Yes, I've had that experience too, but a) Bryan said that the noise is dependent on the volume control position, which would suggest C21 - before the volume control, and b) usually there is an obvious

I am trying to use this VFO as the basis of a 80-10 Mhz transceiver. I don't seem to be able to set the offset value for different presets. Once the offset is set it for 80 meters with a 9.000mhz

I had this same issue with my QCX+ after I built it. Replacing C22 resolved the problem. 73, Bill NZ0T

Hi Mike, since you're using Windows, you can forget about the references to Linux ports, such as this "/dev/ttyACM1" or similar. It's going to be COMx, where x is specific to the QDX in your

Julian, All the test points on all other ICs were at 000.2 mVac. Then IC10 Pins 1 and 2 were at a baseline of 10-15 mVac with crashes going up to the 35 mVac range. Like you said the reaction time of

OS is W10 COM is (I think) what it defaulted to at startup. /dev/ttyACM etc is per instructions in manual Mike

BT speaker: yep, we can certainly talk more about that. Scope: absolutely, you'll be glad you did. My first was a "USB oscilloscope", an Owon VDS1022I, which uses a Windows app for the user interface

This looks like an interesting possibility as I do have Bluetooth seekers lying around. I might need some details about where to use this, and more importantly where NOT to. I might just pop for a

Yes, as far as I recall and that is about the only difference. Hans' instructions work in Windows. 73 Alan G4ZFQ

Andrew, I don’t see where you state the issue/error you are trying to resolve. Let us know and maybe someone can help. 73, BrianB N6CVO

I bought a ready built QCX+ a few months back and after a few days of faultless operation it developed a weird fault involving very strange noises - digital pulses audible and horrifically loud

Mike, "COM1" is a Windows serial port, while "/dev/ttyACM1" is a Linux serial port. Let's start here: what OS are you using ? -- Julian, N4JO.

Very nice. Reminded me of Christmas Eve 2020 when I built mine. Sadly, that particular radio is presently broken after a short circuit was created between the drain and gate of one of the PA fets....

On the little Settings gear you can slow down the video. Look on the bottom edge of the window, near the right hand side.

QDX is built. Rx /Tx working. RF output slightly low: 9V supply, no reverse polarity protection diode (yet): 20m 4.5W Est. Efficiency 66% 30m 4.5W Est. Efficiency 54% 40m 4.4W Est. Efficiency 63% 80m

But this video has wiring and some impressive repair technique, when there are not a lot parts in your junk box. It is mostly wordless workshop, but you can turn on English subtitles

If it's legal in your country to work certain countries then by all means do so. If have your own reservations then spin the dial. Simple !

Hello Martin, I had ordered 2 chips with firmware. That was actually unnecessary because you can access the latest firmware and program the Atmel. The chips together cost $17.58 = €16.27. FedEX

Just a bit off my own Topic Have a look at your QSL cards especially the older ones and try to find out about the reason for many special callsigns nowadays and then rethink if our hobby really is off

Hi, Martin, The third invoice arrived yesterday. It follows the same scheme as the two previous orders I placed at QRP-Labs. In that respect, there is no irregularity. :-) All three went through