UHF is more robust than VHF (was Re: Digital TV receptionproblem)

Garrett Wollman wollman@bimajority.org
Sat Jun 20 23:31:27 EDT 2009

<<On Sat, 20 Jun 2009 23:18:16 -0400, "Rick Levy" <rlevy@broadcastsignallab.com> said:

> In terms of transmitter power output (TPO), yes.  But ERP doubles, since all 
> the power goes into a single (H) polarization, rather than dividing between 
> H and V (circular pol.).

Only insofar as the FCC has chosen to count them separately.  The same
number of photons at the same energy come out of the antenna heading
in the same direction.  The normal physics meaning of ERP would
consider them the same (particularly since "circular" polarization can
actually be achieved by emitting all the energy on a diagonal).


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