Sutron Satlink 3 - Pseudobinary C Data Format

Sutron Corporation Satlink Operations & Maintenance Manual, Rev 8.04.2 11/3/2016 pg. 139
15.1.2.1. Pseudobinary B Scheduled Example
Here is a transmission with three active measurements; each one is set to include two readings:
B1@@Gt@Gs@Sx@Sr@@i@@iEXTLBAAODAXe@R@A
Decoding the message
Pseudobinary values
Decoded
into
decimal
Completely
decoded
Description
B
Denotes Pseudobinary B format
1
Scheduled transmission
@
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)
L
12
13.4V
Battery voltage (12*0.234+10.6 )
BAAODAXe
Lat 39o 1' 15" Long 77o 24' 37"
@R
18
1.8W
Forward power
@A
1
0.1W
Reflected power
15.2. Pseudobinary C Data Format
This format is based on the pseudobinary B format. It uses slightly more bandwidth than the B
format, but it is self-descriptive. It is used when the user selects Pseudobinary C as the choice for
Tx Format.
Block identifier
1
BLOCK-IDENTIFIER is always sent as C to indicate that this is the
pseudobinary C format.
Group id
1
GROUP-ID can be 1 to indicate a scheduled transmission, 2
meaning an alarm transmission, 3 indicating a forced
transmission, and 4 indicating a retransmission.
Measurement
Delimiter
1
This byte is always a + and it is used to denote the start of
measurement data.
Measurement
Index
1
This is encoded 6 bit binary encoded (see below) number which,
when translated, tells the measurement index. Satlink assigns a
measurement index (starting with 1 and ending with 16) to each
user setup sensor.
Day
2
This 2 byte encoded 6 bit binary encoded (see below) number
represents the Julian day of the year. The day tells when the
most recent (first) sensor reading of this measurement was
made.