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Gyro USBL – Technical Bulletins

24 June 2021

Technical Bulletins relating to Gyro USBL can be viewed and downloaded by clicking on the link below.

Storage and operation temperatures TB16-006

This technical bulletin has been issued to draw customers’ attention to a potential issue with all variants of HPT or GyroUSBL caused by either inadvertent storage or operation at temperatures exceeding the stated specifications.


Lodestar based product export licensing TB13-007

Sonardyne has received several enquiries from Customers who have purchased Sonardyne Lodestar based products (currently Lodestar, SPRINT, Lodestar GyroCompatt and Lodestar GyroUSBL) about the requirement to have the product licensed by the US Department of Commerce. This document describes the US Department of Commerce licensing requirements for Lodestar based products.


Lodestar based product export licensing – TB13-003

Sonardyne is pleased to issue new guidelines on the re-export licences for our Lodestar GyroUSBL and Lodestar GyroCompatt products. These products contain components which are licensed under the EAR by the US Department of Commerce.


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