300 Mw ?
The biggest AM station was 1 Million Watts (1 megawatt).

UHF TV stations are licensed up to about 3 Megawatts, but this is "beamed" by
concentrating the signal along the horizon. The actual transmitter is 100 KW or
so.

Shortwave broadcast stations have transmitters up to about 500 kW but antenna
gains of 20 dB or more can make it seem like several million watts if you're in
the target area.

But let's assume that since Mindanao has mostly AM receivers that the the 300
megawatt transmitter is non directional (no antenna gain), then it would need
to draw about 400 to 500 Megawatts of power from the power grid.
Enough to power a major city or two.
Will they be erecting two or three new nuclear power plants nearby to power it?

At 5 Billion dollars each, this seems very wasteful of scarce resources. So
it's a 10-15 Billion dollar project.

SOMEBODY must a have a really important message

Radioman390 wrote:
The biggest AM station was 1 Million Watts (1 megawatt).

There are a handful of 2 megawatt AMs - at least one in Saudi Arabia.
(where I'd imagine the ground conductivity is horrendous so it still
doesn't "get out" all that wellgrin)

UHF TV stations are licensed up to about 3 Megawatts, but this is "beamed" by
concentrating the signal along the horizon. The actual transmitter is 100 KW or
so.

5 megawatts is the maximum legal power for analog TV in the U.S.. I'm
aware of transmitters available up to 220KW output.

--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com

Doug Smith W9WI wrote:
5 megawatts is the maximum legal power for analog TV in the U.S.

That's ERP, though, no?

--
"One month from today, the American dream is on the ballot." -- John Kerry, 10/2

So is the American Nightmare, Jack-F...
Please go back to Communist Viet Nam where you're appreciated.

Here in the Central Valley of Calif- Fresno- All of our TV has been UHF
since the early 60s. The major network stations here run 5 megawatt ERP
from mtn. tops 25mi away. I'm not sure about how height above average
terrian calculates in the equation to determine ERP.
jk
clifto wrote:

Doug Smith W9WI wrote:


5 megawatts is the maximum legal power for analog TV in the U.S.



That's ERP, though, no?

John Kirchman wrote:
clifto wrote:
Doug Smith W9WI wrote:
5 megawatts is the maximum legal power for analog TV in the U.S.

That's ERP, though, no?

Here in the Central Valley of Calif- Fresno- All of our TV has been UHF
since the early 60s. The major network stations here run 5 megawatt ERP
from mtn. tops 25mi away. I'm not sure about how height above average
terrian calculates in the equation to determine ERP.

Yipe. To HAAT and ERP, add DFMA[1] as a very important measurement.


[1] distance from my a**
--
It just goes to show ya;
never have a heart valve replaced by Dr. Vinnie Boom Box.
See ya, Rodney.