Long Term Deployment
Hello everyone. My team has been using hydromoths for years- love the product and appreciate the applicability in the marine environment- we use them to study manatee/dolphin vocalizations and manatee chewing sounds. We have never had an issues with our current program settings for short term deployments (<1 week) however we are attempting to get at least 4 weeks- but ideally 6 weeks- of data which shouldn't be a problem with our set up but the files stop recording 5-14 days after deployment. After several deployments and working few a through kinks I believe* I have determined the SD cards to be the potential issue. We have been using SanDisk Extreme 256 GB cards and PNY Pro Elite 256 GB cards. The SanDisk cards only record for 5-7 days while PNY record for 12-14 days. Given the SD card storage, the batteries should be the limiting factor with hydromoths lasting…
Thank you for your reply. We use Energizer Max AA. We have tried Energizer Ultimate Lithium batteries however they made a continuous clicking within the recording (on PNY and SanDisk SD cards) so we chose not to use them and opted for the Energizer Max AA. I see the SD comparison you provided, but don't see PNY. Do you know how that compares? When I pick up the hydromoth 6 weeks after deployment, the batteries are still working. I would have anticipated that the batteries were the limiting factor to recording duration but at some point the data stopped writing to the SD card. Can you explain why that is? I will discuss the possibility of changing the sample rate- however, if we keep it the same, would enabling energy saver mode help us lengthen deployments?