Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p184
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 534103–537278

6. A. 001. a. 1. e. Active individual sonars, specially designed or modified to detect, locate and automatically classify swimmers or divers, having all of the following, and specially designed transmitting and receiving acoustic arrays therefor:
1. Detection range exceeding 530 m;
2. Determined position error of less than 15 m rms (root mean square) when measured at a range of 530 m; and
3. Transmitted pulse signal bandwidth exceeding 3 kHz;
N.B.: For diver detection systems specially designed or modified for military use, see the Military Goods Controls.
Note: For 6A001.a.1.e., where multiple detection ranges are specified for various environments, the greatest detection range is used.
6. A. 001. a. 2. Passive systems, equipment and specially designed components therefor, as follows:
Note: 6A001.a.2. also applies to receiving equipment, whether or not related in normal application to separate active equipment, and specially designed components therefor.
6. A. 001. a. 2. a. Hydrophones having any of the following:
Note: The control status of hydrophones specially designed for other equipment is determined by the control status of the other equipment.
Technical Notes:
For the purposes of 6A001.a.2.a.:
1. Hydrophones consist of one or more sensing elements producing a single acoustic output channel. Those that contain multiple elements can be referred to as a hydrophone group.
2. Underwater acoustic transducers designed to operate as passive receivers are hydrophones.
6. A. 001. a. 2. a. 1. Incorporating continuous flexible sensing elements;
2. Incorporating flexible assemblies of discrete sensing elements with either a diameter or length less than 20 mm and with a separation between elements of less than 20 mm;
3. Having any of the following sensing elements:
a. Optical fibres;
b. 'Piezoelectric polymer films' other than polyvinylidene‑fluoride (PVDF) and its co‑polymers {P(VDF‑TrFE) and P(VDF‑TFE)}; or
c. 'Flexible piezoelectric composites';
d. Lead‑magnesium‑niobate/lead‑titanate (i.e., Pb(Mg1/3Nb2/3)O3‑PbTiO3, or PMN‑PT) piezoelectric single crystals grown from solid solution; or
e. Lead‑indium‑niobate/lead‑magnesium niobate/lead‑titanate (i.e., Pb(In1/2Nb1/2)O3‑Pb(Mg1/3Nb2/3)O3‑PbTiO3, or PIN‑PMN‑PT) piezoelectric single crystals grown from solid solution;
4. A 'hydrophone sensitivity' better than ‑180 dB at any depth with no acceleration compensation;
5. Designed to operate at depths exceeding 35 m with acceleration compensation; or
6. Designed for operation at depths exceeding 1,000 m and having a 'hydrophone sensitivity' better than ‑230 dB below 4 kHz;
                  Technical Notes:
1. For the purposes of 6A001.a.2.a.3.b., 'piezoelectric polymer film' sensing elements consist of polarized polymer film that is stretched over and attached to a supporting frame or spool (mandrel).
2. For the purposes of 6A001.a.2.a.3.c., 'flexible piezoelectric composite' sensing elements consist of piezoelectric ceramic particles or fibres combined with an electrically insulating, acoustically transparent rubber, polymer or epoxy compound, where the compound is an integral part of the sensing elements.
3. For the purposes of