RE: WGBH dismissal, and an array sizing question.

["Paul Hopfgarten" <paul@03038.com>]

They do have W242AA in the Back Bay...

Paul Hopfgarten
East Derry NH 03041

> -----Original Message-----
> From: owner-boston-radio-interest@bostonradio.org
> [mailto:owner-boston-radio-interest@bostonradio.org]On Behalf Of Peter
> Murray
> Sent: Tuesday, September 03, 2002 5:18 PM
> To: boston-radio-interest@bostonradio.org
> Subject: WGBH dismissal, and an array sizing question.
>
>
> Looks like all that discussion a bit ago regarding WGBH changing their
> HAAT/power/location is moot:
>
> MA  BPED-20000303ACI	WGBH  70510	WGBH EDUCATIONAL FOUNDATION
> 		    P	89.7 MHZ	BOSTON, MA
>
> Minor change in licensed facilities.
> 21 kW ERP, 323 meters HAAT, 42 18 37 NL, 71 14 14 WL.
>
> Application dismissed 8/28/2002.
>
> Good thing, too - from what I could calculate, indeed it would
> have been a
> great deal less signal than what they have now.
>
> If the big problem is terrain shadowing Back Bay, why don't they put in a
> booster? Is the concern there that too many receivers don't have the
> capture ratio to deal with the two same-frequency signals, especially
> where they're close in strength?
>
> Oh - and a re-query to the (more advanced than I) engineers on the list.
> What is the downside of higher-gain arrays in FM broadcasting? Obviously,
> the savings on the electric bill is an upside, but what do you give up?
> I've visited sites with 10-bay Shively arrays, and yet I don't typically
> see that - usually 3 to 6 bay arrays are what I'll see.  Does that more
> sharply focused (towards the horizon) signal produced more marked
> shadowing when terrain gets in the way?
>
> Thanks much for any info.
>
> Peter Murray (N3IXY)
> Pittsburgh, PA
>