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Ref: ASD512

Système d'étude des antennes

ASD512 is a fully operational Antenna System Demonstrator, working at a frequency of 167.2MHz, giving a half-wave element of approximately 90 cm. It has been designed to provide an ideal classroom demonstrator. The system is provided with a kit of parts allowing many types of antenna to be constructed, making the system versatile as a demonstrator of both antenna principles and practice. The system has two hand-held detectors that show relative magnitudes of voltage and current fields around the antenna, and the field strength of the antenna. Practical demonstrations are described in the accompanying manuals, illustrating the principles involved and introducing the student to the various basic concepts of most types of antennas in common use.
The ASD512 comprises:
RF Generator Unit
Antenna Ground Plane (also the storage case)
Antenna
Detectors (2 off)
Comprehensive theory & experiment manual
Features
Fully operational antennas
Vivid displays of antenna characteristics
Convenient size for demonstrations
Versatile & easy to assemble
Complex concepts made easy
Reconciles theory & practice
Curriculum Coverage
Basic theory of radiation
Radiating & non-radiating systems
Feeders
Radiation resistance
Drive point impedance & ground resistance
Physical & electrical length
Directional antennas & radiation patterns
Parasitic arrays & antenna gain
Antenna with folded elements
Slot radiators
3-dimensional polar diagrams
Loop antenna

Caractéristiques techniques :
Transmitter - the equipment emits an unmodulated carrier at field strength not exceeding 0.5 Volt/metre at 30 metres
Frequency 167.2 MHz ±50 kHz. Power 0 - 5 Watts output
Ambient temperature 0° to +50°C
Metering Forward / Reverse Power 0 - 10 Watts
Detector charge - two outputs charging at 60 mA for 5 V. The transmitter can be amplitude modulated if required by miniature jack
Dimensions: width 1160 mm x depth 855 mm x height 127 mm
Weight: 18.2 kg

Matériel livré :
R F Generator Unit
Antenna Ground Plane (also the storage case)
Antenna
Detectors (2 off)
Comprehensive theory & experiment manua
Poids: 58 Kg