no load on the 3.3 volt rail, and it didn't occur to me to try the scope. I'll rig up a load resistor and hang the scope of it. -Justin N2TOH

I should have said I haven't been able to find a version of libusb0.dll that my 64 bit version of Windows 10 will install due to claiming it contains a virus. Haven't been able to find a download

Hi all, Have been working on getting zero drift and frequency stability on one of my U3S units. So far... - Added a small heat sink on top of the 27

With nothing else to go on, the only action I could suggest you could try is to disable "driver signature enforcement". I do NOT recommend you take that course of action (unless you fully understand

Hi Justin, when I have had something similar, I have looked at the 3v3 output with a scope.  An output higher than the input usually indicates an oscillation somewhere.  I assume you have a load of

One more data point - the signal generator seems to work just fine. Dan, n0da

Powered up 80 meter QCX and LCD looks good. First step in alignment is 8.7 Peak BPF, but when I select this option I do not hear a 700 Hz tone in the headphones, and adjusting C1 does not move the

What is the *exact* error message you are getting ? At the moment you are saying the equivalent of "My car won't start" (at least you have given the Make, Year & Model, that's a good start ;)

Doesn't work on the pro version though, already tried that. Sent from my Verizon, Samsung Galaxy smartphone

search disable driver signature enforcement and follow the steps there to install libusb0.dll I just did the process and installed the unsigned driver on my Win10 Home 64 bit computer. 73,

Did not work for me. Thanks for your suggestion. 72 George/W2BPI In a message dated 11/14/2017 2:54:35 AM Eastern Standard Time, enno.pf5x@... writes:

Hello Jim. I run AVRDUDESS with the USBasp or USBtiny on a windows 10 64bit machine. It can run on your machine. Kind regards. James.

Jim, Does the Arduino appear as a USB device in "Device manager"? Has it a driver? Zadig http://zadig.akeo.ie/ should install libusb with a certificate, it is usually used to assign a driver to a

Did you try using Zadig to update the driver? I have been using a Win7 machine to do my updates but may have to try this on my 10 Pro64 machine. I just watched a video of someone updating

I have a problem setting up to program the chip via the ISP interface in the QCX. I have successfully installed the Arduino UNO software & the AVR ISP sketch but due to the fact I have the Windows 10

Guys Before going too far off on a tangent about stability of magnetic materials and different core mixes etc. Let me state categorically, that permeability of the magnetic material vs temperature in

IMHO all ironpowder cores have same thermal issue . If located in an area where the temperature increases slowly as we power the device, the specific magnetic component changes its behaviour. While

Hi All, I don’t know if this is relevant, but I just saw a post on the QRP-Tech group which mentions type 7 toroids. When Wayne Burdick was initially developing the NC40 rig, he had used a type

Very last 2 JT9 transmissions of U3S19 - Thank you Andrew, G8DJF for your log file - 1324 -18 -0.7 3507 @ CQ N2NXZ HO99 1325 -20 -0.8 3506 @ 4161.9 58.712

If one uses #30 AWG wire, I don't find the number of windings to be troublesome for the 60 metre version, other than the counting of the turns - lol Stacking two cores on 80 metres would certainly be