{ "meta": { "lookup": "08850.55f4.5a0.fm.radiodns.org", "bearer": "fm:5a0.55f4.08850", "gcc": "5a0", "pi": "55f4", "mhz": 88.5, "station": { "call": "WAMU", "pi": "55f4", "mhz": "88.50", "facility": "65399", "city": "WASHINGTON", "state": "DC", "kind": "full-service" }, "checked_at": "2026-10-21T13:55:44+00:00", "fqdn": "radiodns.prss.org", "name": "NPR DR1 - Breaking News Channel" }, "verdict": { "level": "warn", "headline": "Working, with 5 suggestions" }, "counts": { "pass": 13, "warn": 5, "fail": 0, "info": 11 }, "sections": [ { "title": "What is being checked", "steps": [ { "status": "info", "title": "WAMU - WASHINGTON, DC", "detail": "From the NRSC list: 88.50 MHz, PI code 55F4, FCC facility 65399.", "fix": "" }, { "status": "info", "title": "RadioDNS lookup name", "detail": "08850.55f4.5a0.fm.radiodns.org (frequency 88.50 MHz, PI 55F4, country code 5a0)", "fix": "" } ], "extra": [] }, { "title": "1. RadioDNS registration", "steps": [ { "status": "pass", "title": "Registered", "detail": "08850.55f4.5a0.fm.radiodns.org points to the station's authoritative domain: radiodns.prss.org", "fix": "" } ], "extra": [] }, { "title": "2. Service discovery (SRV records)", "steps": [ { "status": "info", "title": "_radiospi._tcp.radiodns.prss.org: not published", "detail": "", "fix": "" }, { "status": "pass", "title": "_radioepg._tcp.radiodns.prss.org published", "detail": "priority 10, weight 60, port 80 -> radiodns.prss.org [target is an alias of contentdepot.prss.org]", "fix": "" }, { "status": "warn", "title": "SRV target radiodns.prss.org is a CNAME alias", "detail": "DNS rules (RFC 2782) say an SRV record should point at a name that has address records directly, not at an alias. Many resolvers cope, some do not.", "fix": "Give radiodns.prss.org its own A/AAAA record (or point the SRV record at the real host name)." }, { "status": "warn", "title": "Only the older _radioepg record is published", "detail": "", "fix": "Add _radiospi._tcp.radiodns.prss.org on port 443 as well, so receivers that use HTTPS can find the SI file." }, { "status": "info", "title": "_radiovis._tcp: not published", "detail": "Slideshow/visuals (STOMP) - optional, only needed for a live slideshow service.", "fix": "" }, { "status": "info", "title": "_radiopush._tcp: not published", "detail": "Slideshow/visuals (Server-Sent Events) - optional, only needed for a live slideshow service.", "fix": "" }, { "status": "info", "title": "_radiovis-http._tcp: not published", "detail": "Slideshow/visuals (HTTP) - optional, only needed for a live slideshow service.", "fix": "" } ], "extra": [] }, { "title": "3. Service Information file (SI.xml)", "steps": [ { "status": "pass", "title": "HTTP endpoint http://radiodns.prss.org/radiodns/spi/3.1/SI.xml answered", "detail": "386 ms, 261,180 bytes", "fix": "" }, { "status": "pass", "title": "Content type is application/xml", "detail": "", "fix": "" }, { "status": "warn", "title": "SI file has no caching headers", "detail": "", "fix": "Add Cache-Control: max-age (for example 86400 for 24 hours). Without it, receivers guess - and some ignore the content." }, { "status": "pass", "title": "The file follows the official SI schema (current (3.4/3.5))", "detail": "Validated against the schema published by WorldDAB/RadioDNS.", "fix": "" } ], "extra": { "links": [ [ "Make an SI file accessible (PDF)", "https://radiodns.org/wp-content/uploads/2014/02/HOWTO-MakeSIandXSIfilesaccessibletoRadioDNSHybridRadiodevices.pdf" ], [ "Build an SI file with RadioDNS's tool", "https://si.radiodns.org/" ] ] } }, { "title": "4. Your station in the file", "steps": [ { "status": "info", "title": "76 services in the file", "detail": "", "fix": "" }, { "status": "pass", "title": "Station found: SAT A4-C4-DR1", "detail": "Matched on bearer fm:5a0.55f4.08850", "fix": "" }, { "status": "pass", "title": "Short name: WAMU", "detail": "", "fix": "" }, { "status": "pass", "title": "Medium name: SAT A4-C4-DR1", "detail": "", "fix": "" }, { "status": "pass", "title": "Long name: NPR DR1 - Breaking News Channel", "detail": "", "fix": "" }, { "status": "warn", "title": "No short description", "detail": "", "fix": "Add a one-sentence description (up to 180 characters)." }, { "status": "pass", "title": "Long description present", "detail": "Reserved for NPR Breaking News Channel only.", "fix": "" }, { "status": "info", "title": "No keywords", "detail": "Optional.", "fix": "" }, { "status": "pass", "title": "1 link", "detail": "https://wamu.org/", "fix": "" }, { "status": "pass", "title": "The element matches the registration", "detail": "fqdn radiodns.prss.org, service identifier 00000000000007e4", "fix": "" } ], "extra": [] }, { "title": "5. Logos", "steps": [ { "status": "info", "title": "No logos in the file", "detail": "Optional, but receivers will show no station logo.", "fix": "Provide all five standard sizes (32x32, 112x32, 128x128, 320x240, 600x600) or none." } ], "extra": [] }, { "title": "6. Transmitters and streams", "steps": [ { "status": "info", "title": "Other bearer: hd:292.0ff77.2", "detail": "Not checked by this tool.", "fix": "" }, { "status": "warn", "title": "Stream OK: https://ice24.securenetsystems.net/WAMU?playSessionID=F9F81C04-9409-2547-DFA70E4E1AF03C7B", "detail": "audio/aac, 64 kbps\nThe file says audio/aacp but the stream answers audio/aac.\nThe file says 128 kbps but the stream reports 64 kbps.\nNo offset set (optional): if the stream runs behind the broadcast, an offset in milliseconds lets receivers line the two up.", "fix": "" }, { "status": "pass", "title": "FM bearer fm:5a0.55f4.08850", "detail": "cost 20", "fix": "" }, { "status": "info", "title": "Other bearer: hd:292.0ff77", "detail": "Not checked by this tool.", "fix": "" } ], "extra": [] } ] }