Product Overview The RLM-23+ protects against damage from unwanted signals over a wide frequency range, 950 to 2050 MHz, at up to 1W power. Construction is on a micro strip low loss dielectric material and cased into a high volume, low cost package for cost efficiencies. Measuring 0.5 x 0.5 x 0.18″ high, these tiny units provide excellent protection for IF circuits in satellite receivers, or low noise amplifiers in hostile environments where unwanted signals prevail, such as in manufacturing sites, train tunnels, etc. RLM-23+