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I completed, to the point of testing, the UBitx's receiver late last night. There is little for the builder to assemble and since the board/raduino minus a few discrete components such as the rotary

If you have a jack wired for a straight key you need another jack for the paddle.? Or you can make an adapter, which is what I did. Sketch attached: 73, Al, N1AW

Can I get on the list for 1 each of the kits. Let me know what I need to do on payment. -- Kn4ud ? Allen ?Merrell

Joe, I like some of the uBitX changes you are showing in your blog. Any possibility of seeing code for the TFT screen/functions, and the accelerating encoder step size? Thanks! Bob, N3FM Bob, N3FM

Depends on which one you buy. Some (most) require that you put a bootloader in via STLink. There are, however, a few on EBay that sell them with the bootloader already burned in. They cost a buck or 2

Here's a scan of my notes on making a microphone with the components supplied with the ubitx.

Can you program the blue pill thru the USB or do you have to use the ST-Link? Vince.

Kees, Can I get in on one each of these boards? 73 K5KDT Kevin

I'd add the diode should be after the fuse. That protects the wires from being burnt up is there is reverse polarity. One note: Clean the key contacts!? Seriously its a known problem since the

As an aside on power supply filtering, the stock rig has about 'none' and is very susceptible to power supply noise, especially power supplies with switching regulators. There's not much margin for

The word earlier this week was that uBitx were being shipped from stock; I jumped on this news and ordered one on Monday expecting to see a shipping notification in a day or two.? It seems my card

I did two things: flipped the regulator but left it about .2" above the board.? Check the raduino stck as about 50-55Ma far from enough to warrant heat sink.? At most its dissipating .6W.? This may

It appears those are just Gerber files, not design CAD files, so they'd have to be viewed in a Gerber viewer and dimensions made with the viewer's measurement tool. I might just as well grab the

Hello.? If not too late, could I be put on the list for one each of the boards/kits.? Thanks.? de NF5K

Just to clarify: is this ONLY for BITX40? If I have the uBITX, how would you know?? :)

The link in Nik's post points to a project at EasyEDA showing his board layout, has a "Download Gerber" button.? Though you will probably have to set up an account at EasyEDA to have the

1.4v is the base bias for the transistor. It is developed through resistors R61 and R62. If you have 12v at the TX point then the voltage at the base of the transistor will be (R61/(R61+R62+R66) times

I had a look at the links and there doesn't seem to be any CAD files there. I guess I'll have to break out the caliper and measure the stock board.

Thanks everyone for the help! Jerry, yes, I've been busy behind the scenes doing a lot of things with the control system. I now have the entire app running on an STM32F103 "Blue Pill" board, which is

Thanks Doug, your notes are very helpful. 73, Dennis W7DRW