At 8:11 AM -0400 4/21/04, Allen Le Roy Limberg wrote: >I think you have it backwards, Craig. COFDM needs higher power to reach >same radius, which makes it a worse co-channel interferor to other signals >than QAM or 8VSB. This is only true for the single big stick topology. This is NOT the way to build a modern transmission network. The GOAL is to deliver enough signal throughout the desired coverage area, while minimizing signal delivered into adjacent markets. This is relatively easy to accomplish using a network of lower powered transmitters with proper masks to keep the signal where it is wanted. Bottom line you get better coverage at lower emission power levels. The infrastructure costs a bit more to build, but less to operate in terms of the power bill -at the expense of needing to distribute synchronized signals to each transmitter. Fortunately, it is now possible to synchronize the transmitters cheaply. Reards Craig ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.