Pendulum
Pendulum CNT 91/91R
0.001 Hz to 300 MHz (CNT-91), 0.001 Hz to 3 GHz (CNT-91R) Frequency Range
12 digits/second frequency resolution Resolution
±1 ppm (standard TCXO), optional high-stability OCXO available Timebase Accuracy
3 channels (Channel A, Channel B, and optional Channel C RF input) Input Channels
Frequency, period, time interval, phase, duty cycle, pulse width, rise/fall time, totalize Measurement Functions
| Attribute | Value |
|---|---|
| Frequency Range | 0.001 Hz to 300 MHz (CNT-91), 0.001 Hz to 3 GHz (CNT-91R) |
| Resolution | 12 digits/second frequency resolution |
| Timebase Accuracy | ±1 ppm (standard TCXO), optional high-stability OCXO available |
| Input Channels | 3 channels (Channel A, Channel B, and optional Channel C RF input) |
| Measurement Functions | Frequency, period, time interval, phase, duty cycle, pulse width, rise/fall time, totalize |
| Input Impedance | 1 MΩ or 50 Ω selectable on Channels A and B |
| Sensitivity | 20 mVrms (typical) on Channels A and B; 20 mVrms on RF Channel C |
| Display | Backlit LCD with 12-digit numeric display |
| Interface/Connectivity | GPIB (IEEE-488), RS-232, and USB interfaces for remote control and data transfer |
| Power Requirements | 100–240 VAC, 50/60 Hz, approximately 20 W power consumption |
Pendulum CNT 91/91R Options:
- CNT - 10 - 3GHz Input C
- CNT - 13 - 8GHz Input C
- CNT - 14 - 16 GHz Input C
- CNT - 14B - 20 GHz Input C
- CNT - 19/90 - Medium Stability Oven Time Base; 0.06 ppm/month (CNT-91 only)
- CNT - 30/90 - Very High Stability Oven Time Base; 0.01 ppm/month (CNT-91 only)
- CNT - 40/90 - Ultra High Stability Oven Time Base; 0.003 ppm/month (CNT-91 only)
- CNT - 11/90 - Rear Panel Inputs
- CNT - 22/90 - Rack-Mount Kit
- CNT - 27 - Carrying Case - soft
- CNT - 27H - Heavy-duty Hard Transport Case
- CNT - 29/90 - TimeView Modulation Domain Analysis SW for CNT-90-family
- CNT - 90/01 - Calibration Certificate with Protocol; Standard oscillator
- CNT - 90/06 - Calibration Certificate with Protocol; Oven oscillator
- CNT - 90/07 - Calibration Certificate with Protocol; Rubidium oscillator (CNT-91R only)
- CNT - 90/00 - Calibration Certificate with Protocol; Hold-over frequency aging/week
- CNT - 95/05 - Extended warranty from 3 to 5 years
| Model | CNT |
|---|
