Racal
Racal 1991
160MHz Universal Timer
1 Hz to 160 MHz Frequency Range
9 digits Resolution
±1 ppm per year aging rate Timebase Accuracy
1 MΩ / 50 Ω selectable Input Impedance
25 mV RMS (50 Ω), 100 mV RMS (1 MΩ) Sensitivity
| Attribute | Value |
|---|---|
| Frequency Range | 1 Hz to 160 MHz |
| Resolution | 9 digits |
| Timebase Accuracy | ±1 ppm per year aging rate |
| Input Impedance | 1 MΩ / 50 Ω selectable |
| Sensitivity | 25 mV RMS (50 Ω), 100 mV RMS (1 MΩ) |
| Gate Time | 1 ms to 10 s |
| Display | 9-digit LED display |
| Power Supply | 90–260 V AC, 47–63 Hz |
| Operating Temperature | 0°C to 50°C |
| Interface | IEEE-488 (GPIB) standard |
| Model | 1991 |
|---|
The Racal Dana 1991 Universal Timer / Counter measures Frequency, Period, Time Interval, Ratio, Totalize, Phase, and Peak Amplitude. The 1991 Frequency range from DC to 160MHz, Channel A's sensitivity is 25 mV rms up to 100MHz, above 100MHz
