LA6NCA - GERMAN WWII GERETE PHOTOS

I will here show different special technical items.
Please send a mail if you know more about them.

Radar

Wurzburg , FuMG 62
Short-range ground fire control radar. Range 170km, frequency 560MHz, range precision 100m, angle precision 0.2 degrees.

Robert H. Koole, Tokyo, Japan wrote:
I believe (I could be mistaken) that it is a picture of an acoustic monitoring device used for detecting the
noise from aircraft engines. Unfortunately, not much is known about these.

Acoustic monitoring device used for detecting the noise from aircraft engines.

Hello, I show my mother this picture. She said the same as Robert H. Koole. In the near wehre she live in the 2. WK stands an "Horchgerät".
My mother said the must be a camp in the near. All over the night and live there about 20 People or soldiers. --- Greetings from Hamburg Stefan

Grzegorz Plonski wrote:
As both gentlemen already mentioned, this device above is an acoustic direction finder for detecting enemy planes.
More precisely, it's the RRH or Ringtrichterrichtungshoerer, the standard device used mostly in antiaircraft serchlight
batteries for initial aiming the searchlights at the target at night. It had a crew of three - traverse aimer at the left seat,
elevation aimer at the right seat and a calculator operator in the middle. The RRH could detect targets at distances
from 5 to 12 km, depending of weather conditions, operators' capabilities and target formation size, with directional
precision of some 2 deg.

Lichtsprechgerät 80 in use. Adjustment of the optic unit.This photo is extremely rare.
It is very important to adjust direction of the optic-unit within 0.2 degrees.

Lichtsprechgerät 80 in use. Communication is created via light.
That means that another soldier had to stay max.4-5 km away with a similar
Lichtsprechgerät 80 and point his light beam exactly into the other Lichtsprechgerät 80.

Grzegorz Plonski wrote:
The device above is the Kdo.Hi.Ger. 35 or Kommando Hilfsgeraet 35, an antiaircraft artillery command
device used as the secondary unit of a heavy antiaircraft battery (cal. 8,8 cm upwards), the primary unit
being either the Kdo.Ger. 36 or the Kdo.Ger. 40, both of them, as opposed to this one, were more complex,
coupled with a 4 m-class rangefinder and offered electric wire transmission of calculated elevation, traverse
and fuse setting to the guns. Range was given to the Kdo.Hi.Ger. 35 verbally from a free standing 4 m rangefinder,
while target's traverse and elevation were observed with two optical sights visible on both sides of the device.
Calculated values were given to the guns verbally via a phone line. The Kdo.Hi.Ger. 35 together with an
accompanying rangefinder were manned by 14 men, 9 of them operating the command device alone.

Grzegorz Plonski wrote:
This is a 4 m antiaircraft rangefinder, the EM 4 m R (H) 34 or 36, the Entfernungsmesser 4 m
Raumbild (Hochenmesser) 34 or 36, a standard 4 m-class rangefinder of heavy antiaircraft batteries.
It (as well as a newer, slightly different Em 4m R 40) could be used as a free standing on a tripod base,
as seen here - in co-operation with the Kdo.Hi.Ger. 35, or coupled directly with the Kdo.Ger. 36 or Kdo.Ger. 40.
The Em 4 m R (H) 34 or 36 were manned by 4 men (3 aimers and a commander) and could measure ranges
from 620 m (670 m in case of the model 34) to 50 000 m, as well as target's altitude.