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Hi to All,
Thanks for your replies. In the meantime, via Bruno P. we learned some interesting facts about the energy savings DVB-T will allow. The now defunct Eiffel Tower SECAM L transmitters had the following EIRP:
TF1 channel 25 - 300KW
France 2 channel 22 - 215KW
France 3 channel 28 - 215KW
ARTE channel 30 - 100KW
M6 channel 33 - 100KW
Total power used: 930KW
DVB-T network:
Multiplex R1 channel 35 - was 41KW - now 50KW
Multiplex R2 channel 21 - was 22KW - now ch 25 - 50KW
Multiplex R3 channel 27 - was 21KW - now ch 22 - 50KW
Multiplex R4 channel 24 - was 23KW - now ch 30 - 50KW
Multiplex R5 channel 29 - was 21KW - now ch 28 - 50KW - all HD channels*
Multiplex R6 channel 32 - was 22KW - now 50KW
Multiplex R15 channel 23 - was 5KW - now ch 33 - 5KW
*4x FTA, 2x $$ subscription
Total power: 305KW
So, all in all, 7 times more channel, 1/3 the power.
The Eiffel Tower is the main transmitter, located in the center of Paris. It is relayed by 4 secondary transmitters for the suburbs & greater ile-de-France region located North, South, East and West of the city. Apparently they use a locked carrier technology so that for instance a Ch 35 transmission by the northern transmitter can be broadcast on the same frequency as the Eiffel Tower and have no beat interference. Wonder how they do that...
Also, all transmissions must convert to HD by 2015 so buyers of the cheap SD only adapters (MPEG-2) will need a new one (MPEG-4) for HD.
FYI, the cheapest adapter seen so far was a 19.95 Euro product, roughly US $30.00
Best Regards
jhalphen
Paris/France
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