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QUESTION FOR ENGINEERS - WILL NEW RULING ABOUT HD DESTROY some RADIO stations?

J

joshzz

As you know, radio station owners have been given the go-ahead to increase their HD stations 4 -10 times the power they were running at previously. My question is, "With all the interference that HD causes with adjacent channels is this going to be the end of stations with lower power?"

For instance if one station is a Class A FM and the next nearest station is a Class C, 50,000 watts - Will the flame thrower, render the little class A, 3,000 watt station virtually useless?

Right now the economy is holding many back from switching over to HD but could the stabilizing of our country's economic situation (at that point everyone will move to HD) actually result in the demise of many stations across the country?
 
josh said:
As you know, radio station owners have been given the go-ahead to increase their HD stations 4 -10 times the power they were running at previously. My question is, "With all the interference that HD causes with adjacent channels is this going to be the end of stations with lower power?"

For instance if one station is a Class A FM and the next nearest station is a Class C, 50,000 watts - Will the flame thrower, render the little class A, 3,000 watt station virtually useless?
Click to expand...

Not necessarily, unless it's a first adjacent with some overlapping coverage. I question how many stations will leap to this power increase as it's going to be extremely costly to accomplish.

josh said:
Right now the economy is holding many back from switching over to HD but could the stabilizing of our country's economic situation (at that point everyone will move to HD) actually result in the demise of many stations across the country?
Click to expand...

I doubt there is any desire on the part of any station to convert to HD that hasn't already done so. There may be a few that have postponed the capex, but I would doubt many. If in some scenario all stations (talking FM here) were to suddenly convert to HD, I think we'd have quite the mess, especially with the higher power levels. I don't see it occurring. I have a friend that has an HD with an additional 2 dB of headroom. He may run it all out, but I can assure you not one dime will be spent to change the existing system.
 
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