Using the LMC555 CMOS analog timer to set a frequency from < 10Hz to > 100kHz, giving this design a strong dynamic range but ...
The society originated from local "hams" who provided backup communications for Wellesley during World War II. A vibrant amateur radio club has been serving Wellesley and surrounding areas since 1951.
When it comes to electromagnetic waves, humans can really only directly perceive a very small part of the overall spectrum, ...
IEEE Spectrum on MSN
Explore the stratosphere with a DIY pico balloon
A tiny ham-radio transmitter lets you track a balloon globally ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results