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Technology Stocks : Cisco Systems, Inc. (CSCO) -- Ignore unavailable to you. Want to Upgrade?

To: RetiredNow who wrote (71025)	9/13/2006 9:07:09 PM
From: Eric	Read Replies (1) \| Respond to of 77400

MM Meant to comment on your isn't the very fact that you broadcast something over airwaves mean that there has to be a digital (at point of broadcast) to analog (for airwaves) to digital (for your TV). Isn't that right? Digital signals are transmitted out there as electromagnetic energy. Your cell phone receives and transmits digital signals directly but the important thing is the MODULATION type being used. What we call AM (in engineering terms)...ANCIENT MODULATION has been here since day one. Then FM showed up in the 1930's and then the race was on for other modulation formats. There are thousands of modulation schemes out there only limited the imagination of us crazy engineers! Our TV broadcasts here are analog modulation with one sideband suppressed to narrow transmitted bandwith. The NTSC standards committee in the early 1050's did a pretty good job considering that we still use it today. I'd have to check to be sure but all analog TV transmissions within the VHF and UHF bands have to stop in early 2008. You will then need a true HDTV or a converter box hooked up to your old "analog" set.