The Level correction of MAT800/810 corresponding to several input frequency

Fig.1:Attenuation of MAT800/810 corresponding to 16-frequency range.

The attenuation level of MAT800/810 has some frequency response that is higher at minimum frequency "ƒ₀" and maximum frequency "ƒ₁₅" and lower at the center frequency "cf" as shown in Fig.1. Therefore, the attenuation levels are calibrated ac cording to 16 frequency ranges, from " ƒ₀" to "ƒ₁₅ ", by 1600 steps(MAT800) or 1200 steps(MAT810).

MAT800 has 1600 step of attenuation level, 0dB to 80dB by 0.05dB step.

MAT810 has 1200 step of attenuation level, 0 dB to 60dB by 0.05dB step.

The attenuation levels are corrected for all 1600(M AT800) or 1200(MAT810) step using a SG and a power-meter.

In the case you use MAT800/810 at "ƒ_i" frequency or around "ƒ_i", you select a frequency range using the keys and the data-knob of MAT800/810, and the MAT800/810 make a attenuation level corrected at the frequency "ƒ_i".

By above correction, MAT800/810 is improved to mak e correct attenuation level for all frequency range.