EIP
EIP 451
18GHz Microwave Pulse Counter
10 MHz – 1.3 GHz Frequency Range
1 Hz Frequency Resolution
±1 ppm (with internal timebase) Measurement Accuracy
50 Ohms Input Impedance
-30 dBm (typical) Sensitivity

| Attribute | Value |
|---|---|
| Frequency Range | 10 MHz – 1.3 GHz |
| Frequency Resolution | 1 Hz |
| Measurement Accuracy | ±1 ppm (with internal timebase) |
| Input Impedance | 50 Ohms |
| Sensitivity | -30 dBm (typical) |
| Maximum Input Level | +20 dBm |
| Display | LED numeric display |
| Power Requirements | 115/230 VAC, 50/60 Hz |
| Operating Temperature | 0°C to 50°C |
| Timebase Reference | Internal TCXO / External 10 MHz reference input |
EIP 451 Options:
- 451 - P1 - Temperature Compensated Crystal Oscillator
- 451 - P2 - Band A: 300-950 MHz
- 451 - P3 - Rear Panel Inputs (Band A & B)
- 451 - P4 - BCD Output/Remote Programming
- 451 - P5 - GPIB (per IEEE Std. 488-1975)
- 451 - P6 - Chassis Slides
| Model | 451 |
|---|
The EIP 451 Microwave Pulse Counter automatically and directly measures the Frequency of Pulse modulated Microwave Signals between 300MHz and 18GHz and Pulse widths of 100 ns, with no minimum or maximum Pulse repetition Frequency limits.




