[IRCA] Brazilian SR/SS table

[Glenn Hauser <wghauser@xxxxxxxxx>]

** BRAZIL. HORÁRIO LIMITE DE SERVIÇO DIURNO DAS EMISSORAS DE RADIODIFUSÃO
SONORA EM ONDA MÉDIA (Tempo Legal) is available at:
http://www.anatel.gov.br/biblioteca/resolucao/1999/anexo8_116.pdf 
(Tore B. Vik, ARC LA News Desk via DXLD)

A valuable document! Brazil, like the US, has day/night power change
requirements on MW, and like the US, the times change each month depending on
local sunrise and sunset, and furthermore like the US, are rounded off to the
nearest 15 minutes. Unlike the US, the exact location does not determine this,
but is the same in each state, some of which are quite large and local mean
time therefore also varies widely. The dedicated domestic Brazilian DXer could
apply this to determine the optimum time to DX certain stations, i.e. beginning
or end of month, east or west side of the state, etc. Times in the table are of
course local, generally UT -3. Some states span two timezones, as in the Notes.
This obviously does not take into account DST which is observed in the local
summer especially in the SE coastal states. In states near the Equator the
yearly variation does not amount to more than half an hour, while in RGS there
is a 2-hour variation (Glenn Hauser, OK, DX LISTENING DIGEST)


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