- 300 MHz basic input range, options for 1.3 or 2.7 GHz
- Displays 10 digits in a second
- Smart AUTO trigger
- Rubidium atomic reference
- High stability, high accuracy and short warm-up times
The PM 6685R is the most accurate portable frequency counter on the market. It offers all the functionality of the PM 6685, plus the stability and accuracy of a built-in Rubidium atomic reference.
High stability, high accuracy and short warm-up times make this instrument ideal for high accuracy calibration procedures outside the cal lab environment, such as in base station transmitters of large telecommunication networks like GSM.
The short warm-up time means that the PM 6685R is ready for use within minutes after field transport or a change of location inside a building.