Experimental receiver for VLF. I received electromagnetic (radio) signals between 14 and 22 KHz with a capacitor of 4,7 NF over the showed coil. The schematic is identical to that of the storm detector IV (with the 6088 Tube), the coil is differently constructed. There is one more transistor...

It’s been a great summer and now we’re back to kick off season 2. In this episode Tommy brings us another great photo tip. This one’s about using your camera’s RAW mode. Jim shows us part one of his recent capacitor building adventure. And George demonstrates the weird ways that some...

The guys are back with more tech and entertainment for the all purpose geek. Jim talks about the OSI and Packet Sniffing with Ethereal. George teaches us how to solder like a pro. And Tommy’s ‘Camera Raw Files(The SQL)’ demonstrates some neat tricks you can do.

We’re back with the Active Cantenna to finally do some range testing. Thanks to Amateur Radio and a couple of video cameras, we put you right in the action. Ride “Shotgun� with Jim as we test WiFi’s advertised 3002 range. We were pleasantly surprised…. There are more great web sites...

I recently visited Lyme Regis UK. Like all good hams I took along my wireless kit. I setup my FT-817 and MP-1 vertical antenna and worked some PSK-31 DX. I shot this with my Canon SD750 digital still camera using the video mode. It worked pretty good. Several times I had to empty the memory...

On Saturday, April 21, 2007, The University of Tennessee Amateur Radio Club (UTARC) flew an experimental weather balloon to test an APRS transmitter and on-board video. The following is a 10 minute highlight video of the flight from pre-launch, to launch, ascent, cutdown, descent, landing, and...

This is the WD0AKX 10 meter ham radio beacon transmitter on 28.2235 Mhz running around one half watt power output from Albert Lea, MN. The camera used is a Kodak Zi8 in 720p at 30 fps.