[Tig] DTV assignments antenna work may be good business

DCFWTX at aol.com DCFWTX at aol.com
Mon Feb 11 22:01:46 GMT 2008

In a message dated 2/11/2008 1:35:04 PM Pacific Standard Time, 
ted at tedlangdell.com writes:

> There are few VHF DTV's because the VHF frequencies are currently in  
> use by analog stations or are vacant as protection for other analog  
> stations in adjacent markets.

It appears from what I've read, that the stations in the best DTV situation, 
based on transmitter power consumption and ease of reception for DTV, are in 
the VHF high band, channels 7-13. UHF transmitters require a lot more power 
than their VHF counterparts. The VHF low band, channels 2-6, are much more prone 
to man made interference, and troposcatter and long range skip. I believe that 
there are a few on low band DTV now (WBBM channel 3 Chicago?). The analog 
gulf coast stations, such as KPRC channel 2 and WESH channel 2, have battled for 
years with skip interference, especially in the warm spring days, when a 
distant station can totally take out a local channel 2, as is the case regularly in 
Houston. Even one time here in the San Fernando Valley of Los Angeles, KPRC 
completely took out KNXT channel 2 to a point that they had to tell their Los 
Angeles viewers what the problem was, one afternoon in the 80's! So it appears 
that low band VHF will not support any DTV, in my opinion.

There is a guy in the Midwest with an interesting TV DX page regarding 
distant reception of digital TV. http://pages.cthome.net/fmdx/.

Certainly, when analog TV goes dark, it will be very interesting to see how 
many people are prepared.

David Crosthwait
DC Video 
Archive Videotape Re-mastering
177 West Magnolia Blvd.
Burbank, CA. 
818-563-1177 (fax)
818-285-9942 (cell)

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