1964_IMPORT_AND_EXPORT_(STRATEGIC_COMMODITIES)_REGULATIONS — Page 61

1988 Ed.]

Import and Export (Strategic Commodities) Regulations

[CAP. 60

G 61

[Subsidiary]

(3) Electronic noise sources for vertically directional use only, or mechanical (e.g. air gun or vapour-shock gun) or chemical (e.g. explosive) noise sources;

(4) Acoustic systems or equipment for positioning surface vessels or underwater vehicles, provided:

(a) Their control capability is limited to release and basic transponder capabilities;

(b) They are not capable of processing responses from more than four beacons in the calculation of a single point, and have neither devices nor software for correcting automatically velocity-of-propagation errors for point calculation, nor any coherent signal processing means;

(c) They are capable only for operating within a range of less than 1 000 metres or, if capable of operating beyond a range of more than 1 000 metres, are not capable of achieving positional accuracy of better (less) than 20 metres when measured at a range of 1 000 metres;

(d) Transducers, acoustic modules or hydrophones therefor are not designed to withstand pressure during normal operation at depths greater than 1 000 metres; and

(e) Beacons therefor are not designed to withstand pressure during normal operation at depths greater than 1000 metres, do not have oscillators with a stability greater than 10-5 over periods of 24 hours, and do not use complex codes or beamformers which have shaded or formed beams;

(B) Passive (receiving/whether or not related in normal application to separate active equipment) acoustic hydrophones or transducers having all of the following characteristics:

(1) Incorporating sensitive elements made of piezoelectric ceramics or crystal, and with a sensitivity no greater than -192 dB (reference 1 volt per micropascal);

(2) Not designed for operation at depths greater than 100 metres;

(3) Independently mounted or configured and not reasonably capable of assembly by the user into a towed hydrophone array;

(ii) Terrestrial systems or equipment having both the following characteristics:

(a) Not reasonably capable of conversion by the user to underwater or marine applications embargoed by this Item;

(b) Not employing geophones or other transducers embargoed by this Item.

Notes

1. Signal-and-data-processing parameters for related equipment are defined in Items IL 1529 and 1565, and parameters for related cable in Item IL 1526.

2. Magnetic detection and locating apparatus are covered by Item IL 1571.

4.

5.

Nothing in this Item shall permit the export of technology or technical data associated with the design, manufacture or upgrading of an item excepted from embargo by this definition, when such technology or technical data are also relevant to equipment embargoed by this definition.

With respect to repairs and alterations to ships owned and controlled by organizations in proscribed destinations, then those systems or equipment embargoed by Item IL 1570 shall not be installed pursuant to such repair or alterations, unless previously approved.

(See also Item IL 1416.)

Acoustic systems or equipment embargoed by this Item for use in positioning surface vessels or underwater vehicles are systems or equipment using acoustic travel time differences between beacons operating as responders, transponders or independent transmitters and one or more hydrophones carried by a surface vessel or underwater vehicle.