Microlab Model LA-38N series low pass filter is de-signed to suppress out of band noise and interference, to improve signal quality in high power system applications and bench testing.Careful design of the matching end sections ensures a low loss pass band response. In the stop band rejection of at least 50 dB occurs and extends typically for several octaves. When compared to lumped element construc-tion, the cavity filter has far fewer solder joints, is better supported, and operates cooler with a better return loss.