High-power 660-nm GaInP-AlGaInP laser diodes with low

vertical beam divergence angles.

6 is the elevation angle in spherical coordinates and [[theta].sub.D,l0] is the downtilt angle of the

vertical beam in near sector.

Finally, the maximum

vertical beam deflection in metres is given by, y = 1/2 (J/[m.sub.e]) x 4.85 x [10.sup.-9] = 2.66 x [10.sup.21] J [m], where J is the calculated impulse [N-s].

One newly launched multiband antenna (by Swedish manufacturer CellMax Technologies) offers 21 dBi radiated power on the high band with 4[degrees] of

vertical beam.

With a laser that projects a

vertical beam, you can skip all these steps.

The second is the Lasar 40 active/passive system based on a network of arrays, the transmitter operating in the 30 to 45-kHz band with a horizontal beam pattern of 180[degrees], 270[degrees] or 360[degrees] for seabed mounting and jetty wall mounting, a

vertical beam width of 3[degrees] to 10[degrees] and

vertical beam steering of [+ or -] 10[degrees].

The tall, thin

vertical beam painted in fat, glossy white and red horizontal stripes--that, in the FriendsWithYou universe, serves as one in a herd of "giggle sticks"--could function in any other gallery space as minimalist sculpture.

In a traditional

vertical beam inspection system, the densest areas of the can--the top, base and sidewalls--appear on the operator screen as dark elongated edges.

Most notability, wave induced rolls expected during interdiction operations will exceed the

vertical beam angle of the original antenna system.

Work on the runway and its associated exit points proceeded as expected and after the lighting work was completed, a mobile airfield light monitoring system (MALMS) test was carried out to check the accuracy of the average main beam intensity, the

vertical beam alignment (elevation) error and the horizontal beam (azimuth) alignment error of the entire lighting pattern.

It is noted that prior to squinting, the column matrices produce

vertical beam stacks (4 per stack) that are all pointing in the same direction.

From the measured

vertical beam size (12) the coupling is estimated to be of order 1%.