[스크랩] MM-2500 spec

MM-2500   : Communications Tester

RF INPUT   Frequency Range 20㎒ ~ 2.5㎓   Level Range -30dBm ~ + 20dBm   Modulation Frequency 25㎐ to 50㎑   Input Impedance 50Ω       FM MEASUREMENT   Range Selection 100, 50, 30, 10, FM3   Accuracy ±(2％of FS+2% reading +residual FM )   Sensitivity 20~ 1500 MHz : -30 ~ 20 dBm 1500MHz ~ 2500MHz : -20 ~ 20 dBm   Distortion < 1.5%, for 50kHz dev. at 1kHz Mod.freq   De-Emphasis OFF, 50, 75, 750㎲ ( Time constant accuracy =±5% )   Filter LPF : OFF, 3kHz, 15kHz, 50kHz HPF : OFF, 25Hz, 300kHz, 3kHz       AM MEASUREMENT   Range Selection 100, 50, 30, 10   Accuracy ±(3％ of FS + 2% of reading + residual AM )   Sensitivity 20~1000MHz : -30~0 dBm   Residual AM < 3% for 30% depth at 1kHz Mod.freq       SIGNAL OUTPUT   AF Output Connector : Front panel BNC Frequency : 25㎐ to 50㎑ Level : 0.5Vrms Impedance : 600Ω   Distortion FM : <1%(for 7㎑ deviation at 1㎑ Mod-Freq) AM : < 3%(for 30% AM at 1㎑ Mod-Freq)       RF LEVEL MEASUREMENT   RF Input Frequency : 20㎒ to 2.5㎓ Input Level : -30dBm to 20dBm Input Impedance : 50Ω   Accuracy ±1dB   Display 7 segment 4 digits   Unit dBm, dBu, mW       FREQUENCY COUNTER   Frequency 20㎒ to 2.5㎓   Gate Time 0.1sec to 1sec(0.1, 0.3, 0.5, 1s)   Digit 7 segment 9 digits Display   Reading Speed 9digit/sec   Time Base OCXO (5×10-8)       OTHERS   Power Requirements 115/230 VAC , 50/60㎐, Auto Selectable   Dimensions 115(H) × 430(W) × 310(D) mm

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