T&L Publications

I follow this kind of stuff and don't know of a low/modest priced solution. Ocelot would be easy but is $150 or so. It exceeds the need in flexibility. http://www.iautomate.com/ocelot.html You'd wire one of its output bits to a manual relay or to the input pins of an X10 PowerFlash module. Or the oc...

I think you mean the devices that you use in a microprocessor circuit to provide a stable frequency for the microprocessor. Oscillator is generic term for anything that oscillates, like all of the below Oscillator (module) a small device in a metal package (usually) that is an oscillator. Usually em...

Today's analog signals are usually audio or video or some such that are use by a human's brain. The cognitive process tolerates huge error rates and noise. Not so digital transmissions. Not even in the same order of magnitude. However, comma, the brain can't cope with the information rates that digi...

You could make a covert gun out of most anything. Shoe, roll of life savers, etc.

these Atmel AVR based modujles are drop-dead easy to use and have a great compiler. Serial port downloads.

www.zbasic.net

whadda expect for $9/hr?

Actually, my experience is that about 1/8th of their store sales people know something.

Verizon is the only major carrier that has a lot of their system in the lower frequency 800MHz area - except for Nextel (now owned by Sprint). The other band is at 1900MHz. The lower freq. has much better building penetratoin and outdoor range. A few cell phones have an external antenna connector. Y...

I say we're hyper-over-connected with them.
But they are a godsend for automobile emergencies.

neat-o. I esp. Like the bracket to hold the tube in its socket.

now that's Modularization!

Surely it was half a lifetime ago!

The spirit of HAM (amateur) radio is for public service (e.g., parades, drills, emergency) communications, and when that's not needed, HAMs are to use the spectrum for learning and enjoyment. The Part 90 regulations and personal ethics (remember those?) prohibit for-profit uses of the HAM bands. Ste...

In the late 70's, I and several others at my company designed/built a micro-coded computer that emulated a PDP-11's instruction set, and the instruction set of a company-proprietary computer for industrial process control. (It ran CBS TV for quite some time). In that time frame, it was quite a chall...

And Garmin's OEM products. Easy to use. They look like a hockey puck.

some on eBay or GPSworld.com

The flavor of BASIC for this seemed too crude to me. For example, all variables are global. Hard to write a non-trivial program. No bytes or floats as I recall. Not a structured basic language as you'd expect for an ARM, as compared to the really nice compilers for 8 bit micros like the Atmel AVRs.....

first order challenge is battery power/life, assuming your device is untethered.

blue laser light is sometimes used. Acoustics more often, like pseudo-random codes for high correlation gain and operating with a poor SNR