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Well measure it then - it's not hard. 73 de Andy

That looks like a defect in the lcd module, more specific between the glass and the pcb there's a "zebra strip" that connects the two. If it's not properly aligned or pressed down it will loose

Hello, Just finishing the QCX CW Transceiver everything looks fine, but i'm missing a line on the LCD display. Any idea's ? 73's Rinse

John G8FPN After thinking a bit more about Hans` QCX block diagram, there may be a possibility for AM detection with the QCX. It would involve adding an IF strip after the Quadrature Detector and

John G8FPN In Hans` QCX receive section the quadrature detector is so close to the antenna that it seems you would not have adequate amplification to drive an AM detector at that point. [image:

Arv ? Many thanks for your response. I have constructed many superhet type receivers in the past, but this is my first foray into SDR, so my knowledge on that is very limited at present. I know I

I got one like that in one of my kits. It measures 10K. it will be fine when used for the LCD contrast control. GL, Bruce N1RX

Hi Kent - thanks for the photo.? Print looks great.? This is the second one I've seen in white.? I think they look a lot better than my Henry Ford black. I think you're going to have a lot of fun

Thank you for that, G0FTD.? I was hoping to find out what the resistance value was, the reason I included a photo with the label, not for a smirky response.

It looks good Kent. Tim KB2MFS

OK, so first print is done, though I had some lifting of the brim.? Still dialing in settings and climbing the 3D printing learning curve, but it's a functional case! Thank you,

I have been chasing a transmit issue. Make sure that the micro switch key is not shorted closed, the key ja k not shorted closed. Look at the tx and sig gen lines feeding the pa to make sure that

No, when I power up my QCX, the LCD goes completely blank, BUT ONLY IF its taken out and put back again (while the QCX is powered up) it starts to display top row of blank boxes

Simas, the top row of blank boxes is, I think, indication the uP is NOT talking? to? the LCD. There is a lot of discussion? by the group on how to handle this problem. -- Wes AE6ZM Hereford, AZ

Ok, after a series of catastrophic events, I think that Figure out what's wrong. Here is what I discovered: If Atmega328p Can't communicate with Si5351A, it displays a blank screen. I think so

I have used this programmer for everything -

Hi 1. Have you adjusted the brightness control? 2. Does the display that works on the other QCX work on yours? 3. Have you fitted the mods

Hello, Building the kit was going along quite well. Of course I made some mistakes. I saw these during alignment. First I have to remove 5 windings from T1. Then I had trimmer R17 and R24 at the max

Maybe a connection problem leading to the lcd. Check and reflow solder joints. Also check inductors there to insure they aren't open. Curt

Hello, I've built the 30m version QCX kit. LCD is completely blank and the Si5351A chip does not generate any signal at all. The main ATMEGA328 Chip works fine (tested it by seating it in another qcx