![]() ![]() NRQZ coordination is required for all new or modifed, permanent, fixed, licensed transmitters inside the NRQZ, as specified for federal transmitters by NTIA manual section 8.3.9 and for non-federal transmitters by the FCC in 47 CFR section 1.924. Karen O’Neil, Assistant Director for Green Bank Telescope Operations and Site Director, briefly explains the NRQZ and the WVRAZ.Ĭoordination Requirements: Federal and State of WV The following black and white map is from the NTIA Manual of Regulations and Procedures for Federal Radio Frequency Management (Redbook). The NRQZ is bounded by NAD-83 meridians of longitude at 78d 29m 59.0s W and 80d 29m 59.2s W and latitudes of 37d 30m 0.4s N and 39d 15m 0.4s N, and encloses a land area of approximately 13,000 square miles near the state border between Virginia and West Virginia. 11745 (November 19, 1958) and by the Interdepartment Radio Advisory Committee (IRAC) in Document 3867/2 (March 26, 1958) to minimize possible harmful interference to the National Radio Astronomy Observatory (NRAO) in Green Bank, WV and the radio receiving facilities for the United States Navy in Sugar Grove, WV. The National Radio Quiet Zone (NRQZ) was established by the Federal Communications Commission (FCC) in Docket No. Contact the NRQZ Administrator at 30 or by email. ![]() Sugar Grove Research Station Coordination.Coordination Requirements: Federal and State of WV.This information is deprecated in favor of the new NRQZ documentation managed by Observatory Spectrum Management eXtra-Large Proposals Expressions of Interest.Thank you for your patience and support during this time of transition. Your donations are at work in many, many ways – sometimes behind the scenes, making big changes to NWPB’s technical infrastructure. Overall, the project thus far has been successful in the fact that we have changed our entire audio delivery system, and changed satellite uplink sites, AND developed an internal app within a year – during a pandemic, nonetheless!Īnd it’s thanks to all our listener members for their donations. Several backup systems added with NPR’s network, meaning a more stable, reliable audio delivery. More efficient use of donations as the new system is less expensive.ģ. These are short term obstacles on the path to providing you, and other listeners, with long term benefits of the more robust delivery system:ġ. All pieces work as intended – despite the the lower audio quality and brief silences. With that additional internet service, we hope that the sound quality will improve.įor the team at NWPB and NPR, this process took almost a year and had many components, new hardware, connections, and even an internal app development project. NWPB will, however, be expanding that capacity by adding a second internet service soon. As a result, NWPB radio is delivered to you at a lower quality. While i t’s more reliable, there is less c apacity for data delivery because it’s a more crowded network. Now NWPB connects with NPR, using internet-based audio delivery. The satellite uplink switch to NPR in Washington, D.C. While that had a large data capacity, it also had many weak nesse s, chief of which were backhoes and diggers, digging up the line. Previously, NWPB was on a physical buried line – one single wir e – delivering audio to Colorado. When NWPB c hanged locations, we also changed audio delivery technologies. On February 27, NWPB moved our satellite uplink source from Colorado Public Radio to NPR in Washington, D.C. Please, know that we are not satisfied with the quality of our broadcast s and are working every day to resolve these issues. Let’s answer those questions about NWPB and learn why things are different right now, temporarily. How frustrating! Then, there’s double audio. You’re listening and suddenly, there’s several minutes of silence. The length of the lines are indicative of the delay between those two nodes. Each line is drawn between two nodes, representing two IP addresses. Partial map of the Internet based on the Janudata found on. ![]()
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