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Kenwood Model FL-180A Wow and Flutter Meter in Very Good Shape. Excellent Piece of Audio Test Gear Very Good Condition and Fully Functioning -The FL-180A can measure inputs as low as 0.5 mV, enabling it to directly measure wow & flutter of such low-level output voltages as those from tape playback heads and phono Measuring Range from 0.003% to 10% -The capability of measuring wow & flutter between 0.003% and 10% makes the FL-180A usable in a wide range, from low wow & flutter of high-class record /playback systems to the high wow & flutter of abnormal rotations. - In addition to the 3 kHz measurement center frequency, measurement is also possible at a center frequency of 3.15 kHz, enabling measurements conforming to DIN standards. -The meter indication method can be selected as rms value (JIS), average value (NAB) or peak value (CCIR/DIN), enabling direct reading for any of these standards. -In addition to wow & flutter measurements with weighted and non-weighted characteristics, the FL-180A can also measure -Highly stable crystal oscillator circuitry is built in for use as 3 kHz and 3.15 kHz recording signal sources to facilitate testing of record /playback systems. -Rotation speeds can be displayed digitally. -A 4-digit frequency counter is built in. -An operational monitoring lamp eliminates the need of input voltage and input frequency setting operations. -Outputs of various voltages for the connection of an oscilloscope or pen recorder, etc. The FL-180A is a wow/flutter meter capable of measuring wow and flutter of a tape recorder VCR analog disk turntable‚ etc. The wow & flutter measuring range is from 0.003% to 10%‚ the measurement center frequency is 3 kHz ±300 Hz (JIS) the minimum input sensitivity is 0.5 mV and the meter indication can be selected to conform to any of the JIS NAV CCIR and DIN standards. In addition a 4-digit digital display counter and an audio compensation ON-OFF function are also provided. Measurement center frequency3kHz ±300Hz (NAB/CCIR/JIS 3.15kHz ±300Hz (DIN standard) Input level range0.5mV to 100mV, 5mV to 30V (two ranges) Input impedanceApprox. 300k; (unbalanced) Wow/flutter measurement range0.003 to 10% (5mV to 30V), 0.01 to 10% (0.5mV to 100V range), 6 ranges Indication accuracy ±5% of full scale (at 4Hz) Weighted characteristicsIn accordance with standards of NAB, WOW characteristics0.5 to 6Hz (-3dB±1dB) (NAB/JIS) 0.3 to 6Hz (-3dB±1dB) (CCIR/DIN) Flutter characteristics6 to 200Hz (-3dB±1dB) Unweighted characteristics0.5 to 200Hz (-3dB±1dB) (NAB/JIS) 0.3 to 200Hz (-3dB±1dB) (CCIR/DIN) RolloffBelow 0.5Hz: -6dB/OCT min. (NAB/ JIS) Below 0.3Hz: -6dB/OCT min. Maximum input voltage100V (DC ACpeak) Input monitorLevel monitor lamp lights Measurement frequency range0.010kHz to 9.999kHz (1s gate) 0.010kHz to 55.00kHz (0.1s gate) Input level range100mVrms to 30Vrms Input impedanceApprox. 300k; (unbalanced) Counter capacity4 digit (decimal), storage-type LED display Time base frequency10.080MHz (internal quartz oscillator) or Time base frequency accuracy±5×10-5 quartz oscillator) or line frequency accuracy (line time base) Measurement accuracy±(1 digit time base accuracy) Maximum input voltage100V (DC ACpeak) Input monitorLevel monitor lamp light at an input voltage of 100mV min. (lamp flashes at 9.999kHz or greater for a 1s gate time, and at above 55.00kHz for a 0.1s gate time, to indicate Signal frequencies3kHz and 3.15kHz Output voltageApprox. 0.2Vrms (open circuit) Output impedanceApprox. 600Ω (unbalanced) Distortion1% max. (with 600Ω termination) Output voltageApprox. ±1V DC for each ±1% of frequency drift Output impedanceApprox. 600Ω (unbalanced) Oscilloscope output (TO SCOPE) Output voltageApprox. 3Vrms at full scale Output impedance Approx.600Ω (unbalanced) Output voltageApprox. 1V DC at full scale Output impedanceApprox. 600Ω (unbalanced) Power source100/120/220/216V to 250V AC, 50/60Hz, Dimensions260 (W)×150 (H)×305 (D) mm |
