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Assuming you have a have 2 spare IO pins.... (and I haven't looked to see if the PA needs a PTT signal or switches to TX when driven by some RF) 1. Make the user fit a link to indicate the PA is

Hi Mark At the moment I don't have an expected date for batch #3. The AK5386 ADC chip is now obsolete, following not just the ongoing global semiconductor supply issues, but also the fire that

Hi Hans, I managed to get a couple of QDX's on the previous order and a friend and I have loved the building project ! Thank you so much for your work !?On Friday I had wanted to get a QDX with an

Thank you Hans and his team for sorting this out so quickly 73 Nick Problem all resolved.

Hello Ronald Yes, you were one of the last to order, before the shop finally stopped over-selling. Which was only about 10 seconds after the actual stock hit zero. But evidently a lot could happen, in

Hi Ken My worry is that the 50W PA is a single band unit. The QDX is a 4-band unit. How will that work... The QDX band can be changed by the PC. If you built an external amp arrangement, that has to

Would some kind soul please send Dave a QDX kit or built and end this discussion. He would treat it with kid gloves, make a couple of very fine videos, and return it when done. All he did was ask if

Frequently my workbench is on my lap in my recliner with the TV on and the XYL complaining about my mess.? We live in a small 1940s era cabin on the shores of Lake Huron with maybe 1000 sq. Ft.? She

Dust, dust and more dust. But soon that will have to be removed to allow the QDX its day.

Hi all There are two different things that generate unwanted signals on RECEIVE (not on transmit): 1) Unwanted sideband cancellation. Where the amplitude of the I and Q channels mismatch, or the phase

I got a QDX in the first round, so didn't go for a second one. I'm working toward building a PSSST-20, myself. There's a groups.io group by the same name if anybody is interested. I also designed and

I also have no problem with people buying more than one, if they are either going to be built right away for the benefit of other hams or used in a group building project. Hans is not yet offering

I too have no issue with someone buying more than one kit knowing supply is limited. As long as they aren't trying to resell them for a profit. To me if I were to buy 10 kits for my club to build it

Laurence Nice bench, thanx for sharing pix.

That is a great idea, and many groups amateur radio related do require names and call signs with posts.John K0FTC

If we have just a few dudes that must wear masks oh well. Using one's real call adds real ham radio culture to their contributions. We'll one of the 3 we did unmask, hard to say if the other 2 have a

Dave that's fine when the supply is unlimited which will likely be the case with the QDX at some point as is became for the QCX. In the mean time, altruism would be each person only taking one.

Consider that someone who orders two kits might be building one for another ham who has neither the eyesight nor the skills to assemble the kit, but who is a complete FT-8 and JS-8 fanatic. Your

These days I suspect that expressing pity for someone would be considered a bad thing becasue it could be seen as condescending or patronizing. But when someone actually self identifies to a

For what it’s worth, I was a Dave Casler review of original QCX that got me started with QRP labs. John N0jt