A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the ...

Abstract: A circular polarized 4x4 element 4-port antenna in the 300 GHz band was designed and fabricated. Antenna gain of more than 10 dBic and axial ratio of less than 3 dB were obtained at 285.12 ...

Raspberry Pi 4 and the latest Raspberry Pi 400 share the same Broadcom BCM2711 processor with four Cortex-A72 cores. However, the Pi 4 is clocked at 1.5GHz and the Pi 400 can go up to 1.8GHz. So it’s ...

Canadian positioning sensor developer Calian GNSS has launched two advanced antenna solutions designed for precision navigation applications: the HC3990XF housed full-band helical antenna and the next ...

Raspberry Pi Zero 2 W-based 3-antenna switch for HF (100W), controlled via Flask. Uses ANMBEST 4-channel relay (active HIGH), Freenove Breakout Board HAT, and SO-239s in a DXE-UE-2P box with Alpha ...

From a raw performance standpoint, the Raspberry Pi 5 completely outclasses the Pi 4. Going from Arm Cortex-A72 in the Pi 4’s SoC to Cortex-A76 cores is a big jump in its own right as these cores are ...

If you’re having issues watching KOB 4 with an antenna in southern New Mexico, it is because strong winds knocked the dish out of alignment on our Socorro microwave. This microwave transmits the KOB 4 ...

Explore four antenna calibration stories from phased-array algorithms to mmWave breakthroughs to OTA testing that are sure to delight you. Antenna calibration, according to our friends at A.H. Systems ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Originally defined as the ratio between the circumference of a circle and its diameter, pi — ...