41 Responses to Gear Review: AR500 Armor Lightweight Level III+ Plates. 1  Nice review. I run a set of plates I bought from AR500 in a âhome defenseâ plate carrier (Grey Ghost Gear Minimalist) and theyâre great.
Report Abuse. Monitors have a refresh rate measured in hertz. If it's a CRT, you'll need to check your manual or Google your model number, but if it's an LCD, it should be sixty hertz. Many components within your PC also have an associated speed for which they can cycle between on an off (hertz).
You can see a faint horizontal line just above the tip of the cursor. Most likely, you have purchased a Cathode Ray Tube (CRT) monitor based on Sony's Trinitron technology. These monitors use an aperture grill instead of a shadow mask, and the aperture grill causes the lines. You can see the line in the following photo:To understand why the lines are there, we need to look at the shadow mask and aperture grill systems and understand the differences between them. 1  Shadow mask: The shadow mask in a CRT monitor is a metal screen filled with holes that sits just behind the phosphor layer.hese monitors use an aperture grill instead of a shadow mask, and the aperture grill causes the lines. You can see the line in the following photo: To understand why the lines are there, we need to look at the shadow mask and aperture grill systems and understand the differences between them.