[opendtv] A low-band VHF transmisison datapoint
- From: "John Willkie" <johnwillkie@xxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 13 Jan 2009 13:07:57 -0800
Those who are fearful of low-band DTV transmission conditions might take
heart with this news.
My first customer, Jeremy Lansman of KYES-DT Anchorage, Alaska has an analog
on channel 5, and a digital allocation on 22. He made a conscious,
well-informed (he believes) decision to keep channel 5 as his DTV allocation
post-transition, even though few stations will keep their low-band VHF
channels due to the potential for terrestrial interference.
Last night, he conducted a prime-time test. He put an old (no
predistortion, probably not very linear) Harris analog transmitter into
digital service using a rather Rube Golgergian setup. The transmitter power
output was 18.5 kw. He solicited viewer calls and emails.
One data point of interest; a viewer about 70 miles away that night received
his first digital television service. The other stations in the market
(UHF) with very expensive setups, cannot reach this guy. Jeremy anticipates
that when/if he actually spends some money and uses more modern equipment,
his channel 5 dtv system will work "just fine." (I think he can flash-cut
to more modern equipment on Feb 17.)
Now, Alaska's RF situation may not be directly convertible to Philadelphia,
but this is promising news.
John Willkie
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