PDU-4
Last updated
Last updated
PDU-4 is a Russian binocular rangefinder with day optics with a 360° digital compass and a laser rangefinder. It provides distance measurements up to 9 km with 7x magnification.
The engraved reticle has a long line spacing of 10 mils and short line spacing of 5 mils. 1 mil corresponds to 1 m spacing at a distance of 1 km. In the image below you can see a 1 m cube being sighted at 100 m being exactly 10 mils.
While looking through the binocular view you can perform the following actions:
Press and hold R key. Hold target for ~2 seconds in red targeting square. Release R key.
Measures distance in meters to target.
Press and hold V key. Hold target for ~2 seconds in red targeting square. Release V key.
Measures azimuth in degrees to target.
Press and hold R+V keys simultaneously. Hold target for ~2 seconds in red targeting square. Release R+V keys.
Measures distance in meters and azimuth in degrees to target.
Press and hold R, tap C to mark first point, move to second point and release R
Measure distance between 2 points.
Tap R once, press and hold R, tap C to mark first point, move to second point and release R
Measure horizontal and vertical distance between 2 points. The vertical distance is shown in the range indicator on the left. The horizontal distance in the azimuth indicator at the top.
Tap V once, press and hold V for ~2 seconds and release.
Measure azimuth and inclination to a point. Inclination, in degrees, is shown in the range indicator on the left.
Tap R once, press and hold R for ~2 seconds and release.
Measure horizontal and vertical distance to a point. The vertical distance is indicated in the range indicator on the left.
Press and hold V, tap C to mark first point, move to second and release V.
Measure distance and azimuth between two points.
Tap V, press and hold V, tap C to mark first point (original target), move to second (arty impact) and release V.
The results are displayed together with letters (A. - add, d. - drop, L. - left, r. - right) which indicate the necessary correction terms together with the distance.
Example: If a shot is left and short, the correction is r.. and A.. with the appropriate value.
Measure fall of shot between target and arty impact for correction.
Due to unavailability of documentation, the functionality of the PDi in game is identical to that of . We suspect that in real life it is also close.
