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RO129 Antenna Rotator by Rohde & Schwarz

Companies & Organizations:

Germany

Rohde & Schwarz GmbH & Co KG
Muehldorfstrasse 15
81671 Muenchen


The R&S®RO129 antenna rotator is used to position multiple antennas in the azimuth and elevation/ polarization direction. To mount antennas on the rotator, two identical flanges are provided at both ends of the elevation/polarization axis.

 

The R&S®RO129 is designed as a moving rotator. The rotator housing, together with the antennas mounted along the elevation/polarization axis, rotates around a fixed mast. This design allows other, fixed antennas (e.g. DF antennas) to be installed above the rotator.

 

The rotator has a fixed center section, which serves as a mast adapter. The bottom flange of the mast adapter is mounted on a suitable flange at the top of an antenna mast. At the top flange of the mast adapter, another mast section can be mounted in order to install additional, fixed antennas (e.g. DF antennas) above the rotator.

 

Key Facts

 

Accurate positioning of multiple antennas in the azimuth and elevation/polarization direction

High delivered torque for carrying heavy or multiple antennas

 

Features & Benefits

 

Flexible remote control

The R&S®RO129 antenna rotator is intended exclusively for remote control and does not incorporate any control elements. It is controlled via a watertight MIL connector on its bottom side. The rotator is fully remote-controlled via a control cable either from an R&S®GB127S antenna control unit and an R&S®RD127 rotator control unit or from an R&S®FU129 antenna filter unit.

 

Easy integration into (existing) monitoring systems

Due to the flexible remote control via either the R&S®GB127S or the R&S®FU129, the R&S®RO129 antenna rotator can be easily integrated into monitoring systems. The R&S®ARGUS monitoring software supports both control units. The rotatable antennas are positioned either interactively via a convenient graphical user interface or fully automatically. As a result, even complex measurement tasks can be performed easily and reliably.

 

The LAN interface on the R&S®FU129 also allows remote control using other, suitable software products.

 

The electrical and mechanical interfaces are compatible with those of the AE/AR 1049 rotator. The R&S®RO129 can therefore easily replace existing rotators.

 

User-definable range of rotation

The range of rotation can be defined separately for the azimuth and the elevation/polarization axis. This is particularly useful when there are obstacles within the rotation range, or when topographical conditions allow only a specific sector to be covered. Robust limit switches integrated in the antenna rotator reliably switch off the drive motors when the end of the rotation range is reached.

 

Moving rotator concept for use of moving and fixed antennas on a single mast

The R&S®RO129 is designed as a moving rotator, i.e. the rotator and the antennas attached to it rotate around a fixed mast. This concept’s big advantage is that additional mast segments and antennas can be installed above the rotator. As the mast itself does not rotate, DF antennas, for example, can be mounted at the mast top, which is the ideal position for direction finding. The moving rotator concept therefore allows moving and fixed antennas to be used simultaneously on a single mast.

 

Specifications

 

Azimuth

Range of rotation                                      0° to 420°

Speed of rotation                                      typ. 2.2°/s (corresponds to approx. 160 s for a 360° rotation)

Maximum delivered torque                       typ. 300 Nm

Repeatability                                             typ. ±0.2°

Maximum bending moment                      15 000 Nm at top flange of mast adapter

Maximum axial load                                  5000 N vertical load on top flange of mast adapter

Power supply for drive motors                  28 V DC

Position feedback                                     linear potentiometer, 1 kΩ

Limit switches                                           integrated limit switches interrupt the power

                                                                 supply to the drive motors when the end position

                                                                 is reached in both directions of rotation

 

Elevation/polarization

Range of rotation                                     0° to 190°

Speed of rotation                                     typ. 9°/s (corresponds to approx. 20 s for a 180° rotation)

Maximum delivered torque                       typ. 80 Nm

Repeatability                                            typ. ±0.2°

Maximum bending moment                      2000 Nm

Maximum vertical load                             500 N (cumulative load applied to both flanges)

Power supply for drive motors                 28 V DC

Position feedback                                    linear potentiometer, 1 kΩ

Limit switches                                          integrated limit switches interrupt the power

                                                                 supply to the drive motors when the end position

                                                                 is reached in both directions of rotation

 

Interfaces

Control interface                                                                 MIL connector, 11-contact

Mast adapter, bottom                      flange with 6 holes      Ø 22 mm

                                                        pitch circle                   Ø 270 mm, 6 × 60°

                                                        flange thickness          25 mm

Mast adapter, top                            flange with 6 holes      Ø 22 mm

                                                        pitch circle                   Ø 140 mm, 6 × 60° 

                                                        flange thickness          25 mm

Elevation/polarization axis              flange with 8 threaded holes         M10

                                                        pitch circle                   Ø 100 mm, 8 × 45°

                                                        flange thickness          15 mm

 

General data

Operating temperature range                                             –30 °C to +55 °C

Storage temperature range                                                –40 °C to +70 °C

Relative humidity                                                                 95 % cyclic test, at +25 °C/+55 °C

Degree of protection                                                            IP65

Power consumption                                                             < 120 W

Dimensions                                     W × H × D                    430 mm × 750 mm × 730 mm

                                                                                                    (16.93 in × 29.53 in × 28.74 in)

Weight                                                                                 165 kg (363.76 lb)

Defense Products & Services: RO129 Antenna Rotator by Rohde & Schwarz
Companies & Organizations: 
Defense Products & Services Sectors: Communication equipment, accessories, ground-based, radio
Country: Germany
Description: RO129 Antenna Rotator
Source of Information: Rohde & Schwarz GmbH & Co KG