VLBA RFI Bulletin 3: Roving Sands '98 Gears Up: Each year the combined forces of the US and NATO stage a 5 to 10 day series of war games throughout the eastern half of NM. The VLA and the VLBA-PT, VLBA-LA, and VLBA-FD sites experience a considerable increase in RFI during the time these games are going on, especially in P-band (90 cm, 328 MHz), L-band (20 cm, 1400 MHz), and (for VLBA sites) S-band (13 cm, 2300 MHz). Frequencies which are typically in heavy use during the games are listed below: 1357 MHz 1365 MHz 1369 MHz 1385 MHz 1393 MHz 1432.5 MHz 1365 MHz In addition, the following 2 GPS frequencies may experience an increase in jamming activity during the games: 1227.6 MHz 1575.42 MHz Preliminary plans are underway for the scheduling of the 1998 Roving sands war games, a copy of that schedule is shown below: ROVING SANDS '98 "wheels-up" Preliminary schedule (in MST) DATE T-START T-STOP COMMENTS _________________________________________________________________ THURSDAY, APRIL 16, 1998 1200 2100 Preliminary tests FRIDAY, APRIL 17, 1998 1200 2100 Preliminary tests SATURDAY, APRIL 18, 1998 1500 1800 Day games SATURDAY, APRIL 18, 1998 2100 2300 Night games SUNDAY, APRIL 19, 1998 1500 1800 Day games SUNDAY, APRIL 19, 1998 2100 2300 Night games MONDAY, APRIL 20, 1998 1500 1800 Day games MONDAY, APRIL 20, 1998 2100 2300 Night games TUESDAY, APRIL 21, 1998 1500 1800 Day games TUESDAY, APRIL 21, 1998 2100 2300 Night games WEDNESDAY, APRIL 22, 1998 1500 1800 Day games WEDNESDAY, APRIL 22, 1998 2100 2300 Night games THURSDAY, APRIL 23, 1998 1500 1800 Day games THURSDAY, APRIL 23, 1998 2100 2300 Night games FRIDAY, APRIL 24, 1998 1500 1800 Day games FRIDAY, APRIL 24, 1998 2100 2300 Night games