Abstract: This paper discusses the fundamental principles of a cognitive-radio RF system. The key points required to achieve a true cognitive-radio device are outlined. The operation of a ...

The Tehachapi Amateur Radio Association is proud to announce that Micah Martin, the club’s public information officer, has been awarded the ARRL Philip J. McGan Memorial Silver Antenna Award, a ...

During the ice storm of 1998, power lines and transmission towers in Quebec and Ontario collapsed under layers of ice, taking out communications and leaving millions of people stranded without ...

During Tuesday’s Angelina County Commissioners Court meeting, county emergency management coordinator Ricky Conner presented a proposal to install a HAM radio system for communication when cellphone ...

Coil64 is inductance coil calculator, that allows to calculate the single-layer and multi-layer air core inductors, the ferrite core inductors or chokes, planar coils on PCB etc.

The club meets on the first Tuesday of each month. Check in with the Laramie Area Amateur Radio Net for announcements and/or see calendar above for specifics. The club participates in the Laramie Area ...

UPDATE 8/6: AST SpaceMobile has responded in a filing with the FCC, arguing that it designed its satellites to "mitigate interference" with amateur radio bands. Original Story: AST SpaceMobile and its ...

AST wants to use the 430 to 440MHz band for a satellite-to-phone service. Ham radio enthusiasts say the company's plan is vague and could interfere with their slim slice of spectrum. AST SpaceMobile ...

A 49-year-old woman and her 9-year-old son who found themselves stranded deep in the dense Stanislaus National Forest late last week left a trail of handwritten notes that helped their rescuers locate ...

Indian astronaut Shubhanshu Shukla will today (July 4) interact with the country’s students using a ham radio from the International Space Station (ISS). Here is a look at ham radio, how it works, and ...

It’s a hobby with a responsibility. That’s how the 80 members of the Steel City Amateur Radio Club in Collier view the skill, science and enjoyment of participating in ham radio. “It’s a fun place to ...