Catalog

10 Channel Low Noise Rubidium Frequency Reference with Display and Networking – NR2310D-R

NR2310D-R-O

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. Rubidium stability < 1 ppb/year.

• 10 transient and fault protected channels with local indicators on the front and rear panel.
• Option-operates from AC or DC power sources..
• Monitor and set alert limits on each output.
• aging less than 5E-11/month
• temperature stability <5E-10 0 to 50C
• Warm-up time , 12 min
• High stability PPS option available , < 100 ps -P-P (see curve)
• Available with BNC or SMA output connectors
• Also available with 10 MHz square CMOS outputs.

10Hz     -130
100Hz   -140
1K         -145
10K       -150

10 Channel, GNSS Locked Low Noise Rubidium Frequency Reference with Display and Networking – NR2310D-ROG

NR2310D-ROG

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.

• 10 transient and fault protected channels with local indicators on the front and rear panel.
• Option-operates from AC or DC power sources..
• Monitor and set alert limits on each output.
• aging less than 5E-11/month (unlocked)
• temperature stability <5E-10 0 to 50C (unlocked)
• Warm-up time , 12 min
• High stability PPS option available , < 100 ps -P-P (see curve)
• Available with BNC or SMA output connectors
• Networking with SNMP
• Additional stability options available- see additional info tab
• External lock to PPS option

10Hz     -130
100Hz   -145
1K         -155
10K       -155

10 Channel Low Phase Noise Rubidium Frequency Reference

NR2310-RO

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.

• Temperature stability <3E-10.
• Harmonics <25 dBc Output amplitude 6.0 dBm.
• Phase Noise (dBc/Hz).

10Hz     -125
100Hz   -140
1K         -145
10K       -150

• Excellent holdover stability <3E-10/month.
• Outputs are fault protected and monitored continuously.
• Available with CMOS outputs (3.3 or 5 Volt)
• Built-in test circuitry throughout the design.
• Power supplies, signal present are monitored.
• Stability options available- See Additional info tab

10 Channel Rubidium Frequency Reference with Display and Networking – NR2310D-R

NR2310D-R

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.

• Temperature stability <3E-10.
• Harmonics <25 dBc Output amplitude 6.0 dBm.
• Phase Noise (dBc/Hz).

10Hz     -85
100Hz   -115
1K         -135
10K       -140

• Excellent holdover stability <3E-10/month.
• Outputs are fault protected and monitored continuously.
• Built-in test circuitry throughout the design.
• Power supplies, signal present are monitored.
• SNMP available
• Also available with 10 MHz square CMOS outputs.

Dual Channel, Low Cost Rubidium Frequency Reference with Display and Networking – NR2110D-R

NR2110D-R

Low Cost dual channel 10 MHz Rubidium frequency reference.  Channels are continuously monitored and displayed locally and accessible via RS232 or Ethernet.

• Two transient and fault protected channels with local indicators on the front and rear panel.
• Option-operates from AC or DC power sources..
• Monitor and set alert limits on each output.
• aging less than 5E-11/month (unlocked)
• temperature stability <5E-10 0 to 50C (unlocked)
• Warm-up time , 12 min
•  BNC output connectors
• Networking with SNMP

10Hz     -85
100Hz   -115
1K         -135
10K       -140

Dual Channel, Low Noise Rubidium Frequency Reference with Display and Networking – NR2110D-R-O

NR2110D-R-O

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.

• Two transient and fault protected channels with local indicators on the front and rear panel.
• Option-operates from AC or DC power sources..
• Monitor and set alert limits on each output.
• aging less than 5E-11/month (unlocked)
• temperature stability <5E-10 0 to 50C (unlocked)
• Warm-up time , 12 min
•  BNC output connectors
• Networking with SNMP

10Hz     -130
100Hz   -140
1K         -145
10K       -150

Dual Channel, GNSS Locked Low Noise Rubidium Frequency Reference with Display and Networking – NR2110D-R-O-G

NR2110D-ROG

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-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.   All channels are continuously monitored and displayed locally and accessible via RS232 or Ethernet. Additional stability options offer thermal and vibration isolation.

• Two transient and fault protected channels with local indicators on the front and rear panel.
• Option-operates from AC or DC power sources..
• Monitor and set alert limits on each output.
• aging less than 5E-11/month (unlocked)
• temperature stability <5E-10 0 to 50C (unlocked)
• Warm-up time , 12 min
• High stability PPS option available , < 100 ps -P-P (see curve)
• Available with BNC or SMA output connectors
• Networking with SNMP
• Additional Stability options available- see additional info tab

10Hz     -125
100Hz   -150
1K         -150
10K       -155

Portable 10 MHz OCXO or Rubidium based GNSS Disciplined Frequency Reference-NT9400-O/G

NT9400-O/G

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.

• Battery life in excess of four hrs.
• PPS signal output.
• 26 channel high-sensitivity, multi-GNSS receiver. supports TRAIM and various position modes, allowing it to output accurate and robust 1 PPS synchronized to UTC time.
• Supports GPS, GLONASS, QZSS, SBAS, Active Anti-Jamming and Advanced Multi-path Mitigation functions.
  
• 10 MHz harmonic distortion <-30dBc.
• Optional synthesized secondary channel that can range from 14 kHz to 10 MHz.
  
• Optional NTP time server.
  
• Optional Internet connectivity.
• Event input records to 100 ns resolution.
• Holdover drift < 1 ms/day OCXO, 20 usec/day with Rb.
• IRIG B.
• Available with Rubidium reference for extended holdover performance.

Three Channel GNSS Locked Rubidium Frequency Reference
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. 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

Three Channel, Rubidium Frequency Reference
NR8403-R

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

Three Channel,Low Noise Rubidium Frequency Reference
NR8403-RO

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

Three Channel GNSS Locked Rubidium Frequency Reference
NR8403-RG

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 )

Dual Channel, GNSS Locked Low Noise Rubidium Frequency Reference with Display and Networking – NR2110D-ROG

NR2110D-ROG-HS

For many applications, the phase noise of a Rubidium reference is not acceptable. The NR2110D-R-O-G-HS incorporates a low noise OCXO that is disciplined to the Rubidium reference. This product also adds two GNSS receivers that brings the long-term stability of GNSS and monitoring. The NR2110D-ROG-HS 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. Additional stability options available for enhanced thermal and vibration isolation. See additional information tab

• Two transient and fault protected channels with local indicators on the front and rear panel.
• Exceptional Allan Deviation < 8E-13
• Option-operates from AC or DC power sources..
• Monitor and set alert limits on each output.
• aging less than 5E-11/month (unlocked)
• temperature stability <5E-10 0 to 50C (unlocked)
• Warm-up time , 12 min
• High stability PPS option available , < 100 ps -P-P (see curve)
• Available with BNC or SMA output connectors
• Networking with SNMP

10Hz     -135
100Hz   -150
1K         -160
10K       -160

Dual Channel, Low Cost Rubidium Frequency Reference

NR2110-R

Low cost dual channel 10 MHz Rubidium frequency reference.  Channels are continuously monitored and accessible via RS232

• Two transient and fault protected channels with local indicators on the front and rear panel.
• Option-operates from AC or DC power sources..
• Monitor and set alert limits on each output.
• Aging less than 5E-11/month (unlocked)
• Temperature stability <5E-10 0 to 50C (unlocked)
• Warm-up time , 12 min
• BNC output connectors
• Simulated PPS output 3.3 or 5 Vdc logic levels

10Hz     -85
100Hz   -115
1K         -135
10K       -140

If lower phase noise is required- see the NR2110-RO