The CNT-104R comes as standard with one 10MHz reference output with ultimate frequency accuracy to 1×10-12, 24h average, using the optional integrated GNSS disciplining of the Rubidium clock. The addition of a Pendulum FDA-301A Frequency Distribution Amplifier multiplies the number of outputs that can be distributed to 4, 8, or 12, depend-ing on the number of rear-panel installed output modules (1, 2, or 3).

Easy-to-understand Graphical Presentation

One of the great features of the CNT-104R is the graphic display with its menu-oriented settings. The non-expert can easily make correct settings, thanks to the guided instruction on most setting pages. Valuable signal information, given in multi-parameter displays, removes the need for other instruments like DVM’s and Scopes for quick signal verification.  

Measured values are presented as both numerics and graphics. Graphical presentation of results (distribution, trends etc.) gives a better understanding of the nature of jitter. It also provides a much better view of changes vs time, e.g. drift. The same data set can be viewed in Numerical, Statistics, Distribution and Timeline views. It is very easy to capture and toggle between views of the same data set.

Full flexibility for remote control

The CNT-104R comes as standard with a Gbit Ethernet interface for remote control and data transfer.  

Using an external WiFi dongle in the front panel USB port, enables you to connect CNT-104R to your local wireless network. You can access and control the instrument from your lab bench, or from anywhere in the world, using the integrated web interface. 

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Super-high-performance: 4-channel, ultra-high speed and 7 ps resolution

The ultra-high single-shot resolution gives better insights into the design under test, faster results in phase comparisons between clocks, more accurate calibration, and allows capture of very small time/phase changes. Track and compare 4 parallel signals with 7 ps resolution/timestamp, at a speed of 50 ns between samples in each channel.

Gap-free, zero-dead-time counting provides back-to-back measurements without losing any cycle, even for very long measurements. The CNT-104S is also a high-performance Modulation Domain Analyzer (MDA). Thanks to the high speed of up to 20M meas./s for 4 parallel signals, very fast frequency or phase/time changes can be captured in real time.

The CNT-104S has a unique 4-channel design, plus an optional RF input. All channels perform parallel, independent, and gap-free time-stamping of the input signal. This allows for new measurements that earlier required many instruments, like phase comparison of 4 atomic clocks, without the need for a switch. And Multi-stop Time-Interval measurements (1 start and 3 stop events) for time-of-flight measurements in physical research.

Outstanding ease-of-use – color touch screen and intuitive menus

The big color touch screen with its intuitive menus, lets you make your settings via a simple finger touch. Alternatively, you can connect a wireless mouse to the front USB host port, and make your settings via mouse clicks on the screen instead. Or you can use the web-server interface to control CNT-104S from a large PC-screen.

The intelligent AUTO SET will help you to make the best settings for each measurement function. You do not even need to be close to your instrument. The web server functionality lets you connect to the CNT-104S over Ethernet, view the front panel, and control the measurements and read results via a few mouse clicks. When adjusting a frequency source to given limits, the graphic display gives fast and accurate visual calibration guidance.

You can pan and zoom in graphs to view individual samples with cursor read-outs. Any measured signal can be smoothed, to reveal underlying trends in the presence of excessive noise.

The NEW CNT-104S Multi-channel Frequency Analyzer outperforms every existing benchtop frequency counter and time interval analyzer on the market, independent of measurement task.

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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.

Zero Dead-Time

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.

Battery Option

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)

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