[opendtv] Re: 200 Mile 8VSB Reception
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Wed, 17 Jan 2007 16:36:23 -0500
John Shutt wrote:
> Good for you, Bert.
>
> Here is Jan's 1999 report in full. Bottom line: Both systems
> were received from 62.2 miles away from a 50 KW erp transmitter.
John, I believe in full and honest disclosure. If you mention the
Sinclair tests, then talk about the Sinclair tests. Not someone else's
test.
In any event, my takeaway from Jan's test was that in the far field, the
receivers were roughly equal. "Subjectively, there were slightly more
glitches using COFDM than using 8-VSB."
Therefore, if 8-VSB receivers are updated and improved to the point
where urban reception is good, e.g. in-Mark-Schubin's-apartment good,
THEN we can finally stop obsessing over COFDM and instead concentrate on
making things happen with what we've got.
It's high darned time, John.
Also, note that the sensitivity of all of the receivers was just so-so.
All but one were -78 dBm, which is not so impressive. Must have had
highish noise figures.
Here's an example of making things happen. I notice that Mark Aitken's
CW 54 station has gone blank in 54-2 and 54-3. Past couple or three
weeks, I believe. Hey Mark. What are your plans? How about France 24 on
one of those, as a perfect OTA substitute for CNN? Also, add a third
subchannel to Fox 45.
Thanks!!
Bert
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