 tschmidtPremium,MVM
join:2000-11-12
Milford, NH
kudos:5
 ·Fairpoint Commun..
 ·Hollis Hosting
| Signal Strength modeling The model used by the FCC to create equivalent coverage area compared to analog TV is not terribly accurate so in general DTV coverage area is smaller then analog. In addition DTV "suffers" from cliff effect. With analog picture quality slowly degrades with more and more snow. With digital it is perfect, if signal strength drops below critical threshold viewer experiences picture freeze or breakup, if signal drops even a little more no picture/sound at all.
If you want to learn more about expected signal strength in you specific location check out TVFOOL site. I've found it more useful then CEA AntennaWeb site.
If you are interested in the gory details of modeling:
»www.tvantenna.tv/papers/dtv%20co···tion.pdf
Something else to keep in mind is situation changes Feb 18 next year. Once analog goes dark some DTV stations move to other channel and/or change TX power.
/tom |
