Pendulum
Pendulum 2804 GPS Master Clock
12-channel parallel tracking GPS receiver GPS Receiver
10 MHz sine wave, 1 PPS TTL Frequency Output
±1 × 10⁻¹² (GPS locked, 24-hour average) Frequency Accuracy
±100 ns RMS to UTC (GPS locked) Time Accuracy
50 Ω Output Impedance

| Attribute | Value |
|---|---|
| GPS Receiver | 12-channel parallel tracking GPS receiver |
| Frequency Output | 10 MHz sine wave, 1 PPS TTL |
| Frequency Accuracy | ±1 × 10⁻¹² (GPS locked, 24-hour average) |
| Time Accuracy | ±100 ns RMS to UTC (GPS locked) |
| Output Impedance | 50 Ω |
| Power Supply | 100–240 VAC, 50/60 Hz, auto-ranging |
| Operating Temperature | 0°C to +50°C |
| Antenna Input | SMA connector, supports active GPS antenna with 5V bias |
| Display | Front panel LCD display showing time, date, and lock status |
| Form Factor | 1U rack-mount, 19-inch standard rack compatible |
| Model | 2804 |
|---|
- Precision OCXO and Rubidium oscillators for accuracy and stability
- Un-interrupted operation, even if GPS-signals are lost
- Provides reference frequency, timing and time code outputs
- Ideal for rack mounting, only 1U high
- External 24V DC backup for power supply redundancy
- Everything needed comes as standard: 6x 10MHz, 1x 5MHz, 2x 1-pps, 2x Timecode outputs and 1x Event input




