Brandywine - QFS-106 6 Output Free-Running Frequency Standard
- High stability OCXO or rubidium oscillator
- 6 individually buffered outputs
- Low phase noise output buffers
The QFS-106 is a high performance frequency standard. The unit provides 6 output channels of a single reference frequency, typically 10 MHz.
The internal reference oscillator options available are: free running OCXO or free running rubidium oscillator.
The QFS-106 has 6 individually buffered low phase noise outputs.
Each output has a level detector that will indicate loss of an output or overload via the front panel LED.
Power supply options include 115/230 VAC, 36 – 72 VDC, 18 – 36 VDC, or 09 – 18 VDC.
The QFS-106 is configured as a 1U 19” rack mount unit.
Variations
Model Number |
Description |
Oscillator Type |
Power Supply |
Form Factor |
Power Type |
Output Format |
Number of Outputs |
Input Format |
QFS-106 |
Free-Running Quartz Frequency Standard - 10 MHz Output - 6 Outputs - 115/230V AC Power Supply |
Quartz |
Single AC |
1U |
115/230V AC |
10 MHZ |
6 |
10MHZ |
QFS-106-DC12 |
Free-Running Quartz Frequency Standard - 10 MHz Output - 6 Outputs - 9-18V DC Power Supply |
Quartz |
Single DC |
1U |
9-18V DC |
10 MHZ |
6 |
10MHZ |
QFS-106-DC24 |
Free-Running Quartz Frequency Standard - 10 MHz Output - 6 Outputs - 18-36V DC Power Supply |
Quartz |
Single DC |
1U |
18-36V DC |
10 MHZ |
6 |
10MHZ |
QFS-106-DC48 |
Free-Running Quartz Frequency Standard - 10 MHz Output - 6 Outputs - 36-72V DC Power Supply |
Quartz |
Single DC |
1U |
36-72V DC |
10 MHZ |
6 |
10MHZ |
RFS-106 |
Free-Running Rubidium Frequency Standard - 10 MHz Output - 6 Outputs - 115/230V AC Power Supply |
Rubidium |
Single AC |
1U |
115/230V AC |
10 MHZ |
6 |
10MHZ |
RFS-106-DC12 |
Free-Running Rubidium Frequency Standard - 10 MHz Output - 6 Outputs - 9-18V DC Power Supply |
Rubidium |
Single DC |
1U |
9-18V DC |
10 MHZ |
6 |
10MHZ |
RFS-106-DC24 |
Free-Running Rubidium Frequency Standard - 10 MHz Output - 6 Outputs - 18-36V DC Power Supply |
Rubidium |
Single DC |
1U |
18-36V DC |
10 MHZ |
6 |
10MHZ |
RFS-106-DC48 |
Free-Running Rubidium Frequency Standard - 10 MHz Output - 6 Outputs - 36-72V DC Power Supply |
Rubidium |
Single DC |
1U |
36-72V DC |
10 MHZ |
6 |
10MHZ |
Frequency Outputs
Number of Outputs |
6 |
---|---|
Frequency |
10 MHz Standard |
Optional |
1, 10, 10.492, 12.8, 13, 19.6608, or 64.8 MHz outputs |
Levels |
1 Vrms into 50 ohm (13 dBm) |
Distortion |
Less than 30 dBc |
Connector Type |
BNC |
OCXO Oscillator Option
Stability |
1 x 10-8 at -30 to -60°C |
---|---|
Aging |
5 x 10-8 per year |
Rubidium Oscillator Option
Stability |
±1 x 10-10 at 0 to 50°C |
---|---|
Aging |
5 x 10-11 per month |
Phase Noise at 10 MHz
1 Hz |
-90 dBc/Hz |
---|---|
10 Hz |
-110 dBc/Hz |
100 Hz |
-140 dBc/Hz |
1 kHz |
-150 dBc/Hz |
10 kHz |
-157 dBc/Hz |
Environmental
Temperature |
-30 to +60°C |
---|---|
Humidity |
90% non-condensing |
Power
Power |
115/230 VAC |
---|---|
Optional |
09 – 18 VDC, 18 – 36 VDC, or 36 – 72 VDC |
Physical
Dimensions |
19.00” x 6.150” x 1.720” (L x W x H) |
---|---|
Weight |
3 lbs. nominal |
More Product Information
- 1U 19” rack mount
- Dual Redundant hot swappable Power Supplies
- Dual GPS Disciplined Modules

- Network Time Server
- Dual Redundant Version Available
- Complete Remote Network Control using Standard Web Browser
- SA-ASM GPS Receiver
- 10MHz, 1PPS IRIG B, Serial and Time Codes
- Timing Accuracy 40ns rms to UTC
- 1PPS, Have Quick Inputs

-
Dual inputs with automatic switchover
-
10 individually buffered outputs of 3 signal outputs
-
Have Quick, BCD and 1PPS outputs compliant with ICD-GPS-060

- SOSA Aligned
- 3U VPX Form-Factor
- Reduced SWaP applications
- Ruggedization Level 200
- 11 Radial Clock Outputs OpenVPX Backplane support for 1000BASE-KX or 10GBASE-KR
- Optional Chip Scale Atomic Clock (CSAC) Holdover
- Optional Low Phase Noise (LPN) Analog output
- Optional secure GPS (M-code)
- Optional Timecode I/O

Brandywine’s RFS-700D is a miniaturized Rubidium Frequency Reference in a compact ruggedized package designed for mounting on a DIN rail system. The RFS-700D is capable of outputting 7x 10MHz frequency reference with low phase noise.

- Modular design with multiple reference paths built in for high-availability.
- 6 expansion slots for customization and expansion.
- Industry-first GPS integrity checking with Timewall™
- Unique optical crosslink architecture for either Master-Slave hierarchical setups or Master-Master crosschecking and failover
- LCD display and keypad for basic status and configuration – secure web browser for detailed setup.
- IRIG A & B, NASA 36 and 1 PPS inputs standard
- HaveQuick sync option
- Propagation delay compensation
- Zero latency time reads
- Match Time output
- IRIG B time code output
- External Event time tags
- On-board GPS receiver option
- Three user programmable rates
- Conduction Cooled Version

eZ Processing is the solution for telemetry data processing, analysis and display (real time or playback). It allows the capture of the data either from a PCM signal or directly through data sent on Ethernet (IRIG 106 Chapter 10) by the receiver.
It performs the frame synchronization, Engineering Unit conversion, data display and storage, as well as data subset dissemination to dedicated analysis tools. It can accommodate multiple display stations, each having selectable parameters and displays. When used in a system with Safran Defense & Space, Inc. (formerly Safran Data Systems, Inc.) data acquisition units like the XMA or MDR, the software parameter database is automatically updated by eZ configuration software, reducing the set-up time and preventing all errors.

- Compact size and low cost
- Uses Network Time Protocol to synchronize computers and other devices
- Programmable serial message compatible with almost any time display
- Browser based user interface for easy setup
- GPS synchronized
- LED colons indicate GPS lock status

Brandywine Communications
Brandywine Communications Inc. offers superior products to the time and frequency marketplace. Our mission is to provide the finest equipment coupled with excellent before and after sale service. Our staff of dedicated professionals, based in Tustin, CA, represents over 100 years of collective experience in design, manufacturing and sales of precision time and frequency products. Many of our products are made here in the United States, which allows for quick turnarounds and custom design.
Products from Brandywine Communications range from components such as Oven Controlled Oscillators to complete timing systems like the top of the line High Performance Timing System (HPTS).
Several state-of-the-art time and frequency systems are available from Brandywine. The system product line includes single and dual-redundant models, GPS synchronization and a wide range of oscillator choices: TCXO, OCXO, high-stability OCXO and Rubidium types. GPS choices include both C/A code and SAASM models.
Brandywine also is the premier North American distributor of Oscilloquartz, a subsidiary of ADVA Optical Networking. Oscilloquartz is a premier synchronization supplier for telecommunications for wireline and wireless infrastructures throughout the world. This partnership creates a powerhouse of timing and telecommunications that expand Brandywine's services to their customers in the US and Canada.
We supply several major market segments including: Aerospace, US and Municipal governments, telecommunications, US military, power utilities, financial institutions, test ranges, automotive industry, healthcare and schools.
Brandywine Communications, Inc. is certified as a Small Business Organization with the United States Small Business Administration (SBA’s 8(a) Certification Program) and is registered on the System for Award Management (SAM.gov) website which makes us eligible for all awards or grants specified under this provision.
Contact Details
Brandywine Communications Inc. - Ultra-Precision Time & Frequency
2921 Daimler Street, Santa Ana, CA 92705, USA
Phone: +1-714-755-1050
Email: support@brandywinecomm.com
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