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To: 49thMIMOMander who wrote (21992)8/29/2002 8:29:56 PM
From: 49thMIMOMander  Respond to of 34857
 
Btw, on a more technical telecom side, finland moved the analog TV-bands over to the
higher (1950-ultra) frequencies that US never really got to, long before 1999. Thus the traditional
goody-goody lower frequencies are now free for digital TV.

No CSPAN, digital must carry, to kick around politically.

Ilmarinen

If Andy does not know, Brian Lamb clearly knows.



To: 49thMIMOMander who wrote (21992)8/29/2002 8:49:43 PM
From: 49thMIMOMander  Respond to of 34857
 
Ho-ho, can it get funnier than this, without Santa Claus arriving tomorrow

VSB versus COFDM reception made at two locations in downtown Baltimore.18 Reception was
attempted using a “bow-tie” type UHF antenna mounted on a tripod approximately 5-6 feet off
the ground. The antenna was then rotated 360 degrees and the range over which reception was
achieved was recorded. If no reception was achieved with the bow-tie antenna, a second, small
UHF indoor reflector-type antenna was used. Sinclair indicated that they considered service
acceptable where reception was achieved over a complete 360 degrees rotation of the antenna.
Both locations visited during the demonstration were within about eight miles of the WBFF-TV
transmitter. The first location was on Lombard Street. Measurements were taken on the
sidewalk at street-level. At this location, both COFDM and 8-VSB reception were achieved
using the bow-tie antenna. However, reception using the COFDM system was easier to acquire
and was maintained over a full 360 rotation of the antenna.19 8-VSB reception at this location
was achieved over two arcs of about 60 degrees each, or about 120 degrees. In addition, the
antenna had to be rotated more slowly and carefully for 8-VSB reception. The second location
visited was an 11 th floor apartment located in the Baltimore Harbor area on Lee Street. This
location faced away from the transmitter site so that only reflected signals could be received. At
this location, only COFDM reception was achieved with the bow-tie antenna. 8-VSB reception
was only possible by placing the reflector type antenna in direct contact with the aluminum
window frame. Those in attendance postulated that this effectively permitted the entire window
frame and surface to become part of the receiving system. In general, reception of COFDM was
better than 8-VSB at the two sites visited. Sinclair engineers indicated that at both locations
analog TV reception was either very poor or not acceptable with simple indoor antennas.
As a result of these demonstrations, Sinclair argued that today, DTV does not work.

Ouch...

For COFDM, it reports successful reception at all 31 sites with a Nokia receiver and at 21 of 25
sites with an NDS receiver.

But it gets even better, much better, after "Reports in the Press"

Random pick "Other reactions from broadcast engineers were typified in the statements by Andy Setos of Fox that “we didn’t learn much new” and “we know chips are being developed to address those matters.”