Welcome to the home page for the Radiosonde Replacement System Program.

The goal of this program is to replace the obsolete radiosonde systems currently at the 102 sites comprising the NWS supported network with a modern system.  For a more complete description of the issues facing the network and the detailed objectives of the program, see the overview page.

What's New

The following is a list of the most recent additions to this web site:

	Contracts were awarded for prototype GPS radiosondes on January 7, 2000.  See the GPS radiosondes page for details.
	The program schedule page has been updated.
	A complete set of Statement of Work and Specification documents has now been posted related to the radiosondes, Signal Processing Systems, and Telemetry Receiver Systems.  Draft documents for the upcoming BILS procurement are also viewable.  See the Specifications page for details.
	A new version of the Radiosonde Protocol eXecutive (RPX), has been released for use by vendors developing signal processing systems for GPS radiosondes.

Previous items:

	A contract has been awarded for the Telemetry Receiver System to ATIR U.S., Inc., also known as InterMet Systems.
	The Overview pages give background information on the program
	The Objectives page explains what is to be accomplished
	The System Design page shows the major components of the system
	The User Information page includes the complete software requirements document
	A description of the acquisition approach has been included

Acquisition Team Only
	Notices