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Another Seattle Move-In

S

Sweet Maui Onion

Hello, long time listener, first time caller.

No one seems to have mentioned what appears to be on it's second step of moving into Seattle of K60GV, on TV Channel 6, a/k/a 87.7 FM by a company known for it's 87.7 operations in other markets. Here is the FCC link:
http://www.fcc.gov/fcc-bin/tvq?list=0&facid=128217


It's possible that it only has a life of under a decade, with the rumors of requiring NTSC LPTV's to go digital.

I honestly don't see how Canada would approve this. It's true that a LPTV can interfere with a foreign station within the US border, but this LPTV appears to be putting a city-grade signal over Saturna Island, where a 100,000 watt NTSC channel 6 is currently located.

However, in case my logic is flawed with the whole Canadian government thing, it looks like only one more step is needed to be a Seattle station on 87.7 FM.
 
Sweet Maui Onion said:
No one seems to have mentioned what appears to be on it's second step of moving into Seattle of K60GV, on TV Channel 6, a/k/a 87.7 FM by a company known for it's 87.7 operations in other markets. Here is the FCC link:
http://www.fcc.gov/fcc-bin/tvq?list=0&facid=128217


It's possible that it only has a life of under a decade, with the rumors of requiring NTSC LPTV's to go digital.

I honestly don't see how Canada would approve this. It's true that a LPTV can interfere with a foreign station within the US border, but this LPTV appears to be putting a city-grade signal over Saturna Island, where a 100,000 watt NTSC channel 6 is currently located.

However, in case my logic is flawed with the whole Canadian government thing, it looks like only one more step is needed to be a Seattle station on 87.7 FM.
Click to expand...

It certainly doesn't look compliant to me.

The Canadian database says channel 6 in Victoria is only 4.6km from the border; it generates 112.4dBu F(50,50) protected service at the border. By my reading, a LPTV station with no carrier offset (as is proposed by K60GV) must be at least 45dB below the existing full-power station at any point within the full-power station's protected contour. Presumably worst-case would be at the point on the border midway between the two stations. K60GV could deliver up to 67.4dBu at the border. (that's a pretty hefty signal, almost Grade A)

But K60GV also proposes a pretty hefty signal. Full 3kw ERP -- and their HAAT calculates out to 772.7m on the heading towards the Victoria station. I'm calculating the 67.4dBu contour as 49km. I know that figure extends well across the border, because it actually well exceeds the distance between the two transmitters. (they're only 26.4km apart)

I guess I can see three ways in which they may think this might work:

- While the K60GV signal crosses the border into Canada, there is little or no population within the Canadian interference area. (long shot)
- They will accept a condition prohibiting operation of the station until Canadian analog transmissions are shut down in summer 2011.
- They forgot that analog shutdown in Canada hasn't happened yet....
 
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