VLBA RFI Bulletin 13:  GPS Jamming Continues at WSMR in July:

Scheduled testing of GPS jamming equipment will continue at the White
Sands Missile Range during July, 1998.  The GPS jamming tests are
scheduled for Tuesdays, Thursdays, and Saturdays.  Observers using the
VLBA-PT and VLBA-LA receivers should expect an increased chance of RFI
at the 2 GPS frequencies of 1575 MHz (L1) and 1228 MHz (L2).

The detailed schedule for June, 1998 follows:


Tuesdays:		0601 UTC to 1000 UTC (Except 980721)
Tuesday, 980721:	1200 UTC to 1600 UTC

Thursdays:		0601 UTC to 1000 UTC