Sirius Radio Completes In-Orbit Testing of Sirius-2

Sirius Satellite Radio ,
the satellite radio broadcaster, today announced that in-orbit testing of its
second satellite, Sirius-2, has been completed.
Payload and signal testing
showed all systems performing to specification.
Sirius expects to launch
Sirius-3, the final satellite in its three-satellite constellation, in
November, and is scheduled to begin broadcasting its audio entertainment
service in January 2001.
A revised delivery date for Sirius-4, the company’s
ground spare satellite, is now expected later this month.

From three orbiting satellites, Sirius (http://www.siriusradio.com) will
directly broadcast up to 100 channels of digital-quality programming to
motorists throughout the continental United States for a monthly subscription
fee of $9.95.
Sirius will deliver 50 channels of commercial-free music in
virtually every genre, and up to 50 channels of news, sports and information
such as CNBC, NPR, SCI FI Channel, Classic Radio and the BBC.
Sirius’ broad
and deep range of virtually every music format as well as its news, sports and
entertainment programming is not available on conventional radio in any market
in the United States.

Sirius has alliances to install three-band (AM/FM/SAT) radios in Ford,
Chrysler, BMW, Mercedes, Mazda, Jaguar and Volvo vehicles as well as
Freightliner and Sterling heavy trucks.
In addition, Sirius has alliances
with numerous electronics manufacturers to furnish radios to automakers, as
well as adapters to electronics retailers that will allow radios in existing
vehicles to receive Sirius broadcasts.

Any statements that express, or involve discussions as to, expectations,
beliefs, plans, objectives, assumptions, future events or performance with
respect to Sirius Satellite Radio Inc. are not historical facts and may be
forward-looking and, accordingly, such statements involve estimates,
assumptions and uncertainties which could cause actual results to differ
materially from those expressed in the forward-looking statements.
Accordingly, any such statements are qualified in their entirety by reference
to the factors discussed in Sirius’ Annual Report on Form 10-K for the year
ended December 31, 1999.
Among the key factors that have a direct bearing on
Sirius’ results of operations are the potential risk of delay in implementing
Sirius’ business plan; dependence on satellite construction and launch
contractors; risk of launch failure; unproven market and unproven applications
of existing technology; unavailability of Sirius radios; and Sirius’ need for
additional financing.