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Datum Systems, Inc. designs and manufactures communications electronics equipment. Our innovative designs are used in thousands of satellite and wireless systems throughout the world.

Our Business

Datum Systems specializes in satellite ground station modem design, leading the way with high performance, low cost designs for over 16 years. Our equipment is in use on almost every continent of the earth. Our main customers are system integrators and equipment providers, many of whom we private label our equipment for.

Recent News:

1:1 Redundancy capability added for SnIP equipped modems in firmware 0.73 (August 2008)
 
The M500 series modems have always had the ability to operate in 1:1 redundancy mode. But the feature was disabled with the SnIP Ethernet interface installed, even if not enabled, because it pre-empted the redundancy communications channel. This new version 0.73 firmware for the modem moves redundancy communications to the standard remote control port when a SnIP is installed. See the M500-Downloads page for download of the new firmware version 0.73 with companion version 30 or 31 FEC firmware.

New SnIP kernel and filesystem now available (May 9, 2008)
 
Datum Systems has just released a revised Linux kernel and root filesystem build for the SnIP875 Ethernet interface card. The important updated component is a new refined internal hdlc driver that can easily handle connection speeds to the modem at up to its max of 29.52 Mbps without problems. The new software is available on the SnIP Downloads page.

8QAM - Modulation now available (April 2008)
 
Datum Systems has just released a new set of Main Unit and FEC code that supports several new features. The main addition is the ability to operate in 8QAM modulation mode, which studies have shown offers from 0.1 to 0.8 dB of improvement over 8PSK modulation. To use this mode you must currently have 8PSK capability (M511 or M523 Feature Set) and any version of TPC FEC. See the M500-Downloads page for download of the new firmware version 0.72 with companion version 30 FEC firmware.

HSSI - High Speed Serial Interface now available (March 2008)
 
Datum Systems has just released its new HSSI interface designed mainly for connecting to routers at up to 29.52 Mbps. This new low-cost HSSI interface will be available beginning immediately. An HSSI Appendix has been added to the M500 Documents page. Firmware version 0.63 supports this option.

New "Advanced" TPC modes now available for the PSM-500 Series! (January 2008)
 
For all units with any of the TPC FEC cards this new Advanced mode optimizes TPC performance over a wider range of operating parameters that any other TPC. Version 0.63 and later Unit firmware provides this important new feature for all TPC equipped PSM-500 modems.

New "S-Tec" FEC Option card now available for the PSM-500 Series! (December 2007)
 
Years in development, this new FEC developed at the University of South Australia offers incredible performance at a reasonable price. See the revised PSM-500 Manual Appendix A for preliminary waterfall curves of its performance.

    Our new PSM-500 Modem Series offering exciting features like 8PSK, 8QAM, 16QAM and higher data rates. See the News Page for more information and a matrix of features and options. We have recently added a full line of Datum "Advanced" TPC modes that outperform anything on the market. See the Support page to download the latest updates.

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The new PSM-500 70 MHz IF Modem is ideal for Large or Hub stations. It can also be built with a 140 MHz IF. This unit now replaces the very popular PSM-4900 70 MHz IF modem.

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The new PSM-500L with L-Band Transmit and Receive is ideal for single modem remote sites where the lowest cost can be achieved with a simple BUC and LNB.

These modems are also available in a special version with Ethernet/IP enabled interfaces including a new powerful Ethernet interface nearing completion called the "SnIP". It runs open source Linux with its extensive routing features.

See Our New Support page for important information.
New PSM-500 Software/Firmware update tools are now available in the Support section. The latest Firmware Version 0.73 (Aug/08) supports many new TPC modes, 8QAM modulation and contains PSM-4900 compatible remote control protocols is also available there.

New Firmware - Version 1.03 (Dec/07) available for the PSM-4900 series. A Windows based Firmware update program is also available there.

The Turbo Product Codes FEC option is available for all modems in the PSM-4900 and PSM-500 Series, plus a new 16K block size TPC for the PSM-500 further improves performance. The incredible "S-Tec" Turbo Convolutional Code FEC for the PSM-500 series is now shipping. This FEC offers almost unheard of performance at a very attractive price! These FECs make the PSM-500 the highest performance, lowest cost satellite modems available bar none - Check the specs and compare for yourself.

See our News Page for information about our new modems in development and Interface devices. Datum News Page

Two servers for redundancy - The main at www.datumsystems.com and the alternate site at www.datumsystems.us . These two servers are geographically separated.

Contact Information

Want more information about Datum Systems, its products or designs? You may call or write us at the numbers below.

Telephone
408-365-9745
FAX
408-365-0471
Postal address
23 Las Colinas Lane, #112, San Jose, CA 95119
Electronic mail  - addresses modified to prevent spam, you must type out.
General Information: Mike (at) DatumSystems.com
Sales: Sales (at) DatumSystems.com
Customer Support: Support (at) DatumSystems.com
Webmaster: Mike (at) DatumSystems.com
 

Send mail to Mike (at) datumsystems.com with questions or comments about this web site.
  Last modified: September 04, 2008