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SRX 400: Product Details: Datalogging |
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Datalogging refers to the automatic collection and recording of a set
of data that distinguishes a particular transmitter signal, or grouping
of signals, from others. Because it collects and records ("logs")
such data, the SRX_400 is referred to as a "datalogger".* Logged
data include date, time, frequency, code (in a coded system), signal strength
and antenna (where applicable). This set of data is referred to as the
"Event_Log" in non-coded systems, and as the "Code_Log"
in our coded system.
The SRX_400 detects and records the presence and pulse interval (or code) of valid signals based upon the transmitter frequencies entered in the frequency table. When a signal is detected, the program temporarily suspends scanning to collect and measure the duration of a user-specified number of group or pulse intervals. Defining this "Group Size" serves to further ensure the integrity of recorded signals. Measured intervals are thus sorted into identifiable types, or are rejected as noise. Any excessive noise is automatically suppressed through the temporary reduction of receiver gain until the scan routine cycles to the next frequency. Local ambient noise levels are evaluated after each scan cycle and the receiver makes incremental reductions in the baseline gain accordingly. The "aggressiveness" of the noise reduction routine is user-definable. Valid "Events" at any frequency within the user-selectable reporting period are recorded. At the end of each reporting period, the date and time, followed by a list of all valid events for that period, are transmitted in ASCII format over the RS-232 serial port. Contents of long term storage are non-volatile and may be retrieved at any time. *(N.B. The W1, W4 and W5 are not datalogging configurations.) |
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Full Product Details
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Freshwater
| Terrestrial | Marine
| Avian
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