Operation
R&S
®
ATS1000
50
Instructions Handbook 1179.2983.02 ─ 01
The upper end of each tube is flat, whereas the lower end has a protruding (cantilev-
ered) rim. This rim locks with the basic azimuth turntable or with the upper flat end of
another tube. This allows you to stack the tubes so that DUTs of various sizes can be
positioned at the antenna focus.
A DUT fixing plate (6) is designed to cover the top of the (stacked) tubes. The plate
has a diameter of 90
mm and adds another 10
mm to the height of the tubes.
Figure 7-4: Different metal DUT holders on the turntable platform
1 = Short DUT holder tube
2 = Medium DUT holder tube
3 = Long DUT holder tube
4 = Combined long and medium DUT holder tube (here with fixing plate and laser positioning target on top)
5 = Crank drive for lifting or lowering the turntable (remove crank before operating the arm; see
)
6 = DUT fixing plate
7 = Laser positioning target
Prerequisites for fixing your DUT to the DUT holder tubes:
●
has stacked the tubes to a height at which your DUT is approxi-
mately level with the rotational axis of the antenna positioner arm
●
has placed the DUT fixing plate on the top DUT holder tube and
screwed all elements together.
●
has screwed the DUT holder assembly to the turntable.
●
has threaded all cables required for connecting the DUT through
the holder and close to the DUT's position.
Figure 7-5: Example showing an assembly comprising all the metal DUT holder tubes
Left = Photo of the three metal tubes (the shortest one with fixing plate)
Right = Drawing showing how the tubes and fixing plate are joined
To place the DUT on the holder
► See
"To place a DUT in the chamber"
Placing a DUT in the Chamber