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How to get the most out of your SM2+ recorder

How to get the most out of your SM2+ recorder

Hello again All,

So, pop quiz, what firmware revision are your SM2s running? Right now? Do you know where your firmware is?

All joking aside, keeping your firmware updated is one of the easiest ways to make sure that your SM2 recorders are running up to snuff. Every time our engineering staff releases a new version, you can be assured that bugs will be fixed and (maybe) a few new features will be added. Let’s take a look one of the great things that the latest firmware revision as of this writing (3.2.5) holds for you: the SD Card Speed Test.

Preparation is the key to success

Preparation is the key to success

"Before anything else, preparation is the key to success."
            -Alexander Graham Bell

From the Tech’s Desk…

Hello All,

Noise logging with the SM2M+ Deep Water and Submersible recorders

Noise logging with the SM2M+ Deep Water and Submersible recorders

Pile drivers, shipping traffic and off-shore oil exploration are just a few of the anthropogenic contributors to an increasingly noisy ocean environment. We can only guess at the effects on marine life when noise levels can exceed 200 dB SPL every 10 seconds. As a result, our SM2M+ Deep Water and Submersible marine recorders are being used not only for recording the sounds of marine life, but also for noise logging. In fact, our products are unique in that they are designed to serve both functions.

With a recording bandwidth of 2hz to 48kHz (or 192kHz for the ultrasonic option), the SM2M+ recorders are perfect for capturing any ocean noise. The recorders log recording levels while making recordings and the log can be quickly converted to actual sound pressure levels (SPL) using the gain and hydrophone sensitivity settings. We provide calibration data with all recorders so as to assure accuracy of the SPL readings. Both ambient and peak measurements are logged.

The SM2M+ recorders also have great battery life, and there are several options to extend deployment. For example, you can employ a recording schedule to stop/start recording at select times. The patented SM2M+ sleep mode makes power consumption negligible in between recordings. Other means to lengthen deployment include Recording Compression or Adaptive Triggering, where the recordings are triggered by crossing a set sound level threshold.

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Merlin Tuttle's Bat Conservation Bat Conservation International Bat Conservation Trust Wildlife Habitat Counsil