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Model 3127 

Resonant Loop Antenna 

User Manual 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for 3127 Series

Page 1: ...Model 3127 Resonant Loop Antenna User Manual ...

Page 2: ... under its patent rights or the rights of others Copyright 2004 2014 by ETS Lindgren Inc All Rights Reserved No part of this document may be copied by any means without written permission from ETS Lindgren Inc Trademarks used in this document The ETS Lindgren logo is a registered trademark of ETS Lindgren Inc Revision Record Model 3127 MANUAL Part 399277 Rev C Revision Description Date A Initial R...

Page 3: ...t Information Bulletin 8 2 0 Maintenance 9 Maintenance Recommendations 9 Annual Calibration 9 Replacement and Optional Parts 9 Upgrade Policies 10 Service Procedures 10 3 0 Specifications 11 Electrical Specifications 11 Physical Specifications 11 Physical Specifications 3127 5500 Only 12 4 0 Operation 13 Mounting 13 Operational Considerations 14 Appendix A Warranty 15 ...

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Page 5: ... Warning Denotes a hazard Failure to follow instructions could result in SEVERE personal injury and or property damage Included text gives proper procedures See the ETS Lindgren Product Information Bulletin for safety regulatory and other product marking information General Safety Considerations It has been determined through testing that the application of additional labels of any kind i e calibr...

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Page 7: ...test antennas All Model 3127 antennas are designed with better than 0 1 dB symmetry 0 2 dB peak to null in at least a 5 MHz band around the labeled center frequency VSWR is less than 5 1 at the resonant frequency which is slightly higher than the labeled symmetry frequency For reference purposes gain and symmetry values are provided for a 200 300 MHz band depending on model centered about the labe...

Page 8: ... antenna For example Model 3127 450 has a center frequency of 450 MHz This manual applies to the frequencies listed as well as any custom frequencies Standard Configuration Loop antenna A2LA accredited precision calibration and symmetry certification included signed certificate of calibration ETS Lindgren Product Information Bulletin See the ETS Lindgren Product Information Bulletin included with ...

Page 9: ...omer Service Maintenance Recommendations Use a clean soft cloth moistened with water should the Model 3127 require cleaning Do not use any harsh or abrasive chemicals to clean the loop antenna as they may damage the components Annual Calibration See the Product Information Bulletin included with your shipment for information on ETS Lindgren calibration services Replacement and Optional Parts Follo...

Page 10: ...re upgraded to enhance functionality Contact ETS Lindgren Customer Service for the upgrade status of your Field Probe Service Procedures For the steps to return a system or system component to ETS Lindgren for service see the Product Information Bulletin included with your shipment ...

Page 11: ...Impedance Nominal 50 Ohms Connector SMA The symmetry is guaranteed over a 10MHz span less than 1880 MHz above that frequency the symmetry is only guaranteed at the nominal frequency Physical Specifications Diameter A 1 9 cm 0 75 in Diameter B 12 7 cm 5 0 in Length 21 6 cm 8 5 in All units are the same size except for those units under 700 MHz ...

Page 12: ...12 Specifications www ets lindgren com Physical Specifications 3127 5500 Only Diameter A 1 9 cm 0 75 in Diameter B 6 4 cm 2 5 in Length 18 7 cm 7 38 in ...

Page 13: ...of the antenna and affect the accuracy of the measurement The mounting structure should have a low dielectric and a minimum amount of mass in the region of the antenna When mounting to an ETS Lindgren mounting kit the antenna mount consists of a Teflon sleeve with small clamp screws to hold the antenna in place Fixed length spacers are then attached to the mounting sleeve to position it at each te...

Page 14: ...tional considerations However should large standing wave effects be noticed it is recommended that a 3 to 10 dB pad attenuator be used at the input end of the antenna to minimize standing waves on the transmit cable The magnetic field of the antenna is polarized perpendicular to the antenna axis The specified symmetry is realized along the plane perpendicular to the antenna axis and centered at th...

Page 15: ... shipment for the complete ETS Lindgren warranty for your Model 3127 DURATION OF WARRANTIES FOR MODEL 3127 All product warranties except the warranty of title and all remedies for warranty failures are limited to two years Product Warranted Duration of Warranty Period Model 3127 Resonant Loop Antenna 2 Years ...

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