Weekly Tech Reminders: Downlink Registration, Daylight Savings & More

An excerpt from this week’s Monday Morning Coffee and Technical Notes
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The following is excerpted from the Alabama Broadcasters Association's weekly e-newsletter, Monday Morning Coffee and Technical Notes. Thanks to Larry Wilkins, who puts together the content and has shared it with Radio magazine readers. To subscribe to the newsletter, send an email to lwilkins@al-ba.com, and he will add you to the database.


As a reminder the deadline to register your C-band downlink is Oct. 17. This is very important to insure that the FCC is aware of how much this frequency spectrum is used by all radio, television and cable operations.

[UPDATED — the FCC has extended the C-band filing deadline to Oct. 31.]

The broadband companies are wanting to "share" this spectrum with broadcasters. Engineers are aware of the potential inference that these 5 G systems can cause to the weak signals from satellites 22,000 miles above the earth. 


We are finally getting some fall like temperatures, but be reminded that Fall brings an end to Daylight Savings Time in most states. This year it occurs on Sunday Nov. 4 at 2 a.m. This means at 2 a.m. clocks are turned backward one hour to Sunday, Nov. 4, 1 a.m. local standard time instead.

Sunrise and sunset will be about one hour earlier on Nov 4 than the day before. There will be more light in the morning.


More stations continue to hop on the ATSC 3.0 band wagon. The FCC has approved five more stations to join in the "Phoenix Model Market project". That makes a total of nine stations involved in the model market "test bed" in Phoenix.


If you haven't filed Form 2 following the National EAS Test, the FCC is still open for filing this form. Also, don't forget the deadline for Form 3, which is Nov. 19. 

While on the subject of EAS we would like request that all Alabama stations send an email to the Alabama SECC indicating what source you received the NPT from, (IPAWS server or one of your two required monitor sources). This information is available on your EAS log and will be most helpful to the SECC.


In 1897 Marconi was asked: "How far do you think a message can be sent?"

Twenty miles was his answer. He added "the distance depends simply upon the amount of exciting energy and the dimensions of the conductors from which the waves proceed". 

No one in that day even dreamed that radio waves would be able to send information thousands of miles or even to the deepest part of our universe.


HEVC or High Efficiency Video Coding is replacing Advanced Video Coding (AVC), also known as H.264, which is one of the compression schemes used by Blu-ray. 

HEVC will offer the same level of picture quality as AVC, but with better compression, so there's less data to deal with. This will be needed when television stations start transmitting 4K video to your homes. Compression algorithms continue to improve which make it possible to send more data with fewer bits.

Learn how its works in this great article on the CNET website.