Home > PM 6685R frequency counters from Fluke Australia

PM 6685R frequency counters from Fluke Australia

Supplier News
article image PM 6685R frequency counters from Fluke Australia

The PM 6685R frequency counters from Fluke Australia are highly stable, highly accurate devices with the additional benefit of full portability.

With a built-in Rubidium atomic resonance-controlled frequency reference, these instruments are ideal for high-accuracy calibration procedures outside the calibration laboratory environment, such as in base station transmitters of large telecommunications networks like GSM.

The short warm-up time makes these frequency counters ready for use quickly, for example after transport or change of location inside a building. With a virtual clock frequency of 4 GHz, the PM 6685R frequency counters offer an unmatched resolution of 2.5 x 10-10 per second, giving 10 reliable read-out digits in only one or a few seconds. This makes high-accuracy calibration measurements possible, with the convenience of requiring only a digital counter.

The wide choice of input options allows digital calibration measurements at up to 8 GHz, without the complexity of needing to use synthesizers, mixers and filters to provide the required resolution down to the last digits.

Additionally, digital counting techniques allow a numerical offset or nulling of the display value to make it easy to read changing or arbitrary frequency values with many different digits.

Newsletter sign-up

The latest products and news delivered to your inbox