Crews are working this week at the KFMB-TV transmit site on Mt. Soledad to swap out the 8-bay multi-station Dielectric FM transmit antenna for a new 12-bay Dielectric. After the current group of sharing stations moves to the lower power Dielectric aux antenna Monday, June7, Wireless Infrastructure Services will disassemble the ERI antenna known as “Quadzilla.” They’ll replace it with the 12-bay, 1/2-wavelength spaced Dielectric antenna designed to handle the greater power that will be needed to handle the addition of three more full-power stations.
The FCC in late February and early March granted Minor Modification applications for all of the iHeartMedia FM stations atop Mt. Soledad to consolidate at the historic KFMB-TV site, moving from KGTV’s antenna across the street. iHeart’s KMYI 94.1 and KIOZ 105.3 will join current master FM antenna partners KPBS-FM 89.5, KBZT (FM) 94.9, KXSN (FM) 98.1, and KFBG (FM) 100.7. EMF’s KLVJ (FM) 102.1 Encinitas has taken delivery of a new Nautel GV15 transmitter and will move its signal from the UCSD tower site to the new master FM antenna, as well.
iHeartMedia’s KSSX (FM) 95.7 Carlsbad will also move from KGTV to KFMB-TV, but their allocation requires a separate, directional antenna to be mounted on a tenant tower at KFMB-TV. The signal has some reduction in signal toward Mexico to the southeast.
he FCC granted a Minor Modification application for iHeart Media to move K277DH, the KLSD (AM) translator on 103.3 MHz, from a KGTV-owned tower to the KFMB-TV tower. The CP specifies a vertically polarized Kathrein yagi with an east-west orientation at 250 watts ERP.
Since the KFMB Stations were sold to TEGNA, InSite had been managing the site for income. American Tower Corp. recently acquired all of the InSite properties and management contracts and has taken over management of the KFMB-TV property.
The National Periodic Test, not conducted last year during the heat of the pandemic, is scheduled for Wednesday, August 11, 2021. The transmission will be through the network of PEP (Primary Entry Point) stations—not through the IPAWS network.
San Diego County Stations can validate the NPT using their normally assigned LP sources, like LP-1 KOGO 600 kHz and LP-2 KLSD 1360 kHz. Additionally, KPBS 89.5 MHz is considered a PEP station by virtue of its affiliation with NPR. SiriusXM Radio has also been authorized as a PEP source. But you don’t need to reconfigure your system to confirm the National Periodic Test if it’s working for normal RWTs and RMTs.
When Apple, Google, Microsoft and Mozilla team up, you might think, “Nothing good is going to come of this.” You’d be so wrong. An Open Source project is typically the last thing these tech behemoths would ever want to be involved in, let alone with their fiercest rivals. WebRTC is a fascinating example of how good things can be born of necessity and how they can foster cooperation on multiple levels. We’ll discuss the basics of WebRTC and the multitude of applications that are already using it to change the way the world communicates. This is especially important in light of the rapid evaporation of our “traditional” telco infrastructure. We’ll also cover broadcast-specific applications and the future of live content creation.
SBE members and guests are welcome to join us online Tuesday, June 8, 2021 at 6:30 PM PDT/AZT.
Register in advance for this Zoom meeting here.
After registering, you will receive a confirmation email containing information about joining the meeting.
About the Presenter
Chris Crump has served as the Sr. Director of Sales & Marketing for Comrex since 2004. In 1987, he began his professional radio career at ABC/Cap Cities Detroit before taking the Features Editor position at MediaBase Research/Monday Morning Replay. On-air, remote broadcast engineer, Creative Services Director roles followed for Capitol Broadcasting (subsequently Paxson Communications) in Orlando and the Ron & Ron Radio Network in Tampa/St. Petersburg.
In 1996, Crump moved to the manufacturing side of the broadcast business performing sales & marketing roles for Spectral, Inc., Euphonix, Symetrix and Klotz Digital America. Crump resides in Buford, Georgia (outside of Atlanta) with his wife Seval, 16 year-old daughter Zara and their Affenpinscher Olive. He is a CBNE certified member of SBE Chapter 5 in Atlanta as well an Assistant Scoutmaster in Dacula, GA.
When FEMA issues an IPAWS test or alert, it includes a “signature certificate.” This operates similar to a password for accessing different sites or files on a computer. In the case of a message from FEMA, a message without a correct signature the EAS device should ignore the message.
On April 26, 2021, the Required Weekly Test (RWT) from IPAWS was transmitted with an incorrect signature. The test messages had a mismatch between the digest inside the message, and the digest computed by receivers. This is a part of the validation for an alert, and checking it is required by FCC Rule 11.56(c): “EAS Participants shall configure their systems to reject all CAP-formatted EAS messages that include an invalid digital signature.”
Continue reading Stations Should Note Reason for IPAWS April 26 RWT Failure
Chapter 47 Los Angeles presents an online talk by Shaun Dolan of the Telos Alliance. You’re welcome to join us Tuesday, May 11, 2021, at 11:30 AM.
Register here for the meeting.