Ceilometer CT25K
User’s Guide CT25K-U059en-2.1
36
4.4.2 Data Message No. 2
Data message no. 2 contains the range and sensitivity normalized backscatter
profile within a range of 0..25000 ft, which makes it suitable for e.g. graphical
plotting of the atmosphere.
Data resolution is 100ft = 30 m with distance, and 16 bits (four hex-ASCII
characters) with signal magnitude.
NOTE
Message no. 2 should not be used with slow baud rate and
short data acquisition interval; this may lead to overflow
of the transmit buffer. E.g. 300 baud rate requires 45 sec.
data acquisition interval with message 2. In case the buffer
is filling up, the response time to user command may
extend to minutes.
An example of data message no. 2 is presented below:
(
CTA2023
J
1st line 11 char.
30 01230 12340 23450 FEDCBA98↵ 2nd line 31 char.
100 N 53 +34 204 146 +2 621 LF7HN1 139↵ 3rd line 44 char.
00047F200000000000000000000000000000000000000050D010000000000000000↵
01600FFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFEFEFEFEFEFEFEFEFEFEFDFDFDFDFDFD↵
03200FFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFEFEFEFEFEFEFEFEFEFEFDFDFDFDFDFD↵
048FDFDFDFDFDFCFCFCFCFCFCFCFCFBFBFBFBFBFBFBFAFBFAFBFBFAFAFBFAF9FAF9↵
064FDFDFDFDFDFCFCFCFCFCFCFCFCFBFBFBFBFBFBFBFAFBFAFBFBFAFAFBFAF9FAF9↵
080F9FAF9F9F9F9F9F9F9F8F7F8F7F9F8F7F7F8F6F7F7F7F6F6F7F6F7F6F6F6F6F6↵
096F9FAF9F9F9F9F9F9F9F8F7F8F7F9F8F7F7F8F6F7F7F7F6F6F7F6F7F6F6F6F6F6↵
112F5F5F5F6F5F2F4F5F6F5F5F4F4F4F4F3F4F3F4F5F3F5F4F4F2F3F3F3F3F4F4F3↵
128F5F5F5F6F5F2F4F5F6F5F5F4F4F4F4F3F4F3F4F5F3F5F4F4F2F3F3F3F3F4F4F3↵
144F2F2EFF1F4F1F2F2F1F3F2F2EFF1EFF0F0EFF1EFF0F1EFF0F0F2F0EFF0EFEFF0↵
160F2F2EFF1F4F1F2F2F1F3F2F2EFF1EFF0F0EFF1EFF0F1EFF0F0F2F0EFF0EFEFF0↵
176EEF1EFEDEFEEEFEEEEF0EDF0F2EFEDEFEFEFF0EFECECECEEEAF0EDEDECEAEAEA↵
192EEF1EFEDEFEEEFEEEEF0EDF0F2EFEDEFEFEFF0EFECECECEEEAF0EDEDECEAEAEA↵
208EEF1EFEDEFEEEFEEEEF0EDF0F2EFEDEFEFEFF0EFECECECEEEAF0EDEDECEAEAEA↵
224F0ECEFEDF0ECEBEEEDEEE9EAEFF0EEECEAEDECEBEAEEE7EDEAEAEAEBECEAEAEA↵
240F0ECEFEDF0ECEBEEEDEEE9EAEFF0EEECEAEDECEBEAEEE7ED0000000000000000↵
L
↵
4...19 line:
16 * 69 = 1104 char.
12th line 3 char.
------------------
total 1193 char.
Transmission time and size :
5.0 s at 2400 baud (10-bit char.)
143 kbytes/h, 3.44 Mbytes/d, 103 Mbytes/mo. at 2 msg./min., uncompressed.
To Next Page
Loading...
