FEDERAL COMMUNICATIONS COMMISSION
445 l2" STREET, SW
WASHINGTON, DC 20554
MEDIA BUREAU
AUDIO DIVISION
APPLICATION STATUS: (202)418-2730
HOME PAGE: www.fcc.gov/media/audio/

PROCESSING ENGINEER: Susan N. Crawford
TELEPHONE: (202) 418-2754
GROUP FACSIMILE: (202)418-1411
INTERNET ADDRESS: Susan.Crawfordfcc.gov

November 2, 2016

Davina S. Sashkin, Esq.
Fletcher, Heald & Hildreth, PLC
1300 North 17th Street

1 1th Floor
Arlington, VA 22209

Re: WMYZ(FM), Clermont, Florida
Central Florida Educational
Foundation, Inc.
Facility ID No. 27291
File No. 20161021ABW
Request for Experimental Authority

Dear Counsel:
The staff has under consideration the October 21, 2016, request for experimental
authority submitted on behalf of Central Florida Educational Foundation, Inc. (CFEF), licensee
of noncommercial educational FM station WMYZ(FM), Clermont, Florida,' to permit
WMYZ(FM) to conduct testing of hybrid digital FM in-band on-channel (IBOC) operation with
asymmetric power levels in the digital sidebands. The experimental authority is requested
pursuant to Section 5.203 of the Commission's Rules.2
The request states that CFEF is seeking experimental authority to operate WMYZ(FM)
with lower sideband (LSB) digital effective radiated power (ERP) of-lO dBc3 and upper
sideband (USB) digital ERP of-li dBc.
Our review indicates that the proposed WMYZ(FM) digital operation does not comply
with the contour nonoverlap and other technical requirements of the Media Bureau's Order

'File Number BLED-20100408ABN.
2 47 CFR § 5.203 (Section 5.203).
Decibels relative to analog carrier.

	

adopted January 27, 2010, in MM Docket No. 99-325g. Specifically, at -11 dBc USB digital
power, the predicted WMYZ(FM) interfering 50.2 dBu F(50,l0) contour impermissibly overlaps
the protected 60 dBu F(50,50) contour of licensed, first-adjacent channel station WKTO(FM),
Edgewater, Florida.5 However, our study shows that with an USB digital power of-12 dBc, the
WMYZ(FM) asymmetric digital sideband power operation would provide the required protection
of the licensed WKTO(FM) facilities, as well as the authorized facilities of all other potentially
affected first-adjacent channel FM stations, and would meet the contour nonoverlap and other
technical requirements of the Order. Additionally, the request for experimental authority meets
the requirements for experimental operations set forth in Section 5.203. Accordingly, the
request, modified to specify -12 dBc USB digital power, is HEREBY GRANTED. WMYZ(FM)
may operate with increased digital ERP as follows:
Analog ERP:
Digital LSB ERP:7
Digital USB ERP:

1.2 kilowatts (kW), H&V6
0.060 kW
0.03 8 kW.

This experimental authority expires on November 2, 2017. This authority is specifically
conditioned on the lack of objectionable interference. A report detailing the methodology
employed and the results obtained must be submitted within 90 days following the conclusion of
the experimental operation. Any request for extension of this experimental authority should be
filed at least 30 days prior to the expiration date of the authority. Additionally, an extension
request must include an interim version of the aforementioned report detailing the progress of the
experimental operation as of the filing date of the request.
Sincerely,

Susan N. Cfawford
Audio Division
Media Bureau
cc: Central Florida Educational Foundation, Inc.

Audio Broadcasting Systems And Their Impact on the Terrestrial Radio Broadcast Service, MM Docket
No. 99-325, Order, 25 FCC Rcd 1182 (MB 2010) (Order).
File No. BLED-201 1O6O3AAS.
6 All ERP values rounded in accordance with 47 CFR § 73 .212(a).
Digital ERP values shown are for MP 1 service mode. The licensee must adjust the station's asymmetric digital
sideband ERP values in accordance with NRSC guideline "NRSC-G202, FM IBOC Total Digital Sideband Power
for Various Configurations" (September 2010) if operating using a service mode other than MP1.