

Hi Curt I did see your email and I will get back to you shortly. I am dealing with very high workload at the present time. 73 Hans G0UPL http://qrp-labs.com

Hi guys, I received my QDX early last week. It was under order number 50038. ?When I opened the package I noticed that IC6 was lying loose in the box with some of the traces completely removed from

This sentence in the translation took my attention and I would like to ask a related question. It may be a silly question since I haven't bought and got familiar with the device yet, but what I'm

Julian, Good advice on the winding.? I would add just one point, get two different collar #28 AWG enameled wire, and use that to help in the identification of the coils.? You can use that wire for

You just saved me so much time, thank you!! I'm also experiencing this, only on 20m.? It happens all the time for me so I thought I hadn't soldered C29 or L12 correctly.? I was about to start

So to elaborate on that, and on winding the trifilar transformer in the first place, this is what I did, expressed as instructions... Stage one. * First, cut *one* length, *three* times as long as

Maybe asking your son for a gift certificate would be a good idea. I assume you could use it for a QDX or any of the other fun kits Hans sells. I just received my QDX today, along with a big list of

You bet! Shoot me an email and we'll figure something out ? -- Ryan Flowers - W7RLF MiscDotGeek - QRP and More (Website) ( http://miscdotgeek.com/ ) *QDX* News, Tips, Build Series (YouTube) (

Ryan - you up for a sked? -- John AE5X https://ae5x.blogspot.com

My 22g wire arrived today, T1 is rewound and installed. I tested the little riglet on all 4 - no, 5 - bands and had QSO's on all of them. What a great radio - lot's of fun! Here are some numbers you

It depends on the item with the largest thermal mass. For a grounded pad that's definitely the best way to go, but for a half mmm copper wire you'll be there all week and liberate the pad. In any

Not even slightly.? The filters are resonant, meaning that they both reduce harmonics and boost the fundamental. You could consider that the filters take the energy off the edges off the square wave

Syd. Can you bypass the filter with a wire link straight to the antenna socket then check the RF output? It should confirm if the problem is in the filter or not. Ian VK2GL

Hi, yes I saw it many times after switching band when testing the finished QDX. I used the "CAT command test" in terminal mode. I happened to be listening to the audio and watch it on a

All this is nice and does make a lot of sense. Unfortunately for me, after constructing the kit and then trying to adjust the turns on L1 - L3, I don't get a response to the power output when I

From Hans's UTube tutorial on aligning the LPF I might make mention to that part of the tutorial where he specifically tells the viewer to add/remove turns to the toroid according to whether one gets

This is a wonderful little radio.? Very sensitive and seemingly "bulletproof".? Very good build instructions.? Just a bit over 5 Watts output at 9.5 VDC. Well done Hans. 73, N4TVC, Randy

I got this when switching from FT8 to WSPR. The fix was simple enough - either change bands and then return to band of choice, or do the same with a mode change. -- John AE5X https://ae5x.blogspot.com

Based on Hans's record with other kits, notably the revisions of the QCX, I expect that all the current known issues with the QDX will be resolved on the Rev 2 board. The inductors will be replaced