Model 6502 Active Loop Antenna MANUAL © EMC TEST SYSTEMS, L.P.
MODEL 6502 ACTIVE LOOP ANTENNA EMC Test Systems, L.P. reserves the right to make changes to any products herein to improve functioning, design, or for any other reason. Nothing contained herein shall constitute EMC Test Systems, L.P. assuming any liability whatsoever arising out of the application or use of any product or circuit described herein. EMC Test Systems, L.P. does not convey any license under its patent rights or the rights of others. © Copyright 2002 by EMC Test Systems, L.P.
MODEL 6502 ACTIVE LOOP ANTENNA Table of Contents INTRODUCTION.................................................................................................................................. 1 STANDARD CONFIGURATION ......................................................................................................... 2 OPTIONS ............................................................................................................................................... 2 MOUNTING........................
MODEL 6502 ACTIVE LOOP ANTENNA © EMC TEST SYSTEMS, L.P.
MODEL 6502 ACTIVE LOOP ANTENNA Introduction INTRODUCTION The ETS-Lindgren Model 6502 is an Active Receiving Loop Antenna with a frequency range of 10 kHz to 30 MHz. This antenna is specifically designed to perform commercial emissions standards testing. The Model 6502 can be used for any magnetic testing, particularly MIL-STD 461B. A radio frequency preamplifier is built into the base of this loop antenna and provides a 50 ohm output which is used by a receiver.
Standard Configuration MODEL 6502 ACTIVE LOOP ANTENNA STANDARD CONFIGURATION • • Antenna assembly Mounting bracket designed to accept an ETS-Lindgren or other tripod mount with standard ¼ in x 20 threads • Battery Charger • Individually calibrated per IEEE STD 291. Actual individual calibration factors and signed Certificate of Calibration Conformance are included.
MODEL 6502 ACTIVE LOOP ANTENNA Mounting MOUNTING The Model 6502 is fitted with a mounting bracket threaded to accept a tripod mount with standard 1/4 “ x 20 threads. To mount the loop antenna, thread a ¼” x 20 mounting knob or fixture into the base of the mounting bracket. Take care not to cross thread this connection as permanent damage to the antenna mount could occur.
Typical Data MODEL 6502 ACTIVE LOOP ANTENNA TYPICAL DATA 4 © EMC TEST SYSTEMS, L.P.
MODEL 6502 ACTIVE LOOP ANTENNA Calibration CALIBRATION The IEEE 291-1991 Induction-Field Method of Calibration is used on the Model 6502. By using relatively close spacing between the transmitter and the receiver at frequencies below 30 MHz, the use of free space magnetic induction field from a transmitting loop antenna is most suitable. This method yields almost no reflection from the ground or nearby objects.
Battery Charger MODEL 6502 ACTIVE LOOP ANTENNA automatically by the charger. The front panel indicator marched “Fast Charge” lights when the battery charger is in the fast charge mode. When the “Power On” light is illuminated and the “Fast Charge” light is extinguished, the batter charger is in the trickle charge mode. The antenna should be connected to the battery charger in “Trickle Charge” mode when not in use. Charging time is approximately eight hours when batteries are completely discharged.
MODEL 6502 ACTIVE LOOP ANTENNA Battery Charger There are two LED’s on the body of the separate battery charger. The “Power On” LED illuminates when the charger is plugged into an AC outlet. (115/230 VAC user selectable). The “Fast Charge” LED illuminates when the battery is charging and turns off when the battery is fully charged. Once the battery charger has completed the “Fast Charge” cycle, the charger will automatically switch to “Trickle Charge” mode.
Specifications MODEL 6502 ACTIVE LOOP ANTENNA SPECIFICATIONS ELECTRICAL Frequency Range Dynamic Range Sensitivity (Typical) 1 dB Compression Point Power Required Impedance (Nominal) Connector 10 kHz - 30 MHz 85 dB @ 10 kHz 125 dB @ 1 MHz -1 dB (uA/m) @ 10 kHz -42 dB (uA/m) @ 1 MHz 5 V/m 13.8 VDC 50 ohms BNC female PHYSICAL Base Width Base Depth Height Loop Diameter Weight 8 19.0 cm 7.5 in 12.0 cm 4.7 in 67.3 cm 26.5 in 60.0 cm 23.6 in 2.0 kg 4.5 lb © EMC TEST SYSTEMS, L.P.
MODEL 6502 ACTIVE LOOP ANTENNA Maintenance MAINTENANCE To ensure reliable and repeatable long-term performance, annual recalibration of your antennas by ETS-Lindgren’s experienced technicians is recommended. Our staff can recalibrate almost any type or brand of antenna. Please call to receive a service order number prior to sending an antenna to us for calibration. For more information about our calibration services or to place an order for antenna calibration visit our calibration website at http://www.
Warranty MODEL 6502 ACTIVE LOOP ANTENNA WARRANTY EMC Test Systems, L.P., hereinafter referred to as the Seller, warrants that standard EMCO products are free from defect in materials and workmanship for a period of two (2) years from date of shipment.
MODEL 6502 ACTIVE LOOP ANTENNA European Community Declaration of Conformity EUROPEAN COMMUNITY DECLARATION OF CONFORMITY The EC Declaration of Conformity is the method by which EMC Test Systems, L.P. declares that the equipment listed on this document complies with the EMC and Low-voltage Directives. Factory: EMC Test Systems, L.P. P.O. Box 80589 Austin, Texas USA 78708-0589 Issued by: EMC Test Systems, L.P. P.O.
