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.
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