Washington - Mar 7, 2007 - On March 1, 2007, the Media Bureau fo the FCC released a public notice that revised AM station Pre-sunrise Service Authorizations (PSRA) and Post-sunset Service Authorizations (PSSA) because of the change to the start of Daylight Saving Time. As a result of an unanticipated computer problem that produced erroneous power levels on certain recalculated authorizations, the FCC has suspended the use of its recalculated PSRAs and PSSAs until the agency corrects the computer errors and calculates the correct power levels.

Tto permit AM stations currently operating with PSRAs and PSSAs to continue to do so in communities with DST, for the period March 11 (the date on which DST will commence) through March 31, 2007, licensees should use the April DST advanced powers and time periods shown on their current PSRAs and PSSAs for their pre-sunrise and post-sunset operations.

The FCC is in the process of correcting the computer problem that resulted in the erroneous PSRAs and PSSAs. After the problem has been corrected, the FCC will recalculate and publish permissible PSRA and PSSA operating parameters for all eligible AM stations and will issue a public notice advising when this process has been completed.

For additional information, or for any AM station experiencing interference it believes to be the result of PSRA or PSSA operation by another station during the month of March 2007, contact Charles Miller, Susan Crawford or Son Nguyen of the FCC Media Bureau Audio Division at 202-418-2700.
DA 07-938