Nueva normativa de potencia transmitida en HF

Hola,

Al parecer la F.C.C., que es la "Teleco" de los yankis, tiene una propuesta de modificacion del reglamento de radioaficionados por el cual las potencias transmitidas maximas permitidas pasan a fijarse en funcion de la potencia radiada.

Hasta ahora en HF solo se marcaba el maximo de vatios de salida, indistintamente de la ganancia de la antena. Ahora pretenden tener en cuenta la ganancia de la antena en esa formula.
Eso ya se hace aqui pero en VHF solamente.

Creo que eso tiene varias lecturas.

.- Las estaciones con grandes antenas tendrian limitada mucho su potencia (adios a los "Big Gun").

.- Por otro lado estarian promoviendo el uso de altas potencias con antenas sencillas.

Para entenderlo mejor, varios kilovatios con un dipolo seria equivalente a unos pocos vatios con una gran directiva.

Aqui tengo el texto original en ingles;

Escribió:

Today, in a move reflecting the power density per kilohertz of the various amateur radio H.F. operating modes, the commission announced the proposed new amateur H. F. power limits, as described below.

CW--100 watts output,?or 1,000 watts E.R.P. (whichever is greater)
SSB--500 watts peak output, or 20 Kw peak E.R.P.? (whichever is greater)
Digital modes (less than 1 khz bandwidth)-- 50 watts, or 2,500 watts peak?E.R.P. (whichever is greater)
Digital modes (1 to 6 khz max. bandwidth)-- 250 watts, or 10 Kw peak E.R.P.(whichever is greater)
FM, 5 khz or less bandwidth--250 watts, or 10 Kw peak E.R.P. (whichever is greater)
AM, 8 khz max bandwith, 1,000 watts, or 100 Kw peak E.R.P.

These new power limits take into consideration the need for higher power for some modes than others, and will also help to "level the playing field" by allowing higher power transmitters with lower gain antennas 25 KW into a 40 meter 3db gain antenna would be legal, or, if you have the antenna, 5KW into a 10 db gain yagi would also be legal, as both situations would be within the 50 Kw E.R.P. limit. (5Kw into a 13 db gain antenna would be illegal, as this would give 100 Kw E.R.P.)

These new limits will encourage, and help "equalize" operation and signal strength from stations with smaller antennas, by permitting them to use higher transmit power, to make up for the lesser antenna.

As an additional consideraton, possession of an amplifier designed to provide in excess of 30 Kw peak output, regardless of antenna system,will be considered a violation of the law. (This means that if full E.R.P. is desired, for all modes, you must utilize an antenna with some gain)

73, Maximo - EA1DDO