Product Description:
Leader Frequency Counters provide accurate, reliable frequency and period measurements for a wide variety of laboratory, communications and bench applications LSI and MSI bchnology results in cost-effective instrumentation for today's stringent requirements.
Large, fluorescent displays make these instruments particularly wellsuited to production testing and other applications where a large, bright readout is essential.
All four unlts are housed in wellshielded metal cases which virtually Laboratory eliminates errors caused by nearby R.F. fields. Frequency Ranges I GHz 20 mV Sensitivity
In addition to frequency readout, period measurements can also be made. Normally, a sampling rate of ten seconds can be expected for direct frequency readouts when the test signal frequency is very low and resolution to 0.1 Hz or greater is required. The period function can be used to reduce sampling time and to increase the accuracy of the measurement while increasing the resolution significantly. In the period mode, the time duration of one period is measured, averaged over the gate time, A reading of 16.09 milliseconds, for instance, can be converted to 62.15 Hz using the relationship f = lit. The period made is particularly useful when performing high resolution frequency adjustments because the counter readout permits constant observation of any change in frequency.
Resolution :
Counter resolution is dependent upon frequency range, gate time and the number of digits in the display. The charts below compare the resolution of the four Leader laboratory counters.
LDC-825 1 GWz Counter :
The LDC-825 has the widest frequency range of any Leader counter, 10 Hz to 1 GHz. It also has the highest time base accuracy (& 0.03 pprn), making it the ideal counter for critical, high-frequency requirements. Two input rmpedances, 1 Mfl(10 Hz to 80 MHz) and 50 R (50 MHz to I GHz) are available for precise matching to the device under test.