While digging around the avrfreaks.net forums, I found this very interesting tidbit in a message from a gentleman who was working on using an AVR microcontroller for SAME decoding. One poster mentioned using the Goertzel Algorithm as a way to perform tone detection on a sampled signal. The algorithm is supposed to be simple enough… Read More The Goertzel Algorithm
No luck in making it to FD this year. Had some more important things come up at the last minute that took priority, so I couldn’t take the time out for FD. After seeing some of the comments about how welcome the slower CW ops were, I’m not too sure it wasn’t for the best… Read More Field Day 2008 a Bust
So it looks like I will be heading up to Stub Stewart State Park to spend some Field Day time with OTVARC and some of the hams from Tektronix. Seeing that the current forecast is for temperatures near 100° in the valley (it may not be much cooler up in the mountains) and that my… Read More Field Day 2008 Plans
I’ve had a large collection of BF998 dual gate MOSFETs sitting around in the junkbox for quite a while now (acquired from KE6F), but I’ve never really known what to do with them. I feel like I own a fairly decent library of QRP/homebrewing literature, but there seems to be very little detailed information on… Read More Dual Gate MOSFET Investigations – Biasing
Wayne McFee, NB6M has created a custom PCB for his variation of the MARC LC Meter, along with providing a kit of parts. I just received my kit yesterday and was very eager to build the thing, since it’s one vital piece of test gear that I don’t yet have. Stuffing the PCB according to… Read More pQRP LC Meter Kit
Terry, WA0ITP asks on qrp-l.org: With a low Solar Flux and a double digit A index, it’s time to hunker down and melt solder, snort rosin, and burn fingers. I’ve got a half dozen unbuilt kits, an oscillator, single ended mixer, and an audio amp all destined to be a DC receiver (hopefully). An 80M… Read More What’s On Your Bench?
Now that school is done for the summer, I’ve finally got some time to put into finishing the neglected final documentation for the Willamette transceiver project. Here’s what I have on the agenda for the document: Finish the final section, which includes operating instructions, mods, and credits. Fix a few typos and technical errors/inconsistencies in… Read More qrp-l.org Group Project Documentation Update
…is the graffitti in the men’s room composed of schematics instead of dirty limericks.