Fast Speed and High Resolution
The CNT-90 is a high-performance frequency counter that can measure frequencies up to 250,000 measurements/sec. It also has a memory depth of 750k, meaning you can store lots of data. Additionally, it has a high resolution of 100 ps single shot (time), so you can get very accurate readings. Finally, the CNT-90 offers ease-of-use, with a multi-mode graphic/numeric display that makes it easy to read data. And all this comes at a very competitive price.
GPIB/USB Increased Throughput and Efficiency
The CNT-90 has a USB and GPIB (IEEE 488.2) interface. The GPIB interface follows the SCPI/1999 standard and also includes a switchable emulation mode for the HP53131A. This will make it easy to use the CNT-90 in systems that were designed for the older model counters.
The CNT-90 saves test system time by increasing throughput up to 90%. With a fast bus transfer speed of 2k measurement results/sec. (GPIB or USB), the CNT-90 quickly gets results to you.
The CNT-90’s continuous time-stamping of events enables it to capture all individual periods without any dead time. This means that it can measure every complete event cycle without interpolation errors. This process allows for a least squares linear regression of multiple measurements, which adds 3 or more digits to the measurement resolution.
Microwave Frequency Range and Time Base
The CNT-90 has a frequency range of 400 MHz. It also has the option to have a frequency range of 3, 8, 14 and 20 GHz. There are two different types of OCXO options: one with high stability (0.01 ppm/month), and one with ultra-high stability (0.003 ppm/month).
Graphic Display and Multi-mode Presentation
The CNT-90 is a frequency counter that shows the result of your measurements in a graphical way. This includes histograms, trend lines, and modulation. This will help you understand the randomness of the signals you are measuring and how they change over time, from slow drift, to fast jitter and modulation. You may also examine the full statistical analysis of your data, which includes a mean, min., max., p-value, standard deviation, and Allan deviation in both graphical and numerical form.
With TimeView and the Modulation Domain Analyzer software (optional), the CNT-90 statistical processing is more powerful and provides expanded analysis capabilities.
The CNT-90 and CNT-90XL have an optional battery pack with 90 Wh capacity, capable of mains-free operation for at least 4.5 hours. In stand-by the battery pack can keep an OCXO warm and running for over 24 hours. Battery operation of a frequency counter/analyzer is valuable in three different applications:
- Mains-free operation in the field
- Transportation of high-stability OCXO to maintain stability, which gives instant use at destination without any warm-up time
- Battery backup acting as a built in UPS (Uninterrupted Power Supply)