[Lindsay] has a wonderful writeup about a new toy in the shop, an ultrasonic transducer. The 28kHz, 70W bolt-clamped Langevin transducer by itself is not much use, you need a power supply ...

Fish finding systems are critical for maritime fishers, and the transducer is what makes these devices work. To get the best results from a transducer, though, you need to put it in an optimal ...

Here's how to shop for an ultra-high-definition (UHD) display, plus our top picks from deep-dive reviews. Since 2004, I have worked on PCMag’s hardware team, covering at various times printers ...

it's good to know when the newest releases are coming out on 4K UHD and Blu-ray. You know, as long as you have a good way to play them (see our list of the best Blu-ray players for help on that ...

Every year seems to be a make-or-break one for UHD home media. The emergence of 4K UHD, offering about three times the ...

Bandwidth is the difference between low and high operational frequency limits. Rated signal power available from the transducer is another important specification. Transmit sensitivity is the ratio of ...

Looking to upgrade to a TV with a 120Hz refresh rate for next-gen gaming? These are the top options The best 120Hz 4K TVs are essential for gamers, movie lovers and sports fans. That's because the ...

We make an effort to celebrate not just what’s new on streaming, but what you can still own on Blu-ray or 4K UHD. Discs have better sound and image quality, but their real selling point is their ...

Zidoo has recently launched a new line of 8K media players, powered by the new Amlogic S928X-K chipset. This lineup includes ...

To learn about even more films and shows releasing soon in physical formats, check out our roundup of upcoming 4K UHD and Blu-ray release dates. There, we cover everything releasing over the next ...