A.H. Systems AK-18G Manuel d'utilisation - Page 6
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A.H. Systems AK-18G Antenna Kit
SAS-542 Biconical Antenna 20 MHz - 330 MHz
The biconical antenna consists of the SAS-530,542 balun assembly and two
folding biconical elements.
Operation: Attach the balun assembly to the tripod thru the screw hole in the
balun assembly base. Screw the two biconical elements into the 'tee' end of the
balun assembly. Open the antenna elements completely and secure in open
position by tightening the knurled knobs in the element caps. Connect a cable
between the antenna connector and the receiver. The biconical beam pattern is
similar to a dipole response.
SAS-550-1B Active Monopole Antenna 10kHz - 60 MHz
The active monopole antenna consists of a ground plane upon which are mounted
a preamplifier with internal rechargeable battery pack for battery operation, and a
telescoping rod antenna.
Operation: Mount the antenna on the tripod. Connect an external ground to the
ground plane if called out in test specification. Attach the telescoping rod to the
connector on the amplifier top and extend fully. Connect the output on amplifier
side to the receiver using a cable. Apply power to antenna (turn battery power 'on'.
The active monopole antenna is omni-directional.
SAS-571 Double Ridge Guide Horn Antenna 700MHz - 18 GHz
The horn antenna comes assembled and ready to use. The antenna mounting
bracket is attached to the antenna backwards in order to fit in the carrying case.
The bracket must be removed from the antenna, turned over (so that the bracket
leg faces away from the antenna), and re-attached to the antenna. (The bracket is
not needed for mounting if the tripod being used has an Azimuth/Elevation Head.)
Operation: Attach the antenna to the tripod azimuth and elevation head through
the hole on the antenna bottom or the hole in the mounting bracket. The ridge
guides determine the antenna polarity: for horizontal polarity they should be
parallel to the ground, for vertical polarity they should be perpendicular to the
ground. Connect a cable between the antenna connector and the receiver. NOTE:
BE SURE TO USE A CABLE RATED FOR HIGH FREQUENCY WHEN
OPERATING ABOVE 5 GHz (for example, the SAC-18G-3).
MAGNETIC LOOP ANTENNA
SAS-560 Magnetic Loop Antenna 20 Hz - 2 MHz
The loop antenna does not require any assembly.
Operation: The loop antenna is designed to be held by hand and moved around
each surface if the EUT to measure magnetic radiation. Connect the antenna via a
cable to a receiver with either a 50 ohm input or high impedance (10 K ohm or
greater) input. Calibrations for both inputs are provided.
© A.H. Systems inc. – May 2014
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