Interference Protection Group meeting 5/18/99 Agenda Minutes of 4/27/99 meeting Interference call-out reports Review of action items: 1. Do we need formal coordination of observing with known transmissions on site (OVLBI, antenna range, etc.)? 2. Meassurement of OVLBI transmission field strengths at the GBT. 3. Progress on suppressing RFI from equipment that has been measured in the anechoic chamber 4. Site radio system (Chuck) 5. Monitor station and anechoic chamber developments (Rick, Rich) 6. Microwave oven in shielded test box (John) 7. Shielded room entrances (John, Rick) 8. RFI considerations for new Education Center (Frank) 9. Use of interference reporting system 10. GBT RFI 'harmful levels' document (Rick) 11. Lab RFI suppression efforts (Rick) 12. Interference at 1612.17 MHz 13. RFI monitor for Education Center 14. Cal and sig/ref switching system system for anechoic chamber (Rich, Chuck, Rick) 15. FCC Class B requirements and test procedures (Rick, Chuck) Requirement for a turret for anechoic chamber Summary of new action items Next meeting time/date