Interference Protection Group meeting 7/27/99 Agenda Minutes of 7/6/99 meeting Interference call-out reports Review of action items: 1. IAU Symposium of Light Pollution and RFI (Rick) 2. Emissions from the new diesel on site 3. GBT RFI 'harmful levels' document and measurement procedures (Rick) 4. Blanking and sig/ref switching for anechoic chamber (Rich, Tim) 5. Site radio system (Chuck) 6. Microwave oven in shielded test box (John) 7. Shielded room entrances (John, Rick) 8. Monitor station developments (Rick) 9. Progress on suppressing RFI from equipment that has been measured in the anechoic chamber 10. Measurement of OVLBI transmission field strengths at the GBT. 11. RFI considerations for new Education Center (Frank) 12. RFI survey plan for GBT commissioning (Rick) 13. Lab RFI suppression efforts (Rick) 14. Interference at 1612.17 MHz 15. RFI monitor for Education Center 16. 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