What's the Hold-up With AM IBOC? - Radio World

What's the Hold-up With AM IBOC?

This is one in a series in which Ibiquity Digital Corp. answers questions about how to implement in-band, on-channel digital audio broadcasting. Vice President of Broadcast Engineering Glynn Walden answers here. Past answers are posted at www.rwonline.com under the tab "IBOC DAB."
Author:
Publish date:

This is one in a series in which Ibiquity Digital Corp. answers questions about how to implement in-band, on-channel digital audio broadcasting. Vice President of Broadcast Engineering Glynn Walden answers here. Past answers are posted at www.rwonline.com under the tab "IBOC DAB."

Q: Why has the standards-setting body, the National Radio Systems Committee, endorsed AM IBOC for daytime only, and when will a decision be made about nighttime AM IBOC?

A: Ibiquity believes its IBOC system will greatly improve an AM station's offering for both daytime and nighttime. The report issued in April by the NRSC concluded additional information was required for AM IBOC performance at night, before conclusions could be reached about nighttime service.

Impressed with AM IBOC daytime performance, the NRSC encouraged the FCC to move forward with AM IBOC for daytime service, while nighttime tests are planned and conducted. The NRSC elected to bring the benefits of AM IBOC to listeners now, while further tests are completed.

Throughout the summer, Ibiquity will conduct exhaustive studies and tests on the AM band. We anticipate AM IBOC nighttime performance information will be shared with the industry by early fall. Ibiquity's goal is to secure industry endorsement of nighttime AM IBOC before the end of this year.

In order to allow for the introduction of IBOC broadcasts this fall, we (and many others in the radio broadcast and consumer electronics industries) have asked the FCC to issue a decision endorsing Ibiquity's AM and FM IBOC system by September. Ibiquity is also requesting the commission to allow stations to commence digital broadcasts this fall, while the FCC works with the various industries to develop final IBOC rules.

Although initial AM operations would be limited to daytime service, we expect the FCC to authorize nighttime AM service before IBOC receivers are commercially available.

Ibiquity remains focused on ensuring AM IBOC is authorized for nighttime service. As we work to this end, we believe all broadcasters and listeners will best be served by a speedy introduction of IBOC digital broadcast services.

Send your IBOC questions for this column to radioworld@imaspub.com. Contact Glynn Walden via e-mail to info@Ibiquity.com or fax to (410) 872-1531.

Radio World welcomes other points of view.

Related

IBOC Q&A: Digital Delay

This is one in a series in which Ibiquity Digital Corp. answers questions about how to implement in-band, on-channel digital audio broadcasting. Broadcast Technology Manager Jeff Detweiler answers here.

AM IBOC Consequences Weighed

In the Sept. 1 issue, Radio World published a selection of comments filed with the FCC about the NRSC report on Ibiquity Digital Corp.'s AM in-band, on-channel digital audio broadcasting system. Here is another sampling...

IBOC Q&A: Digital STLs

This is the second in a series of articles in which representatives of Ibiquity Digital Corp. answer common questions about the implementation of in-band, on-channel digital audio broadcasting. Broadcast Technology Manager Jeff Detweiler answers today’s query.

Radio Groups Inch Up to IBOC

Based on interviews with group owners, engineers and Ibiquity Digital Corp. during the convention in September, it's clear the major radio group investors with stations in large markets plan to transition some stations in key rollout markets this year.

FM Coverage Area

This is one in a series in which Ibiquity Digital Corp. answers questions about how to implement in-band, on-channel digital audio broadcasting. Broadcast Technology Manager Jeff Detweiler answers here.

Licensing Fees To Be Levied

This is one in a series in which Ibiquity Digital Corp. answers questions about how to implement in-band, on-channel digital audio broadcasting. Broadcast Business Development Director Scott Stull answers here.

AM IBOC, Dual Antennas De-Mystified

Radio World asked several of our contributors to attend various sessions at the NAB2003 convention. Here, Michael LeClair summarizes presentations at "IBOC DAB - Ready For Prime Time" of the Broadcast Engineering Conference.

IBOC Q&A: Sample Rates

Among the most important questions radio managers and engineers soon may face is how to implement IBOC DAB technology. Radio World has asked Ibiquity Digital Radio to answer common IBOC questions in this space.