c. Tripod. The tripod controls consist of mechanical devices used to
coarse and fine level the G/VLLD set when used in the ground mode.
clamp assembly located on each of the three legs provides for coarse
leveling. You fine level the G/VLLD set by adjusting the three turnbuckles
located between the tripod body and the adjustable legs.
The G/VLLD operates from a rechargeable 24 VDC battery, or from a 24 VDC
vehicle power source. When used with the AN/TAS-4 or AN/TAS-4B night sight,
the G/VLLD operates with 24-hour effectiveness.
A built-in laser light
filter allows the operator to use the G/VLLD without the use of goggles.
The G/VLLD operates in the following modes.
a. AZ ZERO Mode.
The AZ ZERO mode sets the RNG1/RNG2 mode azimuth
position reference with respect to the G/VLLD. This allows triangulation of
the G/VLLD position with respect to the grid coordinate.
b. RNG1/RNG2 Mode.
The RNG1 or RNG2 mode determines target polar
coordinates (azimuth, range, and elevation) with respect to the G/VLLD
location. RNG1/RNG2 mode operation is virtually undetectable. Figure 1-9A
illustrates the rangefinding application of the G/VLLD.
c. DES Mode.
In the DES mode, the G/VLLD designates a target by
providing a laser spot for the laser-seeking ordnance to home in on. Figure
1-9B illustrates the target designation application of the G/VLLD.