Lotek Wireless Inc SRX600 User Manual
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C O D E L O G M O D E
1)Config## > 2)Scan Settings
Guide to the SRX 600 receiver Rev A #10112
Chapter
5 - - Page 47
1 ) C
O N F I G
# # > 2 ) S
C A N
S
E T T I N G S
U
N D E R S T A N D I N G
S
C A N
C
Y C L E S
A Scan Cycle is the time it takes for the receiver to scan all frequencies on all
antennas/hydrophones in the scan order specified. The amount of time a scan
cycle lasts depends on the number of frequencies and antennas/hydrophones, the
scan time and Total Scan Time. It also depends on two additional features: Time-
Out on Acquisition (TOA) and Master Antenna Preview.
antennas/hydrophones in the scan order specified. The amount of time a scan
cycle lasts depends on the number of frequencies and antennas/hydrophones, the
scan time and Total Scan Time. It also depends on two additional features: Time-
Out on Acquisition (TOA) and Master Antenna Preview.
Frequencies and antennas (radio antennas and hydrophones) are scanned in
the order they are entered into the receiver. This is referred to as the Scan
Order.
the order they are entered into the receiver. This is referred to as the Scan
Order.
The only conditions that can terminate a scan cycle are stopping data
collection, battery failure or if all available memory is filled to capacity.
collection, battery failure or if all available memory is filled to capacity.
The total scan time is the maximum amount of time a complete scan cycle can
take, but the actual time to complete a scan cycle can be less than this, since other
settings, like TOA, may cause the receiver to adjust the scan time adaptively.
take, but the actual time to complete a scan cycle can be less than this, since other
settings, like TOA, may cause the receiver to adjust the scan time adaptively.
If a scan cycle takes less than the calculated total scan time calculated then the
receiver can be setup to wait until the total scan time has elapsed before it starts
another scan cycle. Setting the total scan time allows multiple receivers to
synchronize their scan cycles and it is a power saving option, because the receiver
shuts down all antennas and lowers their gain while it waits for the total scan
time to elapse.
receiver can be setup to wait until the total scan time has elapsed before it starts
another scan cycle. Setting the total scan time allows multiple receivers to
synchronize their scan cycles and it is a power saving option, because the receiver
shuts down all antennas and lowers their gain while it waits for the total scan
time to elapse.
Any time the receiver is not actively scanning it shuts down all antennas and
lowers their gain to save power.
lowers their gain to save power.
S
E L E C T I N G
A
C
O D E
S
E T
A transmitter code is made up of four pulses that define three pulse intervals. The
time between repetitions of the code is called the Burst Interval. A pulse interval
is the period of time that elapses between two consecutive pulses in a code. Every
transmitter is assigned a unique code so that it, and any sensor data associated
with it, can be identified by the receiver.
time between repetitions of the code is called the Burst Interval. A pulse interval
is the period of time that elapses between two consecutive pulses in a code. Every
transmitter is assigned a unique code so that it, and any sensor data associated
with it, can be identified by the receiver.
In order for the receiver to interpret the pulse interval sequence it must reference
a library, which is called the code set. The code set used with the receiver specifies
a library, which is called the code set. The code set used with the receiver specifies