"I live in a valley and there are mountains they go 45 degrees up the horizon on one side. So I thought they'd be useless. And really, the IR is a crutch for everyone until they can get gyros working. But, after seeing some data Dean posted in the…"

"Take a look at these pieces for study as it's similar: http://www.rcgroups.com/forums/showthread.php?t=843174

I'm still working on it, but currently I ended last summer thwarted by two things. The first was gyro drift. Inside the cockpit of my…"

">>on some RC-forum i seen info, that 5HZ modules using real 1 Hz and extrapolation<<

All GPS tracks a ~10MHz chip stream to determine the relative timing of satellites. At any time, the hardware can tell you within a fraction of the chip time (~100…"

"There's no standard for part marking. You will only get a pin 1 designator. From there, you have to refer to the spec sheet. Your LED did have a pin 1 designator. You just don't know if pin is is anode or cathode :)

If you use a sot23 LED, you'll…"

"Jacob, i've not just had visions, I've seen it actually happen :)

I've used an altitimeter with a 200 mS sample rate (5X faster than GPS) and a standard deviation of 1.2 meters on each reading (probably 5X better than GPS) and an autopilot could…"

"For something to be patented, on criterion is that it needs to be non-obvious to someone "skilled in the art". I'm not sure moving from absolute to relative markers is non-obvious."

"Terraserver is pretty good, and doesn't have the heavy-handed terms of service that google and microsoft have. It also supports several web service interfaces and has always been very fast for me when using the webapp interfaces."