product

Active Hydrogen Maser VCH-1003M

  • Product
  • Hydrogen Masers
  • Active Hydrogen Maser VCH-1003M

The VCH-1003M is a state-of-the-art, high-performance maser with low phase noise option. It utilizes the latest maser technologies, including Stand-alone Auto Cavity Tuning (no external reference required), remote IP control, monitoring and self-diagnostics.

Key Applications National Time Keeping Service; Deep space tracking and navigation VLBI GNSS satellite monitoring

Specifications

Output signals

Sine: two outputs 5 MHz (sine), 1 ± 0.2 V RMS into 50 Ohms,     two outputs 10 MHz (sine), 1 ± 0.2 V RMS into 50 Ohms,     two outputs 100 MHz (sine), 1 ± 0.2 V RMS into 50 Ohms,     one output 1400 MHz (option) Pulse: two outputs 1 Hz (pps); Amplitude: > 2.5 V into 50 Ohm ; Width: 10-20 μs ; Rise time: < 3 ns

Standard

Option L

3 Hz

3 Hz

0.5 Hz

Frequency stability (Allan deviation)

1 s

≤1.5×10e-13

8.0×10e-14

6.0×10e-14

10 s

≤2.5×10e-14

1.4×10e-14

1.3×10e-14

100 s

≤6×10e-15

4.0×10e-14

3.6×10e-14

1000 s*

≤2×10e-15

1.5×10e-15

1.3×10e-15

3600 s*

≤ 1.5×10e-15

1.5×10e-15

1.0×10e-15

1 day*

≤7×10e-15

5.0×10e-16

5.0×10e-16

Long term: **

< 3.0e-16 per day

Synthesized Frequency Resolution Frequency control range

1×10e-16

1×10e-10

Harmonic distortion:

< 30 dB (for 5 MHz output)

Non-harmonic distortion:

< -100 dB in the range from 10 Hz to 10 kHz

Temperature sensitivity

≤ 2×10e-15 / C°

Magnetic sensitivity

≤ 1×10e-14 / Gauss

Phase noise (dBc/Hz)

offset

standard

Option L

1 Hz

-118

-130

10 Hz

-135

-142

100 Hz

-149

-152

1000 Hz

-156

-156

* Specified only under laboratory conditions: at ±1 °C ambient temperature change in 10-35 °C operating temperature range.

** Achieved after extended period of unperturbed, continuous operation.

Manual synchronization to external 1 pps TTL signal with 50 ns accuracy.

Operating temperature range: +5 C° to +35 C°

Power: 85 to 264V, 50 Hz; 22-30V dc

Power consumption: 150 VA ac, 100 W dc

Dimensions (WxHxD): 550 mm × 990 mm × 550 mm

Weight: 105 kg

Full data monitoring and functions control (local or remote through any network) performs by personal computer

Application software runs under Microsoft WindowsTM

Lifetime: 15 years