Related Manuals for A.H. Systems AK-285R
Summary of Contents for A.H. Systems AK-285R
- Page 1 ® Advanced Test Equipment Rentals www.atecorp.com 800-404-ATEC (2832) A.H. Systems AK-285R Shielding Effectiveness Antenna Kit AK-285R Shielding Effectiveness Antenna Kit Operation Manual © A.H. Systems inc. – August 2011 REV A...
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Page 2: Table Of Contents
A.H. Systems AK-285R Shielding Effectiveness Antenna Kit TABLE OF CONTENTS WARRANTY INTRODUCTION GENERAL INFORMATION EQUIPMENT AND OPERATION DYNAMIC RANGE ANTENNA FORMULAS CONVERSION FORMULAS MAINTENANCE © A.H. Systems inc. – August 2011 REV A... -
Page 3: Warranty
(3) years. All other products delivered under contract will be warranted for a period of two (2) years. A.H. Systems' obligation under this warranty shall be limited to repairing or replacing, F.O.B. -
Page 4: Introduction
A.H. Systems AK-285R Shielding Effectiveness Antenna Kit INTRODUCTION Shown with optional preamplifiers ANTENNA KIT CONTENTS Frequency Model Number Range Description SAS-510-2 290 MHz – 2000 MHz Log Periodic SAS-544F 20 MHz – 330 MHz Biconical, Folding EHA-51B 9 KHz – 60 MHz... -
Page 5: General Information
GENERAL DESCRIPTION The A.H. Systems AK-285R and AK-285T antenna kits includes all of the required antennas needed to perform shielding effectiveness. Each component has a specific storage compartment in the carrying case therefore, loss and breakage are virtually eliminated. -
Page 6: Equipment And Operation
A.H. Systems AK-285R Shielding Effectiveness Antenna Kit SAS-510-2 Log Periodic Antenna 290 MHz – 2 GHz This directional Log Periodic Antenna is an ideal solution for radiated emissions and normalized site attenuation. Frequency Range: 290 MHz - 2000 MHz Antenna Factor: 14 - 32 dB Gain: 6.5 dBi... - Page 7 Folding Biconical elements can be closed similar to an umbrella allowing the antenna to be contained in an optional transit storage case. Whether testing in a shielded enclosure, or outdoors, the rugged construction of the A.H. Systems Biconical antenna will ensure long life, and reliable performance.
- Page 8 A.H. Systems AK-285R Shielding Effectiveness Antenna Kit EHA-51B Battery Operated Active Monopole and 12" Loop Antenna 1 KHz - 60 MHz A.H. Systems EHA-51B Antenna is an active, general-purpose, receive-only monopole and loop antenna for electric and magnetic field testing.
- Page 9 A.H. Systems AK-285R Shielding Effectiveness Antenna Kit SAS-571 Double Ridge Guide Horn Antenna 700 MHz – 18 GHz High gain, low VSWR, input handling capability up to 300 watts CW, and rugged design make this horn antenna excellent for both immunity and emissions testing.
- Page 10 The case is constructed of lightweight and durable polyethylene. Two case keys are provided with the case. OPTIONAL EQUIPMENT The AK-285R case comes with three additional cutouts for optional preamplifiers. In order to improve overall system sensitivity, the following equipment will be required: •...
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Page 11: Dynamic Range
A.H. Systems AK-285R Shielding Effectiveness Antenna Kit AK-285R and AK-285T Dynamic Range Calculations Here is a sample calculation of the required dynamic range at a 1 meter separation. Both the monopole and loop antennas have one passive and one active antenna. The use of preamplifiers with the active antennas is not recommended. - Page 12 A.H. Systems AK-285R Shielding Effectiveness Antenna Kit 0 dB Sig Dynamic Dynamic Xmtr Range 1 Watt Range with Noise Level S + N Dynamic Preamp with Power 1W Power (10 Hz RB) Vt-Vr Margin Range Gain Preamp DRG Horns 1 GHz -134 18.8...
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Page 13: Antenna Formulas
A.H. Systems AK-285R Shielding Effectiveness Antenna Kit ANTENNA FORMULAS AND CALCULATIONS E-FIELD ANTENNAS Add antenna factor plus cable loss to receiver reading in dBuV to convert to field strength in dBuV/meter. Field Strength(dBuV/m) = SA(dBuV) + AF(dB) + cable loss (dB) -
Page 14: Conversion Formulas
A.H. Systems AK-285R Shielding Effectiveness Antenna Kit TYPICAL CONVERSION FORMULAS LOG -> LINEAR VOLTAGE FIELD STRENGTH & POWER DENSITY ((dB µ V – 120) / 20) (((dB µ V/m) -120) / 20) dBµV to Volts V = 10 dBµV/m to V/m V/m = 10 Volts to dBµV... -
Page 15: Maintenance
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. It is always up to the user to determine the appropriate interval for calibration certification based on the requirements of the end users specific test/application.
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