Is your station ready for hybrid radio?

What is being checked

• i
  info: KELC - HAWTHORNE, NV

  From the NRSC list: 91.90 MHz, PI code 1BB0, FCC facility 176372.
• i
  info: RadioDNS lookup name

  09190.1bb0.1a0.fm.radiodns.org (frequency 91.90 MHz, PI 1BB0, country code 1a0)

1. RadioDNS registration

• ✓
  pass: Registered

  09190.1bb0.1a0.fm.radiodns.org points to the station's authoritative domain: radiodns.rxdio.com

2. Service discovery (SRV records)

• i
  info: _radiospi._tcp.radiodns.rxdio.com: not published
• ✓
  pass: _radioepg._tcp.radiodns.rxdio.com published

  priority 0, weight 0, port 80 -> radiodns.rxdio.com
• !
  warn: Only the older _radioepg record is published

  What to do: Add _radiospi._tcp.radiodns.rxdio.com on port 443 as well, so receivers that use HTTPS can find the SI file.
• i
  info: _radiovis._tcp: not published

  Slideshow/visuals (STOMP) - optional, only needed for a live slideshow service.
• i
  info: _radiopush._tcp: not published

  Slideshow/visuals (Server-Sent Events) - optional, only needed for a live slideshow service.
• i
  info: _radiovis-http._tcp: not published

  Slideshow/visuals (HTTP) - optional, only needed for a live slideshow service.

3. Service Information file (SI.xml)

• ✓
  pass: HTTP endpoint http://radiodns.rxdio.com/radiodns/spi/3.1/SI.xml answered

  105 ms, 6,699 bytes
• !
  warn: The SI file is served through a redirect

  http://radiodns.rxdio.com/radiodns/spi/3.1/SI.xml -> https://radiodns.rxdio.com/radiodns/spi/3.1/SI.xml

  What to do: Some receivers do not follow redirects. Serve the file directly at this address if you can.
• ✓
  pass: Content type is application/xml
• !
  warn: SI file has no caching headers

  What to do: Add Cache-Control: max-age (for example 86400 for 24 hours). Without it, receivers guess - and some ignore the content.
• !
  warn: The file does not strictly follow the official SI schema (3.1)

  line 16: Element 'mediaDescription': This element is not expected. Expected is one of ( link, geolocation, ##other* ).
  line 39: Element 'mediaDescription': This element is not expected. Expected is one of ( link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 68: Element 'mediaDescription': This element is not expected. Expected is one of ( link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 97: Element 'mediaDescription': This element is not expected. Expected is one of ( link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).

  What to do: Many receivers are forgiving, but strict ones may ignore a file that does not match the schema. RadioDNS's SI tool (si.radiodns.org) can rebuild a correct file.

Guides: Make an SI file accessible (PDF) · Build an SI file with RadioDNS's tool

4. Your station in the file

• i
  info: 3 services in the file
• ✓
  pass: Station found: Nevada.FM

  Matched on bearer fm:1a0.1bb0.09190
• ✓
  pass: Short name: NevadaFM
• ✓
  pass: Medium name: Nevada.FM
• ✓
  pass: Long name: Nevada.FM - KELC - Hawthorne, NV
• ✓
  pass: Short description present

  Keep Central Nevada kinda weird.
• i
  info: No long description

  Optional (up to 1200 characters).
• i
  info: No keywords

  Optional.
• ✓
  pass: 2 links

  Subchannel 1: Nevada.FM (main) https://nevada.fm/stream.mp3
  Subchannel 2: Ambient.FM https://ambient.fm/live
• ✓
  pass: The <radiodns> element matches the registration

  fqdn radiodns.rxdio.com, service identifier kelc

5. Logos

• ✓
  pass: All five standard logo sizes are listed
• !
  warn: Logos have no caching headers

  What to do: Add Cache-Control: max-age (for example 86400 for 24 hours). Without it, receivers guess - and some ignore the content.
• !
  warn: 5 logos downloaded and checked

Preview	Declared	Actual	Size	Result
–	600x600	600x600	238,340 B	238 kB (under 50 kB recommended) https://nevada.fm/assets/KRXX_radiodns_600x600.png
	32x32	32x32	3,171 B	OK https://nevada.fm/assets/KRXX_radiodns_32x32.png
	112x32	112x32	6,541 B	OK https://nevada.fm/assets/KRXX_radiodns_112x32.png
	128x128	128x128	30,024 B	OK https://nevada.fm/assets/KRXX_radiodns_128x128.png
	320x240	320x240	97,274 B	97 kB (under 50 kB recommended) https://nevada.fm/assets/KRXX_radiodns_320x240.png

6. Transmitters and streams

• ✓
  pass: FM bearer fm:1a0.1bb0.09190

  cost 10
• !
  warn: Stream OK: https://nevada.fm/stream.mp3

  audio/mpeg, 64 kbps
  The file says 128 kbps but the stream reports 64 kbps.
  No offset set (optional): if the stream runs behind the broadcast, an offset in milliseconds lets receivers line the two up.