Is your station ready for hybrid radio?

What is being checked

• i
  info: WTMD - TOWSON, MD

  From the NRSC list: 89.70 MHz, PI code 880F, FCC facility 67461.
• i
  info: RadioDNS lookup name

  08970.880f.8a0.fm.radiodns.org (frequency 89.70 MHz, PI 880F, country code 8a0)

1. RadioDNS registration

• ✓
  pass: Registered

  08970.880f.8a0.fm.radiodns.org points to the station's authoritative domain: wtmdradio.org

2. Service discovery (SRV records)

• ✓
  pass: _radiospi._tcp.wtmdradio.org published

  priority 0, weight 0, port 443 -> wtmdradio.org
• ✓
  pass: _radioepg._tcp.wtmdradio.org published

  priority 0, weight 0, port 80 -> wtmdradio.org
• 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: HTTPS endpoint https://wtmdradio.org/radiodns/spi/3.1/SI.xml answered

  114 ms, 15,967 bytes
• ✓
  pass: The HTTPS certificate is valid
• ✓
  pass: Content type is application/xml
• !
  warn: SI file is cached for only 600 seconds

  What to do: Use at least an hour; RadioDNS suggests about 24 hours for the SI file and longer for logos.
• !
  warn: The file does not strictly follow the official SI schema (3.1)

  line 37: Element 'mediaDescription': This element is not expected.
  line 77: Element 'mediaDescription': This element is not expected.
  line 140: Element 'point': '39.331496,' is not a valid value of the atomic type 'xs:double'.
  line 140: Element 'point': '39.331496, -76.657470' is not a valid value of the list type 'doubleListType'.
  line 142: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 180: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 217: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 253: Element 'point': '39.492045,' is not a valid value of the atomic type 'xs:double'.
  line 253: Element 'point': '39.492045, -77.499709' is not a valid value of the list type 'doubleListType'.
  line 255: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 291: Element 'point': '38.327615,' is not a valid value of the atomic type 'xs:double'.
  line 291: Element 'point': '38.327615, -75.196855' is not a valid value of the list type 'doubleListType'.
  (1 more not shown)

  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.
• ✓
  pass: HTTP endpoint http://wtmdradio.org/radiodns/spi/3.1/SI.xml answered

  61 ms, 15,967 bytes
• ✓
  pass: Content type is application/xml
• !
  warn: SI file is cached for only 600 seconds

  What to do: Use at least an hour; RadioDNS suggests about 24 hours for the SI file and longer for logos.
• !
  warn: The file does not strictly follow the official SI schema (3.1)

  line 37: Element 'mediaDescription': This element is not expected.
  line 77: Element 'mediaDescription': This element is not expected.
  line 140: Element 'point': '39.331496,' is not a valid value of the atomic type 'xs:double'.
  line 140: Element 'point': '39.331496, -76.657470' is not a valid value of the list type 'doubleListType'.
  line 142: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 180: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 217: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 253: Element 'point': '39.492045,' is not a valid value of the atomic type 'xs:double'.
  line 253: Element 'point': '39.492045, -77.499709' is not a valid value of the list type 'doubleListType'.
  line 255: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 291: Element 'point': '38.327615,' is not a valid value of the atomic type 'xs:double'.
  line 291: Element 'point': '38.327615, -75.196855' is not a valid value of the list type 'doubleListType'.
  (1 more not shown)

  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: 7 services in the file
• ✓
  pass: Station found: WTMD 89.7 FM

  Matched on bearer fm:8a0.880f.08970
• ✓
  pass: Short name: WTMD
• ✓
  pass: Medium name: WTMD 89.7 FM
• i
  info: No long name

  Optional.
• ✓
  pass: Short description present

  Baltimore's Home for Total Music Discovery
• i
  info: No long description

  Optional (up to 1200 characters).
• ✓
  pass: Keywords present

  WTMD, Baltimore, MD, music, discovery, new, alternative, indie, NPR, local
• ✓
  pass: 5 links

  Homepage https://wtmd.org
  Facebook https://www.facebook.com/wtmdradio
  YouTube https://www.youtube.com/user/WTMD897
  Instagram https://www.instagram.com/wtmdradio/
  TikTok https://www.tiktok.com/@wtmdradio
• ✓
  pass: The <radiodns> element matches the registration

  fqdn wtmdradio.org, service identifier wtmd

5. Logos

• ✓
  pass: All five standard logo sizes are listed
• ✓
  pass: Logos can be cached (365 days)
• ✓
  pass: 5 logos downloaded and checked

Preview	Declared	Actual	Size	Result
	32x32	32x32	5,252 B	OK https://wtmdradio.org/radiodns/WTMD_32x32_v1.png
	112x32	112x32	7,190 B	OK https://wtmdradio.org/radiodns/WTMD_112x32_v1.png
	128x128	128x128	8,606 B	OK https://wtmdradio.org/radiodns/WTMD_128x128_v1.png
	320x240	320x240	14,444 B	OK https://wtmdradio.org/radiodns/WTMD_320x240_v1.png
	600x600	600x600	30,893 B	OK https://wtmdradio.org/radiodns/WTMD_600x600_v1.png

6. Transmitters and streams

• i
  info: Other bearer: hd:292.10785

  Not checked by this tool.
• ✓
  pass: FM bearer fm:8a0.880f.08970

  cost 31
• !
  warn: Stream OK: https://wtmd-ice.streamguys1.com/wtmd

  audio/aacp, 63 kbps, offset 25000 ms
  The file says audio/aac but the stream answers audio/aacp.
  The file says 64 kbps but the stream reports 63 kbps.
• ✓
  pass: Stream OK: https://wtmd-ice.streamguys1.com/wtmd.mp3

  audio/mpeg, 128 kbps, offset 25000 ms