AN/SSQ-36 Bathythermograph Sonobuoy
The AN/SSQ-36 Bathythermograph (BT) sonobuoy is an A-size, expendable and non-repairable sonobuoy. The BT sonobuoy provides a thermal gradient measurement to the monitoring unit(s). The BT sonobuoy is an expendable thermal gradient measurement sonobuoy that operates on one of three or one of 99 Radio Frequency (RF) channels. It consists of a thermistor temperature probe that descends through the bottom of the sonobuoy canister producing a continuous reading of temperature versus depth. The thermistor temperature probe will descend to 1000, 2000, or 2625 feet, depending upon the sonobuoy selected.
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