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Ronan-- Thank you for the cool tip on the case.? I was about to delve into butchering a 200mm by 300mm double-clad board and do all the fiddly soldering to get non-88* joints, when I remembered that

Why do I say this, good question... a) I have a switch on the U3S output, switching this on and off has no effect at all on the strong signal I hear on the receiver. None at all. b) Disconnecting the

And some exoplanetary photo's so we can picture how its wired is worth a thousand words? Another Alan....

Chris, Why do you say that? No reading on a power meter? What voltages on the BS170? Local RX does not need an antenna, a strong signal will be heard just from leakage from the Si5351 even with a dead

An odd one this, but I have been at this for weeks. The U3S appears to be transmitting through the shield of the Coax, not at all through the central conductor.?? I have buzzed everything out. No

I just have to comment. These cases are very well made, and the accessories included make the QCX very enjoyable to use. Just got my second case yesterday for my (yet to be built) 40M QCX. Andrew

Oh, one more thing...try reseating the microcontroller in in socket. --Al

Gary, This sound like the original QRSS transmitters, not the U3, U3S or QCX. Sorry, but I haven't looked at the schematic and have been doing QRSS with a U3S for the past year or two.? Forgive me if

Hello Ronan :-) Trust your 2019 has been as planned so far. Wondering if you are yet able to provide further details and code (ATiny 85) of your QCX tuning aid? Looking forward to hearing from you

My personal, *un*-definitive view is Multi banding a QCX is an interesting challenge. (Making something do things it was never designed or lends it's self to easily to do.) There is no single recipe

Can anyone (or Hans but would rather not distract from his QSX efforts <smile>) provide definitive feedback regarding points mentioned by Simon VK3ELH? Advance thanks for any replies. 73 Nigel ZS6RN

Hi Gary. This could be one of many things. I recommend that you first go through the trouble shooting procedure shown here http://qrp-labs.com/qcx/qcxtrouble.html And follow the procedure related to

Can anyone advise? I built this little kit a few years back & it worked well. Then suddenly started sending a dead signal. I dont know why & never got around to it at the time due to kidney failure.

How funny! I also received my case from Germany today. I already have one for the 80M QCX, so now I will build the 40M version. Andrew K6STN Sent: Wednesday, April 17, 2019 10:50 AM To:

Hi I am not saying good or bad.? When I get the kit done and install it I will know then. I favor the metal case over the 3D print cases I have seen. It may be a little quieter from radiated

This article.

I have been thinking about this, bought some parts but have been distracted by other things. My plan was to abandon the bpf, replace with a broadband splitter like in the qrplabs receiver, use a

Big thanks dear Hans! I wrote you a mail.

Sorry to be a bit thick here but are you saying this is good or bad????

It takes very little power to spin a fan fast enough. Here i have picked off some RF into the load and rectified it (photos 2 and 3. ) The toroid turns do affect the impedance a bit above 30 mHz, but