Abstract: The cognitive radio (CR) is proposed as an optimal solution to solve the spectrum underutilization problem. Spectrum sensing is the first enabling stage in cognitive radio. The objective is ...

The software-defined radio has been allowing engineers the possibility of implementing operations on software that were previously only possible to be performed through hardware. With the continuous ...

Sometimes the best builds aren’t anything new, but rather combining two well-developed hacks. [Marc] was familiar with RTL-SDR, the $30 USB TV tuner come software defined radio, but was surprised no ...

Have you ever wondered what’s happening in the invisible world of radio waves all around us? From the music playing on your favorite FM station to the Wi-Fi signals powering your internet connection, ...

The SignalSDR Pro is a Raspberry Pi-sized SDR that brings a credit-card-sized twist to software-defined radios (SDRs). It is a compact, streamlined device suitable for tasks ranging “from signal ...

Raspberry Pi’s new RP2350 microcontroller is a small cheap chip that powers the Raspberry Pi Pico 2 and other inexpensive development boards. Released earlier this month, the RP2350 is a major upgrade ...

There is a new breed of RF receivers known as software-defined radios, and they are revolutionizing the way in which people listen to shortwave (SW) radio, or indeed any form of radio broadcast. SDRs ...

We may receive a commission on purchases made from links. One of the biggest reasons that the single-board computer known as the Raspberry Pi has become so popular is that its price and performance ...

Who would have thought that Raspberry Pi, the maker of the tiny, cheap, single-board computers, would become a public company? Yet, this is exactly what’s happening: Raspberry Pi priced its IPO on the ...

2 USB 3.0, 2 USB 2.0, 1 microSD card slot, 1 USB-C for power, 1 Gigabit Ethernet, and 2 micro HDMI 40-pin header isn’t color coded On the face of it, you might think the Raspberry Pi 5 is the same as ...

The Radxa Penta SATA HAT is a $45 add-on board that allows you to connect up to five SATA hard drives or SSDs to a Raspberry Pi 5 to create a network-attached storage device for use as a file server, ...

A U.S. computer storage company has calculated the irrational number pi to 105 trillion digits, breaking the previous world record. The calculations took 75 days to complete and used up 1 million ...