The Pendulum CNT-104B is a high-performance multichannel frequency analyzer designed specifically for use in automated test and production systems. Four independent input channels enable the parallel and seamless acquisition of frequency, period, phase, and time interval values. As a result, a single CNT-104B can replace up to four conventional frequency counters, reducing both the space required and the cost per measurement channel.
The device features a closed front panel without an integrated display. All measurement inputs are located on the rear panel, making the CNT-104B particularly well-suited for rack mounting and reliable continuous operation in ATE systems. Operation and data analysis are performed via SCPI over Ethernet, USB, or optionally GPIB. The integrated web interface allows measurement values, statistics, and history, distribution, and optional Allan deviation plots to be displayed on a PC, laptop, or tablet.
Typical applications include automated production testing, the parallel monitoring of multiple oscillators and clock sources, frequency and phase comparisons, calibration tasks, modulation analyses, and measurements on communication, synchronization, and high-frequency systems. Thanks to its high bus speed and parallel processing, the CNT-104B significantly reduces test times in automated test environments. :contentReference[oaicite:0]{index=0}
Product Features:
- Device Type: Multi-channel frequency and time interval analyzer for test systems
- Number of Input Channels: 4 independent, parallel-operating channels
- Input location: Rear BNC connectors
- Front panel: Dummy panel without integrated display
- Frequency range of standard channels: DC to 400 MHz with DC coupling or 10 Hz to 400 MHz with AC coupling
- Time resolution: 14 ps per timestamp; optionally expandable to 7 ps
- Measurement rate to internal memory: Up to 1 million measurement values per second; optionally up to 20 million measurement values per second
- Measurement principle: Seamless zero-dead-time measurement with parallel timestamping of all channels
- Frequency resolution: Up to 12 to 13 digits per second, depending on the signal and measurement settings
- Standard time base: TCXO with a drift of typically 1 ppm per year
- Optional time base: High-stability or ultra-high-stability OCXO version
- Input impedance: 1 MΩ in parallel with 40 pF or 50 Ω
- Input sensitivity: Typically up to 15 mV RMS with the preamplifier enabled and frequencies up to 100 MHz
- Maximum event frequency: Up to 400 MHz for frequency counting; up to 300 MHz for time interval and pulse measurements
- Measurement functions: Frequency, frequency ratio, period, time interval, pulse width, rise and fall times, slew rate, duty cycle, phase, event counting, and voltage parameters
- Optional measurement functions: TIE measurement, frequency deviation, Allan deviation display, and programmable pulse output
- Optional RF input: Optionally up to 3 GHz or up to 10 GHz; expandable to 15, 20, or 24 GHz via software license
- Remote interfaces: Gigabit Ethernet, USB 2.0, and optional GPIB
- Control: SCPI via HiSLIP, web interface, and Ethernet-over-USB
- Data transfer: Up to 170,000 data points per second in Ethernet block mode
- Individual measurements via Ethernet: Up to 425 data points per second
- Internal data memory: Up to 32 million data points, depending on the measurement rate and number of channels
- Power supply: 100 to 240 V AC, 50 to 60 Hz; nominally also 400 Hz
- Power consumption: Less than 70 W at maximum configuration
- Operating temperature: 0 to +50 °C for desktop operation or 0 to +40 °C in a rack
- Dimensions: 210 × 90 × 395 mm
- Weight: Approx. 3 kg
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