Acceptable registrations in the queue through March 16 at 11:00a ET have now been activated. Enjoy! -M.W.

Terms of Use have been amended effective October 6, 2019. Make sure you are aware of the new rules! Please visit this thread for details: https://www.mibuzzboard.com/phpBB3/view ... 16&t=48619

How High Would A 250 Watt Translator Have Be To Equal A 3000 Watt Class A?

The technical side of broadcasting. Think IBOC is a sham? Talk about it here! How about HDTV? Post DX reports here as well.
CK-722
Posts: 1284
Joined: Sun Dec 16, 2018 3:53 pm

How High Would A 250 Watt Translator Have Be To Equal A 3000 Watt Class A?

Post by CK-722 » Fri Mar 06, 2020 10:53 am

From the FCC Propagation Curve Application.

A 250 watt translator would have to be at 348 meters or 1142 feet HAAT to equal a 3 kW Class A in distance to the 60 dBu contour.

Consider how some of the Detroit Area translators that are nearly that high interfere with adjacent market Class As and limit their de facto services areas, and even Class Bs. Consider that a 3 kW cochannel Class A would have to be 65 miles away under old 3 kW Class A rules and Section 73.213 rules for grandfathered stations. It would have to be 101 miles away from a Class B.

All or nearly all existing AM translators could be fit into a small expanded FM Band, if the FCC would ever do it.


Is THAT where they got the idea for the 486-SX?

Same (x, y, z), different (t)

Your bullet missed my trial balloon.

RTN Price. Not guaranteed. As of 12:30, 157.71 Down 0.22.

Artificial Intelligence is a Child that needs a Parent to guide it through.

Schyster
Posts: 31
Joined: Mon Jul 20, 2009 10:35 pm

Re: How High Would A 250 Watt Translator Have Be To Equal A 3000 Watt Class A?

Post by Schyster » Fri Mar 06, 2020 12:18 pm

CK-722 wrote:
Fri Mar 06, 2020 10:53 am

All or nearly all existing AM translators could be fit into a small expanded FM Band, if the FCC would ever do it.
True, however an expanded band would require the purchase of a new radio, and that is something people are doing much less of. I think an expanded band at this point would relegate the stations located there to a lonely existence.



User avatar
TC Talks
Posts: 10108
Joined: Wed Oct 26, 2005 2:41 am

Re: How High Would A 250 Watt Translator Have Be To Equal A 3000 Watt Class A?

Post by TC Talks » Fri Mar 06, 2020 12:33 pm

We used to have 10-watt community translators at 13,500 feet in Colorado to repeat the Denver tv stations and radio. You could hear them 35 miles away down the valley.


“The more you can increase fear of drugs, crime, welfare mothers, immigrants and aliens, the more you control all of the people.”
― Noam Chomsky

Posting Content © 2024 TC Talks Holdings LP.

Post Reply Previous topicNext topic