Product Description:
The PM 6685 frequency counter from Fluke brings cal lab accuracy to field measurements. With 10 digits per second, plus overflow (displays 11th and 12th digits), it delivers high-accuracy measurements instantly. The PM 6685 is easy to use, compact and - most important of all - it has today's smartest input triggering for frequency measurements. The battery option for the PM 6685 maintains oven stability for 20 hours, giving you instant oven performance even after long transportation.
Features：
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300 MHz basic input range; options for 1.3 GHz, 2.7 GHz, 4.2 GHz or 4.5 GHz
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Ultra High Stability Oven: up to 5 x 10-9 within 10 min
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Battery supply in combination with Ultra High Stability Oven for On-Site calibration
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Displays 10 digits in a second Smart AUTO trigger eliminates guesswork, provides errorfree measurements
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Analog Bar Graph displays signal strength and input sensitivity to assist instrument setup and RF tuning applications
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Nulling function lets you use any value as input reference
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Digit blanking function to eliminate distracting or insignificant digits in your readings
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Connect-and-go convenience for testbench and field use Optional IEEE-488 (SCPI) interface
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Option PM9626: GPIB-Interface includes Analog Output and TimeView Analysis software available
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