[BC] Overcoming system losses

[Phil Alexander]

On 26 Apr 2007 at 18:29, Cowboy wrote:

> Previously, you (Bailey, Scott) wrote:
>  > I bet Bob is having to push a bit more power out of the Nautel 400 watt
>  > box than 250 watts, just to make up for line loss and no real ground
>  > system, just to get a field reading equal to 250 watts.
> 
>   I'd bet not !
> 
>   The rules are pretty clear in that regard.
>   Without authority from the Commish, one can NOT run over license power,
>   even if one thinks it's justified.
> 
>   I know of no rule for licensed broadcast stations that authorizes
>   over license power to maintain field, though I do no of rules that
>   require reduced power to not exceed licensed field limits.

Granted, there is no allowance for poor ground systems, but if the 
point of measurement is at the tower base, line losses become moot.
If the line had 3 dB loss and you ran TPO at 500 W for 250 W at the
tower base it would be dumb with a capital D, but legal. (Assuming
you could find a line with that much loss that wouldn't burn up. <g>)


---------------------------------------------
Phil Alexander, CSRE, AMD
Broadcast Engineering Services and Technology 
(a Div. of Advanced Parts Corporation) 
Ph. (317) 335-2065   FAX (317) 335-9037