Sutron Satlink 3 - Page 136

Sutron Corporation Satlink Operations & Maintenance Manual, Rev 8.04.2 11/3/2016 pg. 136
15.1.1.1. Pseudobinary B Random Example
Here is an example random transmission with three active measurements; each one is set to
include two readings:
2@@Gt@Gs@Sx@Sr@@i@@iEXTBAAODAXe@GL
Decoding the message
Pseudobinary values
Decoded
into
decimal
Completely
decoded
Description
2
Denotes Pseudobinary B
format
@
0
0 min
Delta time
@Gt
500
5.00
Stage #1
@Gs
499
4.99
Stage #2
@Sx
1272
12.72
Precip #1
@Sr
1266
12.66
Precip #2
@@i
41
41
Temp #1
@@i
41
41
Temp #2
EXT
External Data
(no formatting is done by
Satlink)
BAAODAXe
Lat 39o 1' 15" Long 77o 24'
37"
@G
7
7
Transmission count. This is
the 7
th
random since bootup.
L
12
13.4V
Battery voltage
(12*0.234+10.6 )
15.1.2. Pseudobinary B for non-Random Txs
If the Pseudobinary B format is used for any transmission type except Random, it will have the
fields listed below. Scheduled and Alarm transmissions will use this format.
Field
Pseudobinary B for Scheduled and Alarm Txs
BLOCK IDENTIFIER
BLOCK-IDENTIFIER is always sent as B to indicate the start of a binary data
group.
GROUP ID
GROUP-ID is sent as 1 to indicate a scheduled transmission. Other
transmissions, including alarms, send 2.
OFFSET
Each record is prefixed with an <OFFSET>, which is a 1 byte binary encoded
number indicating the number of minutes ago the most recent data was
recorded. .
MEASUREMENT
DATA
Measurement data collected: This data contains only those measurements set
up to be included in the transmission (see Tx Data Content). The data values
are 3 byte binary encoded signed numbers allowing a range of: -131072 to
+131071. The actual 6-bit binary encoded format is described later. The value