GPS Receivers

GPS & Time Code Instrumentation

No other company in the world can offer our product breadth, precision
and expertise in GPS and time code instruments.
Symmetricom has been providing Timing and Synchronization solutions
for communications and satellite and ground based instrumentation from
the beginning of the GPS program. Our time and frequency generators,
receivers, and other GPS related instrumentation, were the early adopters
of the GPS technology at its inception, and furthered its reliance on the
GPS program as it grew to full operation with satellites hovering 20,000
plus kilometers over the earth.

From minimal infrastructure investment to missile launches we offer GPS
and time code instrumentation solutions for multiple applications and
a wide customer base.
 
>> XLi, GPS Time & Frequency Receiver.
>> XLi SAASM, Time and Frequency Receiver
>> XLi IEEE 1588 Grandmaster
Ultra-Precise, GPS Referenced IEEE 1588 Grandmaster Clock and
>> IEEE 1588 Accuracy Measurement System.
>> XL-GPS, Time and Frequency Receiver
>> XL-750, GPS Time Source for Power Industry.
>> MARK V, GPS P(Y) Code Time & Frequency Receiver.
>> XL-DC, GPS Time & Frequency Receiver.
>> XL-AK, Low Cost GPS Time & Frequency Receiver.
>> ExacTime, GPS Time & Frequency Receiver.
>> 58503B, GPS Time & Frequency Reference Receiver.
>> GPS 605, GPS Synchronized Clock & Time Code Receiver.
>> TymMachine 7000, Programmable Time System.
>> 700, Miniature Time Code Receiver.
>> Remote Time Displays, Remote Time Displays.
>> L1 GPS Antenna, Down / Up Converter.
>> 4410A, GPS Disciplined Rb Oscillator
>> 4411A, GPS Disciplined Crystal Oscillator Reference.

For more information, see the manufacturer's site:
www.symmttm.com/products_gps_time_code_instrumentation.asp

GPS Time & Frequency Receiver

XLi, Time and Frequency System
The modular ultra precision Model XLi Time and Frequency System is the
most precise, versatile and flexible solution for timing and synchronization
requirements.
One of the great design benefits of the XLi is that, because of its variety
of option cards, a company can customize it to fit to their specific
application needs. Whether your application demands redundancy in
power supplies, GPS, or any other function, all it takes is the proper
configuration of cards.
XLi Option Cards
The XLi's wide range of option cards also makes it easy to adapt your XLi
configuration if your application needs change. Plug-and-play cards and
built-in XLi option card recognition software lets you swap out modules
without modifying your operating system.

For more information, see the manufacturer's site:
www.symmttm.com/products_gps_xli.asp

XLi IEEE 1588 Grandmaster

Ultra-Precise, GPS Referenced IEEE 1588 Grandmaster Clock
and IEEE 1588 Accuracy Measurement System

IEEE 1588 Precise Time Protocol (PTP), with nanosecond caliber time
transfer accuracy, provides a significant improvement in synchronization
over Ethernet networks. This technology offers major cost savings in time
distribution since it can be deployed using hardware clocks and standard
Ethernet LAN hubs, switches and Cat 5 cables. The low overhead,
multicast protocol can use the same LAN as normal network traffic.
XLi IEEE-1588 Grandmaster
The XLi IEEE-1588 Grandmaster contains a dedicated 1588 time stamp
processor. Operating at 100Base-Tx line speed with deep time stamp
packet buffers, the XLi Grandmaster can support thousands of 1588
slaves. This is made possible in part by sending periodic 1588 Sync &
Follow_Up messages using multicast addressing, and in part by being
able to quickly and accurately process 1588 slave initiated Delay_Req
and Delay_Resp messages.
IEEE-1588 Grandmaster Measurement Capabilities
 Ideal for measurement purposes, the XLi Grandmaster can also operate
as a 1588 slave. Network elements such as hubs and switches degrade
time transfer accuracy when using 1588 over Ethernet. Switches in
particular add nondeterministic latency and jitter to packet transit times
from a 1588 master to 1588 slaves. As a result, the 1588 slave
synchronization accuracy is degraded from that of the master.

For more information, see the manufacturer's site:
www.symmttm.com/products_gps_XLI_IEEE_1588.asp

XL-GPS Time and Frequency Receiver

Symmetricom’s XL-GPS Time and Frequency Receiver is a high
performance instrument that provides an assortment of precision time and
frequency outputs. This high value, networked managed, time and
frequency instrument supports requirements for, test and measurement,
central timing systems, process automation, range timing systems, power
industry applications and many others.

For more information, see the manufacturer's site:
www.symmttm.com/products_gps_xl-gps.asp

XL-750 GPS Time Source for Power Industry

Symmetricom’s XL-750 GPS Time Source has been developed to
address key power industry timing requirements. Whether it’s the monitor,
control or analysis of the power system, the XL-750 is the cost-effective
GPS time synchronization solution.

The XL-750 directly meets the recent recommendations from NERC
(North American Electric Reliability Council) for event timing at power
substations. Specifically, it fully satisfies NERC’s Recommendation # 12
concerning GPS time-synchronized recording devices.
Using GPS satellites, the XL-750 generates extremely accurate output
pulses and time codes in multiple formats and offers superb timing
accuracy (100nanoseconds to UTC). The XL-750 synchronizes a wide
variety of microprocessor-based power system equipment including:
SCADA systems, remote terminal units (RTUs), protection relays,
sequence of event recorders, digital fault recorders, power/tariff meters
and other intelligent electronic devices (IEDs).

For more information, see the manufacturer's site:
www.symmttm.com/products_gps_XL-750.asp

XL-DC, High-Precision GPS Synchronized Time
and Frequency Receiver

Symmetricom's ultra precise XL-DC provides the highest degree of time
and frequency accuracy available in a GPS timing receiver. Standard
outputs include a 1 PPS, analog IRIG B time code and serial I/O time
strings. A major advantage of the XL-DC is its versatile and modular
architecture. A wide range of time and frequency plug-in options allow
the XL-DC to be customized for specific applications and easily
upgraded at a later time.

For more information, see the manufacturer's site:

www.symmttm.com/products_gps_xl-dc.asp

XL-AK Low-cost GPS Synchronized Time
and Frequency Receiver

The economical rack-mount XL-AK GPS receiver provides ultra-precise
time and frequency. This configurable instrument provides timing outputs
to within 40 nanoseconds rms of UTC/USNO and frequency outputs
accurate to less than 1x10-12, even when tracking satellites with
Selective Availability (SA) implemented. User-configurable outputs
provide significant flexibility in configuring the XL-AK as a central source
for IRIG time codes or output pulses.

For more information, see the manufacturer's site:
www.symmttm.com/products_gps_xl-ak.asp

ExacTime 6000 GPS Time & Frequency Generator

Symmetricom’s ExacTime™ 6000 Time and Frequency Generators are
full featured GPS receivers that offer three time base oscillator options
and a wide range of "off-the-shelf" optional features. ExacTime fits
virtually any GPS time and frequency application.

For more information, see the manufacturer's site:
www.symmttm.com/products_gps_exactime.asp

58503B GPS Time and Frequency Reference Receiver

The Symmetricom 58503B GPS time and frequency reference receiver is a high quality source of precision time, time interval, and frequency in a lightweight compact package. The high-performance 58503B ensures excellent accuracy and reliability— the 58503B delivers precise time and frequency virtually anywhere in the world at an affordable price.

For more information, see the manufacturer's site:
www.symmttm.com/products_gps_58503b.asp

GPS-605 GPS Synchronized Clock
and Time Code Generator

Symmetricom's GPS-605 is a low-cost, high-performance GPS receiver
and time display. Time is precisely referenced to UTC and displayed in
days, hours, minutes and seconds. The primary outputs of the GPS-605
are an IRIG B time code and a precise 1 PPS. Time and status
information are also available via the RS-232. The GPS-605 combines
the performance and key features usually found in large, expensive units
in a cost-effective configuration.

For more information, see the manufacturer's site:
www.symmttm.com/products_gps_gps605.asp

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