A.H. Systems SAS-542 Manuale operativo - Pagina 5

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A.H. Systems AK-4G Antenna Kit

GENERAL INFORMATION

INTENDED PURPOSES

This equipment is intended for general laboratory use in a wide variety of industrial

and scientific applications, and designed to be used in the process of generating,

controlling and measuring high levels of electromagnetic Radio Frequency (RF)

energy. It is the responsibility of the user to assure that the device is operated in a

location which will control the radiated energy such that it will not cause injury and

will not violate regulatory levels of electromagnetic interference.

GENERAL DESCRIPTION

The A.H. Systems AK-4G antenna kit series consist of five E-field antennas, one

magnetic loop antenna, and two current probes. Each of the antennas and probes

are provided with calibrations when connected to a 50 ohm input receiver or

spectrum analyzer.

Each of the E-field antennas mount directly to the tripod azimuth and elevation

head. The azimuth and elevation head allows the operator to vary the antenna

azimuth (direction) and to change the antenna polarity (vertical or horizontal).

Cables and an adapter are provided to connect each antenna and probe to either

a BNC or N type connector on the receiver. Cable calibrations are supplied.

To obtain the field strength of the signal being measured, the operator must add

the receiver reading in dBuV, the antenna factor in dB, and the cable attenuation in

dB. This yields the field strength in dBuV/m. Calibrations for the E-field antennas

are supplied at appropriate spacings (1, 3, and 10 meter) to comply with various

specification requirements.

E-FIELD ANTENNAS

SAS-510-4 Log Periodic Antenna 290 MHz - 4000 MHz

The log periodic antenna comes assembled and ready to use.

Operation: Attach the antenna to the tripod azimuth and elevation head through

the screw hole in the antenna base. Connect a cable between the antenna

connector and the receiver. The log periodic beamwidth is 65 degrees and it

should be pointed or aimed in the direction that the received signal is coming from.

SAS-530,542 Broadband Dipole Antenna 160 MHz - 500 MHz

The broadband dipole antenna consists of the SAS-530,542 balun assembly and

two dipole (2" tubular) elements.

Operation: Attach the balun assembly to the tripod through the screw hole in

balun assembly base. Screw the two dipole elements into the 'tee' end of the balun

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