10 kg Active Hydrogen Maser
Model: ECNU-2310Pro
The JLT-2310 PRO (ECNU-2310 PRO) active hydrogen maser is an 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 VCH1008, and it is a 100% domestically produced substitute. The JLT-2310 PRO is well suited to forming part of an autonomous cooperative swarm timing system and integrates readily with various platform systems. RS-232C, USB and Ethernet (LAN) interfaces can be supplied to order for accessing operating status and control parameters.
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 ± 0.2 VRMS | - | - | SMA/50Ω |
| 10 MHz (sine) | 2 | 1 ± 0.2 VRMS | - | - | SMA/50Ω |
| 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 | ≤ 1.0×10⁻¹³ | |||
| 100 s | ≤ 5.0×10⁻¹⁴ | |||
| 3600 s | ≤ 9.0×10⁻¹⁵ | |||
| 86400 s | ≤ 4.0×10⁻¹⁵ | |||
| 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 | ≤ 2×10⁻¹⁴/℃ | |||
| Physical Specifications | |
|---|---|
| Dimensions (W × H × D) | 470 mm × 200 mm × 530 mm |
| Weight | ~10kg |
| Operating temperature range (±0.5 °C/hour) | 10–35 °C (recommended +22 °C) |
| Relative humidity | < 80% at +25 °C |