Your browser does not fully support modern features. Please upgrade for a smoother experience.
Submitted Successfully!
Thank you for your contribution! You can also upload a video entry or images related to this topic. For video creation, please contact our Academic Video Service.
Version Summary Created by Modification Content Size Created at Operation
1 handwiki Vivi Li -- 2944 2022-10-10 01:31:29

Video Upload Options

We provide professional Academic Video Service to translate complex research into visually appealing presentations. Would you like to try it?
No, upload directly Yes
Cite
If you have any further questions, please contact Encyclopedia Editorial Office.
HandWiki. In-band On-channel. Encyclopedia. Available online: https://encyclopedia.pub/entry/30355 (accessed on 22 October 2026).
HandWiki. In-band On-channel. Encyclopedia. Available at: https://encyclopedia.pub/entry/30355. Accessed October 22, 2026.
HandWiki. "In-band On-channel" Encyclopedia, https://encyclopedia.pub/entry/30355 (accessed October 22, 2026).
HandWiki. (2022, October 20). In-band On-channel. In Encyclopedia. https://encyclopedia.pub/entry/30355
HandWiki. "In-band On-channel." Encyclopedia. Web. 20 October, 2022.

In-band On-channel

Edit
The content is sourced from: https://handwiki.org/wiki/Engineering:In-band_on-channel

In-band on-channel (IBOC) is a hybrid method of transmitting digital radio and analog radio broadcast signals simultaneously on the same frequency. By utilizing additional digital subcarriers or sidebands, digital information is "multiplexed" on an AM or FM analog signal, thus avoiding re-allocation of the broadcast bands. However, by putting RF energy outside of the normally-defined channel, interference to adjacent channel stations is increased when using digital sidebands. The addition of the digital sidebands works better in the United States, where the FM broadcast band channels have a spacing of 200 kHz, as opposed to the 100 kHz that is normal elsewhere. The 200 kHz spacing means that in practice, stations having concurrent or adjacent coverage areas will not be spaced at less than 400 kHz. Outside of the US, spacing can be 300 kHz, which causes problems with the IBOC digital sidebands. IBOC does allow for multiple program channels, though this can entail taking some existing subcarriers off the air to make additional bandwidth available in the modulation baseband. On FM, this could eventually mean removing stereo. On AM, IBOC is incompatible with analog stereo, and any additional channels are limited to highly compressed voice, such as traffic and weather. Eventually, stations can go from hybrid mode (both analog and digital) to all-digital, by eliminating the baseband monophonic audio.

all-digital iboc adjacent channel

References

  1. "FCC digital radio broadcasting". United States Federal Communications Commission, audio division. http://www.fcc.gov/mb/audio/digital.html. 
  2. "NRSC 5B of April 2010". National Radio Systems Committee. http://www.nrscstandards.org/SG.asp. 
  3. "FCC digital radio broadcasting FM stations list". United States Federal Communications Commission, audio division. http://licensing.fcc.gov/cgi-bin/ws.exe/prod/cdbs/pubacc/prod/sta_list.pl?Service=FM&digital_status=H. 
  4. http://www.owdjim.gen.nz/chris/radio/DRM/
  5. "FCC digital radio broadcasting". United States Federal Communications Commission, audio division. http://www.fcc.gov/mb/audio/digital.html. 
  6. Holm, Steve (2007). "Lydkvalitetet i DAB digitalradio". Digitale Utgivelser ved UiO. Archived from the original on 2008-05-01. https://web.archive.org/web/20080501073857/http://wo.uio.no/as/WebObjects/theses.woa/wa/these?WORKID=52348. Retrieved 2009-01-03.  (Norwegian)
  7. Robinson, David J. M. (2002-07-09). "DAB sound quality". OFCOM: Regulation in digital broadcasting: DAB digital radio bitrates and audio quality; Dynamic range compression and loudness. Archived from the original on 2008-07-08. https://web.archive.org/web/20080708211612/http://www.david.robinson.org/commsbill#1_2_3. Retrieved 2009-01-03. 
  8. Kozamernik, Franc (June 2003). "EBU subjective listening tests on low-bitrate audio codecs" (PDF). EBU * UER. http://www.ebu.ch/CMSimages/en/tec_doc_t3296_tcm6-10497.pdf. Retrieved 2009-01-03. 
  9. "DAB+ - Upgrade to DAB Digital Radio - The World DAB Forum". http://www.worlddab.org/introduction_to_digital_broadcasting/dab_plus_digital_radio. 
  10. FCC (2010-01-29). "Digital power increase for FM stations approved. MM Docket No. 99-235, DA 10-208.". http://www.fcc.gov/fcc-bin/audio/DA-10-208A1.pdf. Retrieved 2010-02-26. 
  11. Ministério das Comunicações (2012-08-08). "Relatórios de testes com medições.". http://www.comunicacoes.gov.br/testes-com-medicoes. Retrieved 2015-06-08. 
  12. Empresa Brasil de Comunicação (Brazilian Public Broadcaster) (2013-10-08). "Testes feitos com rádio digital apresentam alcance inferior ao analógico, diz ministério.". http://www.ebc.com.br/noticias/brasil/2013/10/testes-feitos-com-radio-digital-apresentam-alcance-inferior-ao-analogico-diz. Retrieved 2015-06-08. 
  13. Public Notice CRTC 2006-160 http://www.crtc.gc.ca/eng/archive/2006/pb2006-160.htm
  14. http://www.sunshine.ch/dynasite.cfm?dsmid=98472
  15. "Archived copy". http://www.worlddab.org/country_information_/switzerland. 
More
©Text is available under the terms and conditions of the Creative Commons-Attribution ShareAlike (CC BY-SA) license; additional terms may apply. By using this site, you agree to the Terms and Conditions and Privacy Policy.
Upload a video for this entry
Information
Subjects: Telecommunications
Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register :
HandWiki
View Times: 1.2K
Entry Collection: HandWiki
Revision: 1 time (View History)
Update Date: 20 Oct 2022
Table of Contents
    Notice
    You are not a member of the advisory board for this topic. If you want to update advisory board member profile, please contact office@encyclopedia.pub.
    OK
    Confirm
    Only members of the Encyclopedia advisory board for this topic are allowed to note entries. Would you like to become an advisory board member of the Encyclopedia?
    Yes
    No
    ${ textCharacter }/${ maxCharacter }
    Submit
    Cancel
    There is no comment~
    ${ textCharacter }/${ maxCharacter }
    Submit
    Cancel
    ${ selectedItem.replyTextCharacter }/${ selectedItem.replyMaxCharacter }
    Submit
    Cancel
    Confirm
    Are you sure to Delete?
    Yes No
    Write an Entry
    Feedback