HP 53131A Universal Counter, 225 MHz, 10 Digit/sec
The 53131A universal counter has the capability to do the job quickly and correctly from fast signal processing to automated limit tests. The 53131A has frequency resolution of 10 digits per second, 500 ps time interval resolution and a complete set of test and analysis features. The unit comes with two 225 MHz channels, and you can choose an optional third channel that measures up to 3 GHz.
Features:
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Frequency Range: dc to 225 MHz
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Frequency resolution: 10 digits/s
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Dynamic range: 20 mV to ±5 Vac (dc to 100 MHz), 30 mV to ±5 Vac (100 to 200 MHz), 40 mV to ±5 Vac (200 to 225 MHz)
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Input impedance: 50 ohm or 1 megohm, ac or dc
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Time interval: 500 ps
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Standard time base accuracy: 10 MHz, <3 X 10-7th/month (<1.5 X 10-8th/month with option 010)
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GPIB (IEEE-488) and RS-232 (talk only) interfaces
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100-120 Vac ±10%; 50, 60, 400 Hz ±10% / 220, 240 Vac ±10%; 50, 60 Hz ±10% operation
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Weight: 7 lb; Size: 89 mm (3.86 in)H x 213 mm (8.35 in)W x 348 mm (10.87 in)D
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