Re: Channels after the 09 change
- From: Alan F <afiggatt1@xxxxxxxxxxxxxx>
- Date: Wed, 28 May 2008 21:19:16 GMT
G-squared wrote:
On May 28, 12:49 am, phil-news-nos...@xxxxxxxx wrote:
>
> Even finer details can be found at this URL:
> http://www.fcc.gov/fcc-bin/tvq?call=XXXX
> where you replace "XXXX" with the callsign of the station in
question.
So I looked up KABC Los Angeles - here.
http://www.fcc.gov/fcc-bin/tvq?call=kabc
Am I reading this right? 13 kW ? That should get them across the
street.
GG
13.2 kW ERP is a respectable power for digital VHF 7, especially given
the height of the antennas at Mt. Wilson. KABC's analog power is 141 kW
and there is roughly a 1/16 ratio between equivalent analog ERP and
digital ERP (Effective Radiated Power) for upper VHF channels. If you
look at the nominal service contour maps for KABC 7 analog
(http://www.fcc.gov/fcc-bin/FMTV-service-area?x=TV70418.html) and the
future KABC-DT 7 digital
(http://www.fcc.gov/fcc-bin/FMTV-service-area?x=DT1239970.html), you
will see that the coverage area is actually a bit larger for KABC-DT
next year.
If you want to look at a station with a possible signal strength issue
after Feb 17, 2009, check WABC-DT 7 in New York City or WBAL-DT 11 in
Baltimore. WABC 7 is currently 123 kW analog, but has been alloted a
digital signal of 3.2 kW on VHF 7 next year. Should be 8 to 10 kW to
replicate the analog coverage. WBAL NBC 11 in Baltimore is running at
the maximum allowed 316 kW in analog, but opted for reduced coverage
with a 5 kW digital signal on VHF 11 next year so they can use their
current analog antenna. But stations can request increased power
assignments this August, WBAL-DT may be planning to ask for higher power
then.
For anyone who wants to see the current analog ERPs and current
assigned post-trans channels & ERPs for all full power stations, get
Falcon_77's Excel file at
http://www.avsforum.com/avs-vb/showthread.php?p=12890633#post12890633.
Alan F
.
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