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The Advantest TR5823 is a universal counter capable of measuring frequencies from 1 mHz to 1300 MHz. The TR5823 can measure periods from 20 ns to 1000 s and can make time interval measurements from 200 ns to 1000 s. Frequency ratio and totalization measurements can also be done from DC to 50MHz. For frequencies between 1 mHz and 50 MHz (INPUT B), the TR5823 uses the reciprocal method to find the frequency by measuring the period of the input frequency and then taking the reciprocal with the internal microprocessor to calculate the frequency. From 10 Hz to 120 MHz (INPUT A), the TR5823 uses the direct measurement method. The TR5823 uses the prescale method between 100 MHz and 1300 MHz (INPUT C). Due to these various methods of measurement, accurate measurement of frequencies from low to high can be obtained from a single unit. The TR5823 also features a Masking Function, Autotrigger Function and can perform a self-check. When used with the TR1644, the TR5823 can do calculations on the measured results. The TR5823 comes with either built-in GPIB or BCD output. These features allow for system upgrading or automatic recording of measured results.
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