• | Pulse Duration The Pulse Duration setting specifies the current duration ("length") of the transmitted pulse. You can manually select a pulse duration that suits your operation. The deeper you wish to see, the longer pulse duration should be selected. However, when using CW transmissions a long pulse duration will reduce the resolution. It will also cause the ME70 system to transmit less frequent. Remember that in the ME70, the pulse duration and the bandwidth are mutually dependant.
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• | Sample Interval The information from each ME70 transducer is a continuous flow of analogue data. In signal processing, sampling is the reduction of this continuous signal to a discrete signal. We convert a sound wave (which is an analogue continuous-time signal) to a sequence of samples (which is a discrete-time signal). The sample rate is the average number of samples obtained in one second. The sample interval is 1/sample rate to allow readout in time (normally milliseconds).
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• | Power You can change the output power manually. Output power is limited either to the maximum rating of the transducer, or the maximum rating of the transmitter, whichever
is the smallest. For all practical purposes, this means that you can reduce the power output, but you can not increase it to beyond the power rating of the transducer.
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• | Receiver bandwidth Bandwidth is the difference between the upper and lower frequencies in the continuous band of frequencies the transceiver
uses.
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