Vaisala CT25K - Data Message No. 7

Ceilometer CT25K
User’s Guide CT25K-U059en-2.1
40
055 The second number of line: Height of the 1st cloud layer (5 500 ft
or 550 m depending on feet or meter selection)
5 The third number of line: Cloud amount of the 2nd layer in oktas
170 The fourth number of line: Height of the 2nd cloud layer (17 000
ft or 1 700 m depending on feet or meter selection)
0 The fifth number of line: Cloud amount of the 3rd layer in oktas
/// The sixth number of line: Height of the 3rd cloud layer
0 The seventh number of line: Cloud amount of the 4th layer in oktas
/// The eighth number of line: Height of the 4th cloud layer
The reporting resolution is 100 ft or 10 m depending on feet or meter
selection. If the cloud amount is zero the corresponding layer height is "///".
4.4.7 Data Message No. 7
Message number 7 is similar to message number 2 but extended with a sky
condition (section 5.4) line. The sky condition line is identical to that of
message number 6. For interpretation, see paragraphs 4.4.2 and 4.4.6. Below
is an example of message number 7.
(CTA2070J↵
50 ///// ///// ///// 00000200↵
100 N 101 +19 90 200 +6 21 LF7HN1 27↵
0000003000400030003000300020003000300030001000100010000000000000000↵
0160000000000000000000000000000FFFF00010000000200000001FFFFFFFE0000↵
032FFFC0000FFFE00000001FFFF000000010000FFFE000000020000000000000004↵
0480000FFFE00030007FFFE0000FFFEFFFE000100050011FFFF000000000000FFFE↵
0640001FFFEFFFF0000000000020000000100000000FFFF00010003FFFEFFFE0000↵
08000010000FFFF0002FFFEFFFEFFFEFFFD000000020001FFFEFFFD000000000001↵
0960002000300000000000000010000FFFF000000000000FFFC0000FFFFFFFEFFFF↵
1120000000000000001FFFCFFFF00000002FFFE00000000FFFFFFFF00010000FFFE↵
128000000000000000000010000FFFFFFFF00000000FFFE00000000000300000001↵
144000200010000FFFFFFFFFFFEFFFEFFFFFFFF00000000FFFE0001FFFFFFFF0000↵
160FFFE0000FFFE0015004300B200B300E300540022000C0030FFFF000000000001↵
176FFFF000000000001FFFC00000000000000000001FFFF0000000100000001FFFD↵
192000000000000FFFE00000000000100010001000000000001FFFFFFFFFFFFFFFE↵
2080000FFFE0000FFFE00000001FFFF000000020000000000010000FFFFFFFF0001↵
22400000000FFFE000000020001FFFEFFFFFFFEFFFF000000000001000100010001↵
240FFFE0000FFFE0000FFFFFFFD0000000400000001FFFF00000000000000000000↵
1 028 5 135 0 /// 0 ///↵
L↵
Transmission size and time for Msg7 is :
total 1223 characters
=> 5.1 s at 2400 baud (10 bit char.)
=> 147 kBytes/h, 3.52 MBytes/d, 106 MBytes/mo. at 2 msg/min,
uncompressed