วารสาร Metrology Info ปีที่12 ฉบับที่57 ประจำเดือน กรกฎาคม-สิงหาคม 2553
1.
2. 4 WORLD
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World Metrology Day
ÊÒúÑÞ 8 SPECIAL
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Content
12 NIMT
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¼‹ Ò ¹Ãкº FM/RDS
19 METROLOGY
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20 NIMT
NIMT
24 26 th APMP General Assembly and
Related Meetings 2010
IMEKO 2010 : TC3, TC5 and
TC22 Conferences
2
Vol.12 No.57 July-August 2010
13. eo
Ntwrk Time Protocol RDS G
roup 4
A
P
GS
Receiver
RDS Ecoder
n c
x
Eiter
L-R Stereo Signal roadcast Station
B
5
.MH
2
0 RTAF
1 z
FM/RDS roadcast Sytem
B s
Antena Signal Processing Module
L-R Stereo Signal
Amp/Speaker
Digital Signal
Processing
Module Micro-Controller
CT Clock Data
Module Time Code
FM/RDS Receiver
13
Vol.12 No.57 July-August 2010
14. Modified Julian Day code UTC
B0TP Spare bits (5 decimal digits) Hour Minute Local time offset
+ PTY + + +
0 0 0 0 2 2 2 20 2 2 22 2 20 25 2 2 22 2 20 + 2 2 22 2 20
Modified Julian Day code Hour code Sense of local time offset
0= +, 1= -
14
Vol.12 No.57 July-August 2010
