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To: J Fieb who wrote (36043)9/17/1998 7:13:00 PM
From: J Fieb  Read Replies (1) | Respond to of 50808
 
Here it is. DIVI and many of its partners were there.

NTELSAT / ISOG Tests Prove DVB Plug and Play Interoperability

INTELSAT announced the results of its third round of extensive digital video interoperability
testing. This latest round of tests was designed to achieve "plug and play" operation for both
NTSC and PAL standards, and at several different parameter sets. It was certainly a
watershed for the DVB Project as no less than nine of the systems tested were manufactured
by DVB members.

The tests, conducted 24 February to 4 March at INTELSAT's Technical Labs in Washington, D.C.,
focused on single-channel video compression equipment used for SNG, occasional use and low data
rate contribution applications, and demonstrated how well different manufacturers' digital video
equipment worked together.

The test program was undertaken as a response to requests to resolve equipment incompatibility
issues that INTELSAT had received from the Inter-Union Satellite Operations Group (ISOG --
which represents large broadcasters and INTELSAT Signatories) as well as from other companies
and groups around the world.

For this third round of testing, the participating equipment manufacturers included: California
Microwave/STS; Divicom; DMV/NDS; Magnitude Compression Systems, Inc./General
Instruments; Scientific-Atlanta, Inc.; Tadiran Scopus DVC; Tandberg Television AS; Thomson
Broadcast Systems; Tiernan Communications, Inc.; and Wegener Communications
. Test equipment
for the program was supplied by Adherent Systems (formerly Symbionics)
, Hewlett-Packard and
Tektronix.

All of the manufacturers' equipment was DVB-compliant..

The INTELSAT Test Report documents the results of how well each encoder interoperated with
each of the decoders (IRDs) simultaneously, for each of the parameter sets tested. For each
configuration, the presence of audio, video, MPEG-PSI and subjective lip sync were noted.
Objective lip sync measurements were conducted in several of the test configurations as well.

Vince Walisko, Director of Business Development for INTELSAT's Video Services division, noted,
"The testing has been extremely successful in moving the industry toward a 'plug and play'
environment. The Test Report which has resulted from these efforts should prove a most valuable
guide to the broadcast community. Customers can use the Report to review and select which
equipment group will work best for each specific application they require."

In testing "plug and play," the only equipment adjustments allowed were those which are accessible
to the typical user (i.e., front panel control or PC set-ups). While successful "plug and play" varied
with the different parameter sets, each manufacturer's equipment was able to interoperate with the
equipment of several other manufacturers, as documented in the Test Report.

"This has been a remarkable and unique achievement of cooperation in the industry," said Dick
Tauber, Vice President of Satellites & Circuits at CNN, and ISOG Chairman.

Gary Smith, INTELSAT Vice President of Sales and Marketing, commenting on the interoperability
testing, noted, "We think these tests will give our customers the additional comfort they need to
move ahead with using digital equipment and digital transmission services at an accelerated pace.
This, in turn, helps lead the whole industry forward."

Copies of the Test Report are available from INTELSAT's Corporate Communications Department.
To receive a copy, contact INTELSAT: by telephone: +1 202 944 7500, by fax: +1 202 944 7890
or by email: marketing.communications@intelsat.int. intelsat.int.