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.”