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A.H. Systems, inc.
Model SAS-571Double Ridge Guide Horn Antenna
Model: SAS-571
FEATURES:
¾ 700 MHz – 18 GHz
¾ Receive and Transmit
¾ Individually Calibrated
¾ Low VSWR
¾ FCC, MIL-STD, VDE and TEMPEST Testing
¾ Rugged Design
INTRODUCTION
Each antenna is lightweight,
compact, rugged and has been
manufactured to ensure maximum
gain, low VSWR and high power
handling capabilities. Whether
testing inside a shielded enclosure
or outdoors, this antenna will display
efficient performance characteristics
through the broad frequency range
of 700 MHz to 18 GHz.
INTENDED PURPOSES
This equipment is intended for
general laboratory use in a wide
variety of industrial and scientific
applications and is 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.
PROFESSIONAL APPLICATION
The A.H. Systems Double Ridge
Guide Horn Antenna is used by
EMC test labs as well as
Regulatory, military and security
authorities for a variety of
applications. For example, the
Double Ridge Guide Horn Antenna
is suitable for MIL-STD approval
tests on electronic devices as well
as general field strength
measurements.
RECOMMENDED ACCESSORIES
¾ ATU-510 Antenna Tripod Unit,
Wooden
¾ AEH-510 Azimuth and
Elevation Head
¾ PAM-0118 Preamplifier, 33 dB
Gain
¾ SAC-18G-3 3 Meter cable,
High-Frequency, Low-Loss
N(m) to N(m)
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A.H. Systems, inc.
TYPICAL DATA
The SAS-571 Double Ridge Guide Horn Antenna is supplied with an individual 1, 3 and
10 Meter horizontal calibration. Below is a set of typical antenna data for the SAS-571.
Model SAS-571Double Ridge Guide Horn Antenna
A.H. Systems Inc.
9710 Cozycroft Ave. Chatsworth, CA 91311
Phone (818) 998-0223 Fax (818) 998-6892
E-mail: sales@AHSystems.com
Web site: http://www.AHSystems.com
45
40
35
Antenna
Factor (dB/m)
30
25
20
15
10
Antenna Data
Double Ridge Guide
Horn Antenna
Model: SAS-571
Conversion of meter reading
to field strength:
dBuV/m = dBuV + AF + cable loss
1 Meter
3 Meter
10 Meter
Gain (dBi)
5
0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0
Frequency (GHz)
Page 3
A.H. Systems, inc.
Model SAS-571Double Ridge Guide Horn Antenna
9710 Cozycroft Ave. Chatsworth, CA 91311
Phone (818) 998-0223 Fax (818) 998-6892
E-mail: sales@A.H.Systems.com
Web site: http://www.AHSystems.com
50
45
40
35
30
Attenuation
(dB)
25
20
15
10
5
0
0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0
A.H. Systems Inc.
9710 Cozycroft Ave. Chatsworth, CA 91311
Phone (818) 998-0223 Fax (818) 998-6892
E-mail: Info@A.H.Systems.com
A.H. Systems Inc.
80
Web site: http://www.AHSystems.com
Cross Polarization
Model: SAS-571
Frequency (GHz)
Half Power Beamwidth
Model: SAS-571
70
60
50
40
30
20
10
0
024681012141618
Frequency (GHz)
Horizontal
Vertical
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A.H. Systems, inc.
SPECIFICATIONS
The SAS-571 Double Ridge Guide Horn Antenna Specifications:
Model SAS-571Double Ridge Guide Horn Antenna
Frequency Range ............................................................................ 700 MHz - 18 GHz
Antenna Factor (dB/m) ..........................................................................................22-45
Gain (dBi) .............................................................................................................12 dBi
Maximum Continuous Power .........................................................................300 Watts
Maximum Radiated Field...................................................................................200 V/m
Impedance.............................................................................................................. 50 Ω
VSWR (average) .................................................................................................... 1.6:1
RF Connector ..........................................................................................Type N female
Mounting base .........................................................................................1/4"-20 female
Weight .................................................................................................3.5 lbs. / 1.59 kg
Size (W x H x D) .................................................................................5.6" x 9.6" x 11.0"
........................................................................
14.2cm x 24.4cm x 27.9cm
APPLICATIONS
The model PAM-0118 is
supplied with an external power
supply that can be used on
110/120/220/240 VAC, 50/60
Hz, and supplies 15.0 VDC at
180 mA. The power supply has
a standard AC input connector
and uses a 2.5mm coax output
connector. An optional battery
source may be used for this unit.
GENERAL USE INSTRUCTIONS
The double ridge guide horn
antenna comes assembled and
ready to use. The antenna
mounting bracket is attached to
the antenna backwards for
packing purposes. 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.)
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.
MAINTENANCE
Annual recalibration is
recommended to ensure reliable
and repeatable performance.
A.H. Systems experienced
technicians can recalibrate
almost any type or brand of
antenna.
For more information about our
calibration services or to place
an order for antenna calibration
visit our website at
http://www.AHSystems.com or
call 1(818) 998-0223.
Ask about our
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