ATTN: CLASS A FM Stations: C4 Comments filing open now!

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ATTN: CLASS A FM Stations: C4 Comments filing open now!

Post by musiconradio.com » Sun Aug 03, 2014 7:08 pm

Hello everyone -

For those interested in the FM Class C4 / 73.215 proposal currently before
the FCC, the time to file comments is now.

http://apps.fcc.gov/ecfs/proceeding/view?name=RM-11727

If enough supportive comments are received, then it is likely that the
Commission will issue a formal Notice of Proposed Rulemaking, which could
lead to the creation of the Class C4 station class.

The absolute deadline for comments is August 18th, but please consider
filing before then.

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Re: ATTN: CLASS A FM Stations: C4 Comments filing open now!

Post by Deep Thought » Mon Aug 04, 2014 9:46 am

And don't forget, this is also the deadline to tell the FCC what a dumb idea it is.
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Re: ATTN: CLASS A FM Stations: C4 Comments filing open now!

Post by Kelly » Mon Aug 04, 2014 9:56 am

Mark, would this apply to stations (not sure what the term is now) above what used to be called 'Line A'? Too close to Canada.
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Re: ATTN: CLASS A FM Stations: C4 Comments filing open now!

Post by Deep Thought » Mon Aug 04, 2014 12:13 pm

It would require some sort of treaty amendment with both Canada and Mexico in the within-320 km-'border area' to add the class unless they are treated as class C-3 internationally. The purported benefits of this, however, don't anywhere nearly outweigh the increased interference.
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Re: ATTN: CLASS A FM Stations: C4 Comments filing open now!

Post by Kelly » Mon Aug 04, 2014 1:39 pm

Thanks Mark. C4 would be fine for the central states and Mid Atlantic, but wouldn't do much good in places like Southern CA., Washington, North Dakota, Upstate NY, etc. I need to take the time to read what is being proposed, because there must be limitations that would almost not make the proposal of a new class worth the trouble.
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Re: ATTN: CLASS A FM Stations: C4 Comments filing open now!

Post by TPT » Mon Aug 04, 2014 6:26 pm

Southern California and upstate NY are both Class B territories. Hence, the proposed C-4 class would not apply in those areas. Also, the C-3 and B-1 classifications, while for identical powers (25 kw. @ 100 meters AHAAT) have different protected contours (60 dbu vs. 57 dbu primary).

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Re: ATTN: CLASS A FM Stations: C4 Comments filing open now!

Post by NECRAT » Tue Aug 05, 2014 8:10 am

TPT wrote: upstate NY are both Class B territories.
Not northern NY state (St. Lawrence county, across the Adirondacks to the VT line.). That's Zone II up there.

See http://en.wikipedia.org/wiki/FM_broadca ... _zones.png
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Re: ATTN: CLASS A FM Stations: C4 Comments filing open now!

Post by musiconradio.com » Wed Aug 06, 2014 12:17 am

This is being overthought. It is not going to impact stations, or create any additional Interference. Why should a class A station suffer to protect some station that is over 200 miles away. I'm sure a few DB of signal to fill some dead spots (and we have plenty in the South) is not going to kill a C or C1 signal. NCE stations don't seem to have a problem?

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Re: ATTN: CLASS A FM Stations: C4 Comments filing open now!

Post by TPT » Wed Aug 06, 2014 2:59 pm

One would assume that the present allocation scheme is kept. That is, protections based on minimum distance separations between existing a proposed facilities. Only issue then is what theoretical contours the distance separations are based on. E.G.--would a Class C-4 protect a fist adjacent against an overlap of the (flat-land, not actual) new 54 50/10 to the existing 50/50 60 dbu?

Detrimental effect would be that some stations would find upgrade or transmitter site re-location more difficult then if their co- and adjacent channel stations remained with the present classification scheme.

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