Tzale
Proud Libertarian Conservative
Premium
join:2004-01-06
Sweden
 ·Verizon FIOS
 ·Optimum Online
| reply to BodyBumper
Re: Why am I not suprised
said by BodyBumper  :Not everyone has a clear LOS with OTA Digital TV towers and until this problem is fixed (and it won't) services like the now defunct USDTV and this will fail. Unlike cellular towers which are everywhere, in most TV markets 1 tower services hundreds of miles and of course with OTA digital you either get a good signal or you don't. Cell phones and OTA TV service are two different things.... OTA TV service should have no problems going up to 100 or more miles.... It's also broadcasting a couple hundred thousand watts probably, compared to a cell phone broadcasting a quarter of a watt or so. It also uses different parts of the radio spectrum, thus different propagation characteristics.
-Tzale
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NOCMan
Verizon Fios User
Premium
join:2004-09-30
Flower Mound, TX | Cell towers output at high power as well. For every 3 feet of air the power is reduced by 1/2. |
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Tzale
Proud Libertarian Conservative
Premium
join:2004-01-06
Sweden
·Verizon FIOS
·Optimum Online
| said by NOCMan :Cell towers output at high power as well. For every 3 feet of air the power is reduced by 1/2. Hmmm, I thought it had to do with the Inverse Square Law.
The energy or intensity decreases by a factor of 1/4 as the distance is doubled
-Tzale
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EnasYorl
Thieves World
join:2001-12-02
West
 ·Verizon Online DSL
| reply to NOCMan
said by NOCMan :Cell towers output at high power as well. For every 3 feet of air the power is reduced by 1/2. Cell towers are low power less then 1k Watt ERP. TV broadcasters are 100K Watts with a 1 million Watt ERP on an attennae array.
And your loss in Air isn't true for power.
It's the inverse square law. You have to square the power output of a tower to get a 3db (x2) increase in power x distance away. |
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RR Conductor
RailRoadDude
Premium
join:2002-04-02
Redwood Valley, CA
·Comcast
1 edit | reply to Tzale
Maybe 100 miles in flat New Jersey, but in mountainous areas like here in NorCal, signals have to be retransmitted via translators. TV signals, like FM and cellular are line of sight, put high mountains in front of the towers and you lose your signal. |
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Tzale
Proud Libertarian Conservative
Premium
join:2004-01-06
Sweden
·Verizon FIOS
·Optimum Online
| said by RR Conductor :Maybe 100 miles in flat New Jersey, but in mountainous areas like here in NorCal, signals have to be retransmitted via translators. TV signals, like FM and cellular are line of sight, put high mountains in front of the towers and you lose your signal. NJ isn't really flat, it's quite hilly, and we also have mountains believe it or not. 
I know a lot of the transmissions now come from the Empire State Building, which is the tallest structure in this area. It used to be the WTC, so we certainly have a "better" signal than most areas probably.
-Tzale |
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RR Conductor
RailRoadDude
Premium
join:2002-04-02
Redwood Valley, CA
·Comcast
1 edit | You mean those bumps you call mountains?  I've been there, I know it has hills, but to a westerner like me accustomed to mountains up to 14,500 feet, it's flat  |
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Tzale
Proud Libertarian Conservative
Premium
join:2004-01-06
Sweden
·Verizon FIOS
·Optimum Online
| said by RR Conductor :You mean those bumps you call mountains? I've been there, I know it has hills, but to a westerner like me accustomed to mountains up to 14,500 feet, it's flat It ain't flat to radio signals, LOL... I should know, I'm an Amateur Radio operator and deal with the curse / gift of NJ's "hills." Luckily, I live on top of a hill. LOL
-Tzale |
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