1988 Ed.]
Import and Export (Strategic Commodities) Regulations
[CAP. 60
G 77
[Subsidiary]
IL 1534
IL 1537
Notes:
1.
2.
This sub-item does not embargo instruments, the "user-accessible programmability" of which is provided by the original "manufacturer" and limited to:
(a) The replacement of fixed storage devices (e.g. ROMs) which do not change the embargo status of the instrument, or
(b) The selection of pre-programmed functions from a menu.
For the purposes of this Item, the "manufacturer" is the individual or organization designing the instrument for the intended application (in contrast to an individual or organization merely programming an instrument at, or in accordance with, a user's request).
(e) Including a scanning preselector for analyzing frequencies of more than 1 GHz;
(f) Incorporating a tracking signal generator for analyzing frequencies of more than 1 GHz;
(g) Having an overall display dynamic range of better than 80 dB;
(h) Employing time compression of the input signal;
(i) Employing Fast Fourier Transform techniques.
Technical Note:
Signal analyzers are instruments capable of measuring the basic properties of a signal in the time or frequency domain.
Notes:
1.
2.
3.
This Item is not intended to embargo optical spectrum analyzers.
Fast Fourier Transforms are described in e.g. 'Gauss and the History of the Fast Fourier Transform' by M T Heideman, D H Johnson and C S Burrus in IEEE ASSP Mag. 1, No. 4 (October), 12-21, 1984.
This Item does not embargo instruments embargoed only by sub-item (c), provided that the instrument is not capable of operating at frequencies over 2 GHz.
4. If the signal analyzer is an oscilloscope plug-in, see Item IL 1584 for associated mainframe.
(For logic and network analyzers and transient recorders, see Item IL 1529).
Flatbed microdensitometers (except cathode-ray types), having any of the following characteristics, and specially designed components therefor
(a) A recording or scanning rate exceeding 5,000 data points per second;
(b) A figure of merit better than 0.1, defined as the product of the density resolution (expressed in density units) and the spatial resolution (expressed in micrometres);
(c) An optical density range greater than 0 to 4.
Technical Note:
Density resolution (expressed in density units) is measured over the optical density range of the instrument.
Microwave (including millimetric-wave) equipment, including parametric amplifiers, as follows, capable of operating at frequencies over 1 GHz (other than microwave equipment embargoed by Items IL 1501, 1517, 1520 and 1529)-
(a) Rigid and flexible waveguides designed for use at frequencies in excess of 18 GHz,
(b) Waveguides having a bandwidth ratio greater than 1.7:1;
(c) Waveguide components, as follows:
(1) Directional couplers having a bandwidth ratio greater than 1.7:1 and directivity over the band of 20 dB or more;
(2) Rotary joints capable of transmitting more than one isolated channel or having a bandwidth greater than 5 per cent of the centre mean frequency, except those used in air traffic control equipment carrying combinations of frequencies suitable for secondary surveillance radar antennae co-mounted on a primary radar antenna and which do not have a bandwidth exceeding 5 per cent of the centre mean frequency;
(3) Magnetic, including gyro-magnetic, waveguide components;
(4) Diode waveguide components using diodes embargoed by Item IL 1544;