A.H. Systems SAS-585 Operation Manual

Standard gain horn

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A.H. Systems SAS-585 Standard Gain Horn Antenna

SAS-585

Standard Gain Horn

Operation Manual

REV A

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Page 1 A.H. Systems SAS-585 Standard Gain Horn Antenna SAS-585 Standard Gain Horn Operation Manual © A.H. Systems inc. – June 2014 REV A...
Page 2: Table Of Contents
A.H. Systems SAS-585 Standard Gain Horn Antenna TABLE OF CONTENTS INTRODUCTION Introduction ........................ 3 Intended Purposes ...................... 4 Optional Equipment ....................5 OPERATING INSTRUCTIONS Assembly Instructions ....................6 Mounting Instructions ....................6 Operating Instructions ....................6 SPECIFICATIONS Specifications ......................8 Typical Data ........................
Page 3: Introduction
A.H. Systems SAS-585 Standard Gain Horn Antenna INTRODUCTION The SAS-585 Standard Gain Horn Antenna is designed specifically for utilization in emissions and immunity testing over the frequency range of 8.2 GHz to 12.4 GHz. X-band This horn antenna is linearly polarized and has medium gain, low VSWR, and a constant antenna factor.
Page 4: Intended Purposes
A.H. Systems SAS-585 Standard Gain Horn Antenna INTENDED PURPOSES The standard gain horn antenna is intended for general laboratory use in a wide variety of industrial and scientific applications. It has been designed to be used in the process of generating, controlling and measuring high levels of electromagnetic Radio Frequency (RF) energy.
Page 5: Optional Equipment
A.H. Systems SAS-585 Standard Gain Horn Antenna OPTIONAL EQUIPMENT The following is a recommend accessory list for the SAS-585 Standard Gain Horn Antenna: CONNECTING ACCESSORIES: PAM-0118 This preamplifier has a broad frequency range and high gain, designed to match the double ridge guide horn antenna. An ideal solution for improving overall system sensitivity.
Page 6: Assembly Instructions
A.H. Systems SAS-585 Standard Gain Horn Antenna OPERATING INSTRUCTIONS ASSEMBLY INSTRUCTIONS There is no assembly required, the SAS-585 Horn antenna is supplied with an attached waveguide to coax adapter and tripod mount. MOUNTING INSTRUCTIONS The antenna should be firmly mounted to a tripod with a 1/4-20 male stud.
Page 7 A.H. Systems SAS-585 Standard Gain Horn Antenna OPERATING INSTRUCTIONS Once the antenna is mounted to a mast or tripod, connect a N-type coaxial cable from the horn antenna to a receiver or RF generator. The cable should be matched to 50 ohms, and it is recommended to use a high-frequency low-loss cable (i.e., SAC-18G-3 Low Loss cable).
Page 8: Specifications
A.H. Systems SAS-585 Standard Gain Horn Antenna SPECIFICATIONS The SAS-585 Horn Antenna specifications: ELECTRICAL Frequency Range ..............8.2 GHz – 12.4 GHz Antenna Factor ..................34.6 dB/m Average Gain ....................15.6 dBi Maximum Continuous Power ..............250 Watts Maximum Radiated Field: ................500 V/m Average Beamwidth (E-Field) ................
Page 9: Typical Data
A.H. Systems SAS-585 Standard Gain Horn Antenna TYPICAL DATA © A.H. Systems inc. – June 2014 REV A...
Page 10: Calculations
CALCULATIONS EMISSIONS TESTING Individual calibration data for the SAS-585 horn antenna is supplied at a 1-meter separation distance. For emissions measurements, add the antenna factor plus cable loss to receiver reading in dBV to convert to field strength in dBV/meter.
Page 11 A.H. Systems SAS-585 Standard Gain Horn Antenna TYPICAL CONVERSION FORMULAS LOG -> LINEAR VOLTAGE FIELD STRENGTH & POWER DENSITY ((dB  V – 120) / 20) (((dB  V/m) -120) / 20) dBV to Volts V = 10 dBV/m to V/m V/m = 10 Volts to dBV...
Page 12: Maintenance
At least once a month it is a good idea to wipe down the antenna with a damp rag. ANNUAL CALIBRATION To ensure reliable and repeatable long-term performance, annual re-calibration of your antennas, preamplifiers and current probes by A.H. Systems experienced technicians is recommended. Our staff can calibrate almost any type or brand of antenna.
Page 13: Warranty
A.H. Systems SAS-585 Standard Gain Horn Antenna WARRANTY INFORMATION A.H. Systems Inc., warrants that our Antennas, Sensors and Probes will be free from defects in materials and workmanship for a period of three (3) years. All other products delivered under contract will be warranted for a period of two (2) years. Damage caused by excessive signals at the product's input is not covered under the warranty.