Overview
The Boresight Antenna Mast BAM 4.0-P is suitable in magnetic absorption chambers. The antenna mast, with the exception of the drive unit, is fabricated from plastic (PVC and reinforced fibreglass). The BAM 4.0-P has additionally an electrical tilt function from 0° to 45°, which automatically tilts during height scan. The tilting angle can be adjusted easily in accordance with the distance of the antenna to the EUT.
Metal parts are located only in the base plate and the drive mechanism (max. 0.3 m above ground level).
Antenna Adapters for all commercially available antennas are available upon request. All antennas during polarisation rotate around their axis to eliminate any elevation errors.
The IEEE 488.2 (GPIB) or LAN interface provides an additional control option for all functions, when operated with the NCD Controller.
| Technical Data | |
| Antenna height automatic adjustable from | 1.0 to 4.0 m |
| Total mast height | 4.6 m |
| Load capability non-tilted | max. 10 kg (when balanced) |
| Load capability when tilted | max. 6 kg (when balanced) |
| For long and heavy antennas a counter weight is required to balancing the load Depending on the distance of the antenna centre of gravity | |
| Material of antenna mast | Plastic + reinforced fibreglass weatherproof |
| Mast cross-section | 100 mm x 100 mm |
| Base L x W | 1.0 m x 0.7 m |
| Positioning speed adjustable between | 2.0 to 20 cm/sec. |
| Positioning accuracy | ± 0.5 cm |
| Pneumatic Polarisation | 0°/90° (vert./hor.) |
| Positioning time | approx. 3 sec. |
| Polarisation drive | Pneumatic rotary actuator |
| Control | Solenoid valve |
| Pressure | max. 6 bar |
| Tilt angle automatically adjusted during scan | 0° to 45° (depending on distance of EUT) |
| Tilt speed adjustable between | 1° to 7.5 °/sec. |
| Tilt accuracy | ± 0.5 |
| Motors | Brushless stepper motors 200 W |
| Interference suppression | 20 dB under limits EN 55022 class B |
| Current consumption | max. 5A |
| Voltage | 100-240 VAC, 50/60 Hz, single phase |
| Discharge current | 25mA per drive unit (higher in the moment when powering on) |
| Control cable | Fibre optic lines |
| Remote control via | IEEE interface (optional Ethernet) |
| Antenna support drive | 2 toothed belts |
| Material of toothed belts | Kevlar reinforced (non-metallic) |
| Temperature range | +10 °C...+35 °C |
| Total weight | approx. 75 kg |
| Accessories | Interface to NCD Controller 1.5 m power supply cable Service manual |
