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Timing & Frequency

Brandywine HPTS Modular Time & Frequency System
Product Overview

Brandywine has used the HPTS as the main master clock for many time and frequency systems for military applications. The HPTS coupled with the PTS-SAASM provides the critical timing accuracy needed for many applications. Please see our November 2010 newsletter to see how we created a master timing system.


The HPTS is able to function as a master clock to create custom systems requiring crucial timing accuracy. Brandywine won the subcontract to build the master timing system, the Frequency and Time Subsystem (FTSS) for the advanced satellite terminals under the U.S. Army’s Modernization of Enterprise Terminals (MET) program. Please see our MET Press Release to read more.

Brandywine Communications High Performance Timing System is the most accurate frequency system currently available, with inherent 10ns accuracy. This next generation, dual redundant, network-centric, modular timing system includes a novel architecture that allows automatic compensation of propagation delay. The HPTS also offers a range of rubidium options including cesium clocks to ensure the highest accuracy of your timing system. Input synchronization sources include GPS, SAASM GPS, Have Quick, 1PPS, IRIG A, IRIG B, IRIG G, 10MHz, and NTP. Outputs include Have Quick, 1PPS, IRIG A, IRIG B, IRIG G, 10MHz, and NTP. The HPTS is ruggedized and fully qualified for airborne, shipboard, and land mobile applications.

Specifications & Detail
System Accuracy
MCM Timing Accuracy when locked to input reference:
External Have Quick/ 1PPS <15ns
IRIG B (modulated) <2µsec
GPS (calibrated antenna cable delay) <50ns
MCM Frequency Accuracy (24hr avg.)
Rubidium <1x10-12 when locked to input reference
<5x10-11 after 24 hr holdover
Ovenized Quartz <1x10-12 when locked to input reference
<2x10-10 after 24 hr holdover
Short Term Stability 10MHz output
1 sec <1x10-11
10 sec <1x10-11
100 sec <1x10-10
Output Signal Module Accuracy with respect to MCM Main Chassis Remote Location (< 2km)
1PPS +/- 5ns +/- 20ns
Have Quick +/- 5ns +/- 20ns
IRIG B124 +/- 250ns +/- 250ns
IRIG B DC +/- 40ns +/- 60ns
Size 17"W x 7"H (5RU) x 12" D
Weight 24lb nominal
Operating Temperature -10 to +50°C
Emergency Operating 70°C 5 minutes without damage
Non-Operating Temperature -40 to +85°C
Humidity 5% to 95% non condensing
Altitude Operating -1500 to +11000 ft
Non Operating -1500 to +41000 ft

Data Sheet & Downloads