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Cleaning house to make way for other projects. I’m going to sell my 40m and 20m QCX minis in the aluminum cases. They were built by me and meet advertised specs. They work great and were used in

Great work Hans and thanks for sharing the milestone ! You and the crew do a great job trying to keep grumpy old men happy. 73, John KK4ITX Visit: www.zaarc.org. ?

Hi all Today marks the 5th anniversary of when the QCX sales opened in the QRP Labs shop, 21-Aug-2017. It's certainly been a very busy 5 years! The total number of QCX sales now stands at 18,239

Willie, I had that exact XKCD comic on my cubicle wall back when I was working. Appreciate the humor!? Mark K9TR

10 year old Mac Minis are killer Debian machines, so your MBP ought to work really well! 73, Willie N1JBJ

I had no problem setting up my old Lenovo 11e Chromebook to run Lubuntu Linux. WSJT-X, JS8Call and Fldigi all run well on it. I did need to take it apart to remove a screw that blocks the Chrome OS

BINGO! I was wondering when someone would point this out. Washing them spoils the 'seasoning'.? 73, -- Dave, N8SBE Quoting Mike Besemer - WM4B <mwbesemer@...>:

QCX Mini, 5 Watts at 13.8 DC. As new, works great. Includes a neat little stand attached to the back. $100.00 dollars shipped to CONUS. PayPal OK.

I say it makes no difference, the 300mA Digikey spec is in error. The referenced datasheet shows 500mA absolute max. -- Paul Elliott - WB6CXC

I have been searching for a Win10 or Win11 notebook with 12V supply, but did not find any. Does anybody know where to get one in Europe? Robert, OE7OER Von: [email protected] <[email protected]> Im

I think that you are dismissing the ?SDX a bit too quickly. I've just activated a 2500m high SOTA in the Pyrenees with the m0n0 ?SDX (in CW), it was very practical as when you go up every gram

I am looking forward to using my old Mac Book Pro for my QDX that is soon to arrive. My Mac Book Pro would not update past High Sierra OS. I reformatted the HD and installed Linux Mint and have

"We are desperate for any news regarding QSX. Right now it's just a glorified inductance meter/signal generator." The above is from a message on this board back in 2019, Has there been any real

I like the Chromebooks (I am writing this on one) but there seems to be too much of a problem in setting them up to do WSJT-X. I'd been looking for a low-cost way to use the QDX in portable operation

Hi all, I was excited about the way that my QDX performed.? But was quite disappointed with the RF filter scans so I went to discover the reason. I have measured the LPFs and BPFs separately.? And

Steve: Chromebooks can be incredible machines for the price. I have a modern one, my wife an old one and we are very happy with them. However, be aware of a few things: 1) most of the "deals" are

Actually not 20ns.? That would be just a propagation delay.? MOSFET's C_in is 280pF. Now I am using a 8k2 instead of 10k and a 680 instead of 1k at the MOSFET's gate.? So a quick calculation for an

John, Most of the issues with the LPF selection circuits are the coil connections.? For 20 meters, that would be L4 and L10.? When doing the LPF check, you need to measure both diodes (D3 and D6) as

*Correct, I left out the three toroids and four capacitors for the 50w amp onboard LPF.* *I asked Hans about this a few months ago and the *thinks* the toroids that come with his LPF kits would be

John, I'm having troubles working this out. Maybe it's me but the other half of the switching D1-3 voltages may make it clearer. 73 Alan G4ZFQ