Brandywine - Compact Airborne Timing Unit (CATU)

  • Ruggedized 
  • Flight Qualified 
  • Available with vibration-isolated OCXO or CSAC Oscillator options 
  • Gigabit Ethernet 
  • GNSS, SAASM, or M-Code supported 
  • Designed for GPS denied environments

GPS Antenna Input

Signal Type

GPS CA GPS P(Y) (optional) GPS M-Code

Input Signal Level (at receiver RF connector)

P(Y) on L1: -153 dBW to -121 dBW 

P(Y) on L2: -153 dBW to -124 dBW 

C/A on L1: -150 dBW to -119 dBW

Minimum Operating Bandwidth

L1 1575.42 MHz ± 10.23 MHz 

L2 1227.60 MHz ± 10.23 MHz

Input Impedance

50 Ω (nominal)

Input VSWR 

2.5:1 maximum at center frequency of L1 and L2. 


Power 

Number of Inputs

1

Voltage

28VDC per MIL-STD-704F 

Rated Current Draw

1A

Interface Type

IS-GPS-154 


Phase Noise 

G-sensitivity

5x10-11/G 

Vibration Frequency Range

10Hz-2000Hz 

Allan Deviation

1 second 1x10-11 

10 seconds 1x10-11 

100 seconds 5x1011


1PPS Output 

Number of Outputs

2

Signal Type

Per ICD-GPS-060B 

Signal Rate

1 pulse per second 

Rising Edge

On Time 

Rise Time

<50ns 

Signal Type

Sinusoid

Fall Time

<100ns 

Pulse Width

20 µs ±5% default 

Output Amplitude

10V ±10% 

Coherency

1PPS = 10MHz/106 


10 MHz Output 

Signal Type

Sinusoid

Output Frequency

10 MHz 

Output Amplitude

13dBm/1Vrms 

Harmonic Distortion

-30dBc

Frequency Accuracy (Locked)

1x10-12 avg. over 24 hours 

Holdover

1µSecond 24 hours 


Ethernet Interface

Signal Type

Gigabit Ethernet (IEEE 802.3ab) 

Protocols Supported

NTPv4, SNMPv3, SSH 


Physical 

Dimensions

7.29” x 4.52” x 2.36” (185.166mm x 114.808mm x 59.944mm)

Weight

3 lbs. (1.36 kg) nominal 

Connectors

J1 Antenna, SMA 

J2, J3 1PPS SMA 

J4, J5 10 MHz SMA 

J6 D-Sub17 for KLIF, DS/101-232 

J7 1Gb Ethernet

Battery

MMCx

Antenna Supply

5V @ 35mA 


Environmental

Operating Temperature

-40°C to +55°C 

Altitude

41000 ft. 

Humidity

95% non-condensing 

Environmental Certifications

Tested to the following specifications: 

MIL-STD-810F, MIL-STD-461: CS101, CS114, CS115, CS116

More Product Information

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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Brandywine - Compact Airborne Timing Unit (CATU)