1967-HKRS30-8-58_Part02 — Page 38

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(ii) Provision for accepting ship's data as an electrical input:

(iii) Provision for setting in corrections for current set and drift:

(v) Vúlization of accelerometer, rale gyro, rate integral- ing gyros, or electrolytic levels as sensing devices;

(V) Provisions for determining and electrically transmit- ting ship's level reference data (roll, pitch) in addition to own ship's course data;

(4) Integrated flight instrument syslems, for aircraft which

include gyro-stabilizers and/or automatic pilots;

(c) Gyro-astro compasses and other devices which derive posi- tion and/or orientation by means of automatically tracking celestial bodies;

(d) Gyro-stabilizers used for other purposes than aircraft com-

trol except those for stabilizing an entire surface vessel; (e) Automatic pilots used for other purposes than aircraft com-

trol except marine type for surface vessels:

(f) Accelerometers with a threshold of 0.005 g. or less and/or a linearity of less than 0.25% of output over the operating range, which are designed for use in inertial navigation systems or fo guidance systems of all types;

(g) Gyros and gyro compasses, as follow-

(0) Gyros with a rated free directional drift rate (rated free precession) of less than 0.5 degrees per bour in a 1 g. environment;

(ii) Gyro compasses which incorporate gyros in (1) abovA or which, when operated in a gyro compass mode, have a compass error, before compensation, due to gyro drift of less than 1/30 of a radian (6/r' degrees or 1.918 degrees approximately) at 0 degree latitude;

(b) Specially designed parts, components and test, calibration

and alignment equipment for the above.

GROUP F.

ELECTRONIC EQUIPMENT INCLUDING COMMUNICATIONS AND RADAR.

4501.

1502.

1503.

Communication, navigation, direction finding and radar equip ment, not elsewhere specified.

Communication, detection or tracking equipment of a kind using ultra-violet radiation, infra-red radiation or ultrasonic waves; and specialized parts thereof.

(See also Munitions List, irem M.L. 15.3

Communication equipment employing tropospheric, ionospheric or meteoric scaner phenomena; and specially designed sub- assemblies, parts and test equipment therefor,

1507.

1510.

1514.

1316.

1317

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"Famming" apparatus (ie. apparatus specially designed to jam or otherwise interfere with radio reception); and specialized parts therefor.

Location apparatus, underwater; apparatus for delecting of locating objects under water by magnetic or acoustic or ultra- sonic methods, and specialized components of such apparatus, except-

(1) Marine depth sounders of a kind used solely for measuring the depth of water or the distance of submerged objects or fish and/or whales vertically below the apparatus;

(0) Specific types of horizontally operated fish and/or whale

finding equipment.

Pulse modulators capable of providing electric, impulses of peak power exceeding 200 kilowatts or of a duration of less than 1/10th micro-second, or with a duty cycle in excess of 0.002; and pulse-transformer, pulse-forming equipment or delay lines being specialized parts of such modulators.

Panoramic radio receivers as follows-

(a) Panoramic radio receivers (being receivers which search automatically a part of the radio-frequency spectrum and indicate the signals received); except ancillary equipment for commercial receivers, with which the frequency spec- tram searched does not exceed either ±20% of the inter- mediate frequency of the receiver or ± 2 mogacycles per second.

(6) Specialized parts for the panoramic radio receivers em-

bargoed by this item.

Radio transmitters and components, not elsewhere specified, (except radio relay communications equipment) as follows- (a) Transmitters or transmitter amplifiers designed to operate at output frequencies greater than 235 megacycles per second, other than-

() television broadcasting transmitters and amplifiers therefor operating between 470 and 960 megacycles per second;

(ii) frequency-modulated and applitude-modulated ground communications equipment required for use in the land mobile service and operating in the 420 to 470 megacycles per second band, with a power output of not more than 25 watts for mobile units and 100 watts for fixed units:

(ii) amplitude-modulated radiotelephone equipment used for search and rescue work operating on a frequency of 243 magacycles per second with a carrier power not exceed- ing 100 milliwatts;

(5) Transmitters or transmitter amplifiers designed to provide

any of the following features

(0) Any system of pulse modulation (This does not in- clude amplitude frequency or phase modulated television or telegraphic transmitters);

(i) Rated for operation over a range of ambient tem- peratures extending from below -40°C, to above +55°C: