10 kg Active Hydrogen Maser
Model: ECNU-2310max
The JLT-2310 MAX (ECNU-2310 MAX) active hydrogen maser is a 12 kg enhanced high-performance ultra-compact active hydrogen maser offering excellent frequency stability. It uses the most advanced process integration technology in a standard 4U rack-mount chassis. Its specifications exceed those of the 1008M, and it is a 100% domestically produced substitute. The JLT-2310 MAX is well suited to automated time service and test systems. It provides RS-232C, USB and LAN interfaces for remote access to operating status parameters and control.
Applications
- · National time service;
- · Space tracking and navigation;
- · Metrology and testing;
- · Scientific research.
Specifications
| Waveform | Qty | Amplitude | Bandwidth, ps | Rise time, ns | Interface / Load |
|---|---|---|---|---|---|
| 5 MHz (sine) | 2 | 1±0.2VrMs | - | - | SMA/50 Ω |
| 10 MHz (sine) | 2 | 1±0.2VrMs | - | - | SMA/50 Ω |
| Performance | ||||
|---|---|---|---|---|
| Relative frequency accuracy | ± 3×10⁻¹³ | ≤ ±1×10⁻¹³ | ||
| Frequency stability (Allan deviation at 25±1 °C, environmental effects excluded) | 1 s | ≤ 3.0×10⁻¹³ | ||
| 10 s | ≤ 5.0×10⁻¹⁴ | |||
| 100 s | ≤ 2.0×10⁻¹⁴ | |||
| 3600 s | ≤ 3.0×10⁻¹⁵ | |||
| 86400 s | ≤ 8.0×10⁻¹⁶ | |||
| Phase noise (dBc/Hz) |
Offset | @5MHz | @10MHz | @100MHz |
| 1 Hz | ≤ -105 | ≤ -100 | ≤ -80 | |
| 10 Hz | ≤ -130 | ≤ -120 | ≤ -100 | |
| 100 Hz | ≤ -145 | ≤ -140 | ≤ -120 | |
| 1 kHz | ≤ -155 | ≤ -145 | ≤ -150 | |
| 10 kHz | ≤ -155 | ≤ -145 | ≤ -150 | |
| Frequency drift (after 1 year of operation) | ≤ 1×10⁻¹⁵/day | |||
| Magnetic sensitivity | ≤ 1×10⁻¹⁴/Gauss | |||
| Temperature sensitivity | ≤ 1×10⁻¹⁴/℃ | |||
| Physical Specifications | |
|---|---|
| Dimensions (W × H × D) | 470 mm × 200 mm × 530 mm |
| Weight | ~12kg |
| Operating temperature range (±0.5 °C/hour) | 10–35 °C (recommended +22 °C) |
| Relative humidity | < 80% at +25 °C |