WIBC-Off the Air

[Hoosierky]

93.1 was off the air Sunday morning. So I started listening for who would boom in. It was WTTS. Seems kinda odd that 92.3 would bleed over to 93.1 in Plainfield. I was in a '02 Toyota with factory-standard radio. Never had a problem with the reciever straying off freq.

Thanks.

 

[Ann Tenna]

I heard the same thing while WIBC was doing their oddly timed maintenance. I was in the Eagle Creek area, by my math, that's about 30 miles from the 92.3 transmitter. Now I'm not an FCC engineer, but I'm sure there are rules about splatter and crosstalk between stations nearly 1 mhz and 30 miles apart, and I don't think 92.3 is meeting that limitation.

 

[Hoosierky]

I heard the same thing while WIBC was doing their oddly timed maintenance. I was in the Eagle Creek area, by my math, that's about 30 miles from the 92.3 transmitter. Now I'm not an FCC engineer, but I'm sure there are rules about splatter and crosstalk between stations nearly 1 mhz and 30 miles apart, and I don't think 92.3 is meeting that limitation.

Thanks Ann. I thought it was just me! ;D

 

[greg.hahn]

I heard the same thing while WIBC was doing their oddly timed maintenance. I was in the Eagle Creek area, by my math, that's about 30 miles from the 92.3 transmitter. Now I'm not an FCC engineer, but I'm sure there are rules about splatter and crosstalk between stations nearly 1 mhz and 30 miles apart, and I don't think 92.3 is meeting that limitation.

That is extremely difficult to do, even for a transmitter that's really badly messed up.

WTTS is 37KW ERP. Their emissions on 93.1 have to be 80 Db below that, which would be .00037 watts.

Even a really horrible case of spurious emissions, say minus 20 Db, would only be 370 watts. They've got a pretty tall tower, but 30 miles is hard to do at that power level.

And with a spur that bad they would know their transmitter was really messed up. Not to mention the fact that you'd be getting WTTS on 93.1 all over Monroe county, rather than WIBC. (You would also be getting WTTS just as well on 91.5, and WFHB would have a cow if that happened.)

The question is, how well was in coming in? If it was coming in great in Eagle Creek, that wasn't coming from the licensed WTTS transmitter site.

And that raises the question of the oddly timed maintenance. Were the WIBC engineers out looking for the source of the interference?

 

[BobOnTheJob]

I know what happened and without divulging too much, WTTS had a spur problem, it was about -35db and they took swift action to correct it once they were notified.

 

[greg.hahn]

Minus 35 would be somewhere between 10 and 15 watts. That's quite a trip!

Thanks Bob.

 

[BobOnTheJob]

Minus 35 would be somewhere between 10 and 15 watts. That's quite a trip!

Thanks Bob.

10 watts at nearly 1100' HAAT would carry quite a ways based on how far the 10 watt/600'+ HAAT K-Love translator on 95.1 in Floyd's Knobs goes. That one fades out somewhere in Bullitt County.

 

[greg.hahn]

Minus 35 would be somewhere between 10 and 15 watts. That's quite a trip!

Thanks Bob.

10 watts at nearly 1100' HAAT would carry quite a ways based on how far the 10 watt/600'+ HAAT K-Love translator on 95.1 in Floyd's Knobs goes. That one fades out somewhere in Bullitt County.

Obviously so. And apparently WIBC shut down on Sunday morning to track it down, or at least figure out what it was.

 

[Southport_road]

WIBC shutdown that Sunday morning for scheduled tower maintenance. Discovery of the 92.3 interference, which was almost immediately remedied by 92.3's engineer, was a side benefit of WIBC being off the air.