[BC] HDTV rollout wrinkle

[RichardBJohnson at comcast.net]

Of course with Analog TV transmitters, the power rating was peak-of sync, while "black power," was was peak divided by 1.68, looking at UHF transmitter specifications of yester-year, I see that 50 kW was the top power for klystron TV transmitters in the US, but Europe had higher powers. To me, this means that 50 kW was probably defined by regulation. Combine that with an antenna power-gain of 4 or more, and you get the "quarter million" ERP that I remember loudly boasted by UHF broadcasters.

WATR-TV, when I was CE, ran 50 kW from the transmitter.

Cheers,
Richard B. Johnson
Book: http://www.AbominableFirebug.com/

----- Original Message -----
From: "Milton R. Holladay Jr." <miltron at mindspring.com>

It WAS 100kW low amd 316kW high band.....for NTSC; dunno anymore
M
----- Original Message ----- 

> I have never seen what the actual maximum ERP's are for the various 
> bands. I see lots of 1000KW ERP on UHF channels, but the VHF operations 
> seem to be all different power levels. Presumably, there is a maximum 
> power level for low and high band VHF, just as there was for analog. I'm 
> sure someone has this information.