They come in 3s, yes. Any multiple of three is a valid order quantity. This is an artifact of how they manufacture the boards. These boards are small enough and hence cheap enough it hopefully won’t b

I’ll add my design to the pile of other great (possibly better) options: https://oshpark.com/shared_projects/UgGbx3qS Note that mine is only good for QRP power levels, or a receiver. -Mark

Ground loops are a major pain in the *^{%. Connecting to computers only adds more parallel paths to make loops. I’m running into problems measuring current draw from my DC supply because Power is find

Thanks to your two suggestions, I just ordered a couple myself. Thanks! -Mark

This gave me a good chuckle... :-)

The Nano can work at anywhere from 2.8 to 5.5, so it’s not phased by seeing 3.3v on it’s input. I2C is an open collector bus, meaning none of the devices on the bus actively drive the bus high, they o

Define “not working?” Do you still get any output on the display? Do you get any audio out the speaker at all? Also, what did you attempt to do when it stopped working? What instructions were you usin

#bitx40

+1. Just updated Casa de KR6ZY.

SSB is one of the two side bands of an AM station. The dial indicator for an SSB Signal is the frequency that the AM carrier would be if it hadn’t been filtered/canceled. You should be able to hear an

Perfect. :-)

To be fair, I think it’s just an OLD version, not BUGGY. But that’s a distinction without a difference here. It doesn’t work to compile our code, so yeah. Just defending the Debian maintainers a Littl

Having been a Linux admin for 24 years (not an exaggeration; my first Linux was Summer 1993), getting features released into mainstream builds of software can take YEARS. Distributions often err on th

Let me know how they work out for you. :-) -Mark

The board can use SMT or throughhole. SMT caps and inductors are 1206. Caps will also accept 5mm spaced pins. Inductors are FT37-xx (xx=43 for the ones I’ve made), but I’ve also used the axial inducto

If anyone else wants an AM broadcast filter, I made some boards for that: https://oshpark.com/shared_projects/UgGbx3qS That’s a high-pass filter. I also made: Low-pass: https://oshpark.com/shared_proj

Yes, I have several of those around the shack for kits that have no preselection. But the BitX40 shows no change with or without the BCI. The BitX40’s bandpass is enough to block out AM broadcast. Sin

This. This is why we kit. Appliances have their place, I’m not an appliance hater. But this is why we kit. :-) -Mark

I was able to decrease, but not completely eliminate, the 15kW AM station about 3mi from my house, by putting a .1uF from sweeper to ground on the volume pot, and a 1k in series from the sweeper to th

Purchased, and retweeted. This is awesome. Thanks, Ashhar! -Mark

In the US, I’ve been really happy with OSH Park. Not necessarily the best prices available, but all fab’d in the US and fantastic support. http://oshpark.com/ -Mark