Fluke PM6685-656 - 2.7 GHz Input C

Cal lab performance in the field

With 10 digits per second resolution, plus overflow (11th and 12th digits), it delivers high accuracy measurements instantly. The standard timebase offers a stability of better than 5E-7 per month, and better than 5E-11 per month with the PM 6685R Rubidium Counter.

Built in capabilities simplify tricky measurements

The PM 6685"s built-in intelligence eliminates a lot of button pushing. Just plug it in, and it automatically selects optimum trigger level and input sensitivity for excellent noise immunity.

Analog bar graph

The analog bar graph displays signal strength and input sensitivity to assist instrument setup and RF tuning applications.

300 MHz basic input range; options for 2.7 GHz and 8 GHz.

Measurement functions

Frequency, Burst Frequency, Period A, Ratio A/E C/A, Pulse Width A, Duty Factor, Totalize A.

Auxiliary functions

External Arming, External Gate, Nulling/Frequency Offset.

Options & accessories

External Reference Multiplier (1,5,10 MHz), GPIB Interface, Battery Unit.

Bench Instruments   >   Timer/Counters   >
PM 6685 Universal Frequency Counter
Model Name Description  PM 6685/_ _ 1   300 MHz Universal Frequency Counter
Instrument optional configuration Option Code Option Description Specify an Input Frequency Pre-Scaler /0_ _ Standard version, no additional input frequency pre-scaler /6_ _ 2.7 GHz Input C (PM 9624) /7_ _ 8 GHz Input C (PM 9638) Specify a TimeBase Option /_1_ Standard Time base oscillator /_5_ Very High Stability Oven Timebase (PM 9691) /_6_ Ultra High Stability Oven Time Base (PM 9692) /_7_ Rubidium Time base, Select model PM 6681R Specify a Battery Unit and GPIB Interface Option /_ _3 Battery Unit (PM 9623) for PM 6685 only /_ _6 GPIB Interface (PM 9626/02) and TimeView TM Time and Frequency Analysis Software for DOS for PM6685 and PM6685R Example: To order the PM 6681R 300 MHz, 50 ps version with the 2.7 GHz input C, select the complete Model Number: PM 6681R/676. Note: When ordered together with the basic counter, options are factory installed. Options ordered separately can be customer retrofitted, except PM 9611/80 Real Panel Inputs.
Test leads, Probes and Clips Buy it ** PM9639/011 PM9639/011 Wide Bandwidth, Low Impedance Probe   Y8021 Shielded IEEE-488 Cable, 1m   Y8022 Shielded IEEE-488 Cable, 2m   Y8023 Shielded IEEE-488 Cable, 4m   Cases and Holsters Buy it ** PM9627 Carrying Case   PM9627H Heavy Duty Aluminum Carrying Case   Rack Mounts & Hardware Buy it ** PM9622/021 Rack-Mount Kit for PM6685 and PM6690   PM9611/80 Rear Panel Inputs   Options Buy it ** PM9624 2.7 GHz Input C   PM9638 8 GHz Input C   PM9691 Very High Stability Oven Time Base   PM9692 Ultra High Stability Oven Time Base   Software Buy it ** PM9626/00 GPIB-Interface for PM PM6685 or PM6685R Includes Analog Output and TimeView™ Time & Frequency Software