For many applications, the phase noise of a Rubidium reference is not acceptable. The NR2310D-R-O incorporates a low noise OCXO that is disciplined to the Rubidium reference. Ten channels typically meets the needs of most systems eliminating the need for a distribution amplifier and minimizing noise degradation. All channels are continuously monitored and displayed locally and accessible via RS232 or Ethernet.
10Hz -130
100Hz -140
1K -145
10K -150
For many applications, the phase noise of a Rubidium reference is not acceptable. The NR2310D-R-O incorporates a low noise OCXO that is disciplined to the Rubidium reference. This product also adds a 26 channel GNSS receiver that brings the long-term stability of GNSS. The NR2310D-ROG brings the best of three timing technologies together- the low phase noise of the OCXO, excellent holdover stability of Rubidium and the long-term stability of GNSS locking. Ten channels typically meets the needs of most systems eliminating the need for a distribution amplifier and minimizing noise degradation. All channels are continuously monitored and displayed locally and accessible via RS232 or Ethernet.
10Hz -130
100Hz -140
1K -145
10K -150
The phase noise for a standard Rubidium source is not acceptable for some applications. Our low noise Rubidium frequency reference incorporates a low noise OCXO that is locked to the Rubidium source. This combination gives you the best of two technologies – the stability of Rubidium and the low noise of an OCXO. This single rack unit chassis, having ten channels, frequently meets the needs of complex systems and often eliminates the need for a distribution amplifier.
10Hz -125
100Hz -140
1K -145
10K -150
A low cost reference featuring the stability of Rubidium (< 1 ppb/year). In many applications, an OCXO does not have the stability required and GNSS locking is not an option. This reference offers excellent stability where cost is a major driver and the higher phase noise of Rubidium is acceptable. If low phase is also required see our NR2310D-RO that adds a low phase noise OCXO to improve phase noise. The ten channel configuration yields a better phase noise and skewing than a reference and a separate distribution amplifier. Skewing for the ten channels is less than 5 ns. This single rack unit chassis, having ten channels, frequently meets the needs of complex systems and often eliminates the need for a distribution amplifier.
10Hz -85
100Hz -115
1K -135
10K -140
Low Cost dual channel 10 MHz Rubidium frequency reference. Channels are continuously monitored and displayed locally and accessible via RS232 or Ethernet.
10Hz -85
100Hz -115
1K -135
10K -140
For many applications, the phase noise of a Rubidium reference is not acceptable. The NR2110D-R-O incorporates a low noise OCXO that is disciplined to the Rubidium reference. Channels are continuously monitored and displayed locally and accessible via RS232 or Ethernet.
10Hz -130
100Hz -140
1K -145
10K -150
For many applications, the phase noise of a Rubidium reference is not acceptable. The NR2110D-R-O-G incorporates a low noise OCXO that is disciplined to the Rubidium reference. This product also adds a 26 channel GNSS receiver that brings the long-term stability of GNSS. The NR2110D-R-O-G brings the best of three timing technologies together- the low phase noise of the OCXO, excellent holdover stability of Rubidium and the long-term stability of GNSS locking. All channels are continuously monitored and displayed locally and accessible via RS232 or Ethernet.
10Hz -130
100Hz -140
1K -145
10K -150
GNSS-locked 10 MHz OCXO based frequency reference locked to a 26 channel multi-satellite system receiver, provides for fast lock under weak signal conditions. Unit produces 10 MHz, PPS, NMEA and a synthesized secondary channel that can range from 14 kHz to 10 MHz. Optional NTP Time server. Auto-calibration maintains output stability in an intermittent GPS environment. Battery provides for in excess of four hours of use. The NR9400 can be powered from an external 12 Vdc source. Event inputs record to 100 ns resolution. Rubidium holdover option available.
The NR8403 in a versatile modular package bring stability to almost any location. Wide power operating range with GNSS locking to further enhance long-term stability. The low noise option adds an ultra-low noise OCXO that can be also vibration isolated to reduce mechanical induced phase noise. Phase noise < 155 dBc/Hz at 10kHz. Popular in scientific, calibration labs and satellite up-links.
Harmonics <40 dBc
Excellent holdover stability < +-1 ppb/year
GNSS locking
Low phase noise options
Outputs are fault protected and monitored continuously
Built-in test circuitry throughout the design
Available with and without display
10 and 50 MHz available
The NR8403-R in a versatile modular package bring stability to almost any location. Wide power operating range with optional GNSS locking to further enhance long-term stability (NR8403-RG). The Rubidium source affords outstanding holdover stability (<1 ppb/year). The low noise option adds an ultra-low noise OCXO that can be also vibration isolated to reduce mechanical induced phase noise (NR8403-RO). Phase noise < 155 dBc/Hz at 10kHz. Unit may also be locked to an external 10 MHz or PPS. Popular in scientific, calibration labs and satellite up-links.
Harmonics <40 dBc
Excellent holdover stability < +-1ppb/year
GNSS locking option
Low phase noise option
Outputs are fault protected and monitored continuously
Built-in test circuitry throughout the design
Available with and without display
10 and 50 MHz available
The NR8403-RO in a versatile modular package bring stability to almost any location. Wide power operating range with optional GNSS locking to further enhance long-term stability (NR8403-RG). The Rubidium source affords outstanding holdover stability (<1 ppb/year). The low noise OCXO adds a low noise OCXO that can be also vibration isolated to reduce mechanical induced phase noise . Phase noise < 155 dBc/Hz at 10kHz. Unit may also be locked to an external 10 MHz or PPS. Popular in scientific, calibration labs and satellite up-links.
Harmonics <40 dBc
Excellent holdover stability < +-1ppb/year
Outputs are fault protected and monitored continuously
Built-in test circuitry throughout the design
Available with and without display
10 and 50 MHz available
Need low noise and GNSS locking? NR8403-ROG
The NR8403 in a versatile modular package bring stability to almost any location. Wide power operating range with GNSS locking to further enhance long-term stability. The low noise option adds an ultra-low noise OCXO that can be also vibration isolated to reduce mechanical induced phase noise (NR8403-ROG). Phase noise < 145 dBc/Hz at 10kHz. Popular in scientific, calibration labs and satellite up-links.
Harmonics <40 dBc
Excellent holdover stability < +-1 ppb/year
GNSS locking
Low phase noise options
Outputs are fault protected and monitored continuously
Built-in test circuitry throughout the design
Available with and without display
10 and 50 MHz available
16 Channel GPS/GNSS Locked Rubidium 10 MHz Frequency Reference
NR2316D-R-O-G
A solid, 16 channel platform. Rubidium source provides outstanding stability < 1 ppb/year. Embedded 26 channel GNSS receiver locks and stays locked in weak signal environments. Transient and fault protected channels designed for the a high level electromagnetic environment to provide years of reliable service. AC and DC power options available for critical installation.
•16 channel 10 MHz reference with built-in GNSS receiver.
•16 channel GNSS locked OCXO 10 MHz frequency reference.
•Low phase noise OCXO – 125dBc/Hz at 100 Hz.
•Rubidium source stability < 1 ppb/year
•Locked accuracy <3E-11.
•16 channels very often eliminate the need for a distribution amplifier.
•Harmonics are well below -30dB.
•Chassis is 1 RU (~1.7 inches) and saves valuable rack space.
•All inputs and outputs are transient protected.
•Built-in test.
•Unit features auto-calibration to compensate for long-term drift.
•High performance 26 channel GPS receiver that supports GPS, GLONASS, SBAS, QZSS. By being able to receive data from multiple satellite constellations, lower lock time is achieved. Maintaining lock in poor signal environments is enhanced.
Optional Networking and SNMP available (for a 10 channel platform see NR2310D-O/G )
16 Channel, Low Cost, GPS/GNSS Locked Rubidium 10 MHz Frequency Reference
NR2316D-R
A solid, 16 channel platform. Rubidium source provides outstanding stability < 1 ppb/year. Transient and fault protected channels designed for the a high level electromagnetic environment to provide years of reliable service. AC and DC power options available for critical installation.
•16 channel 10 MHz reference with built-in GNSS receiver.
•Rubidium source stability < 1 ppb/year
•16 channels very often eliminate the need for a distribution amplifier.
•Harmonics are well below -30dB.
•Chassis is 1 RU (~1.7 inches) and saves valuable rack space.
•All inputs and outputs are transient protected.
•Built-in test.
Optional Networking and SNMP available (for a 10 channel platform see NR2310D-O/G )
Kits are available that include antenna, cables and power supply. Several features can be customized at the factory – frequencies other than 10 MHz either from a unique crystal or with a built-in synthesizer that is GNSS-locked. Time stamping capability to 100ns resolution. To meet unique requirements, we have shipped product with output features requiring a custom amplitude, square wave output, high voltage and high current drive.
