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Summary of Contents for ETS-Lindgren 3144
- Page 1 Model 3144 Log Periodic Dipole Array Antenna User Manual...
- Page 2 ETS-Lindgren L.P. Trademarks used in this document: The ETS-Lindgren logo is a trademark of ETS-Lindgren L.P. Revision Record MANUAL 3144 LOG PERIODIC ANTENNA | Part # 399171, Rev. E Revision Description Date A–C...
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Page 3: Table Of Contents
Model 3144 Antenna Factor ................ 23 Model 3144 Gain ..................23 Model 3144 VSWR ..................24 Model 3144 Half-Power Beamwidth ............24 Model 3144 Forward Power 1M ..............25 Model 3144 Forward Power 3M ..............25 Appendix A: Warranty ............. 27... - Page 4 This page intentionally left blank.
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Page 5: Notes, Cautions, And Warnings
Notes, Cautions, and Warnings Note: Denotes helpful information intended to provide tips for better use of the product. Caution: Denotes a hazard. Failure to follow instructions could result in minor personal injury and/or property damage. Included text gives proper procedures. Warning: Denotes a hazard. - Page 6 This page intentionally left blank.
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Page 7: Introduction
Model 3144, see Mounting & Assembly on page 15. Each Model 3144 is individually calibrated at one meter per SAE ARP 958 and at three and 10 meters per ANSI C63.5. Actual antenna factors and a signed... -
Page 8: Optional Items
Optional Items UPPORT Antenna mount with insert drilled to accept ETS-Lindgren or other tripods with standard 1/4–20 threads. RIPOD ETS-Lindgren offers the following non-metallic, non-reflective tripods for use at both indoor and outdoor EMC test sites. • 4-TR Tripod—Constructed of linen phenolic and delrin, designed with an adjustable center post for precise height adjustments. -
Page 9: Ets-Lindgren Product Information Bulletin
• 7-TR Tripod—Constructed of PVC and fiberglass components, providing increased stability for physically large antennas. The unique design allows for quick assembly, disassembly, and convenient storage. Allows several different configurations, including options for manual or pneumatic polarization. Quick height adjustment and locking wheels provide ease of use during testing. - Page 10 This page intentionally left blank.
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Page 11: Maintenance
Customer Service. Maintenance Recommendations If the Model 3144 Log Periodic Dipole Array Antenna is used outdoors, periodic removal of the antenna cable connection and cleaning of any corrosion may be needed to maintain accuracy of the measurements. An inspection to determine the need for cleaning should be made at least every six months. - Page 12 This page intentionally left blank.
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Page 13: Specifications
3.0 Specifications Electrical Specifications Frequency Range: 80 MHz–2 GHz Input Impedance: 50 Ohms VSWR: Average: 1.2:1 Maximum: 2.0:1 CW Power: 1000 W Symmetry: +/– 0.5 dB Connector: Type N Female Physical Specifications Height: 6.4 cm (2.5 in) Width: 213.4 cm (84.0 in) Depth: 167.6 cm (66.0 in) Weight:... - Page 14 This page intentionally left blank.
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Page 15: Mounting & Assembly
4.0 Mounting & Assembly The Model 3144 antennas are precision measurement devices. Handle your antenna with care. Mount the Model 3144 Log Periodic Dipole Array Antenna first, and then attach the elements to the antenna. Mounting Instructions SING NCLUDED OUNTING... - Page 16 To attach the included adapters to the Model 3144: If required, insert the 1/4–20 thread insert into the polarizing adapter. Remove the mounting knob from the mounting bracket on the antenna. Slide the polarizing adapter into the mounting bracket by placing the polarizing adapter placed between the shoulders of the mounting bracket.
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Page 17: Additional 4-Tr Mounting Options
Attach the polarizing adapter and antenna to tripod or tower, as required. 4-TR M DDITIONAL OUNTING PTIONS Following are additional options for mounting the Model 3144 onto an ETS-Lindgren 4-TR tripod. Contact the ETS-Lindgren Sales Department for information on ordering optional mounting hardware. -
Page 18: Additional 7-Tr And Mast Mounting Options
DDITIONAL OUNTING PTIONS Following are options for mounting the Model 3144 onto an ETS-Lindgren 7-TR Tripod or mast. Contact the ETS-Lindgren Sales Department for information on ordering optional mounting hardware. Mast refers to 2070 Series, 2075, and 2175 Antenna Towers. -
Page 19: Additional 2X2 Boom Mounting Options
DDITIONAL OUNTING PTIONS Following are additional options for mounting the Model 3144 onto a 2x2 boom. Contact the ETS-Lindgren Sales Department for information on ordering optional mounting hardware. 2x2 boom refers to a typical 2-inch by 2-inch boom. -
Page 20: Assembly Instructions
Assembly Instructions To facilitate transport, the Model 3144 is shipped with the five longest elements on each side removed. After you mount the antenna, follow these assembly steps: • Do not cross thread or permanent damage to the antenna and element could occur. -
Page 21: Application
(immunity) or receiver (emissions). Both horizontal and vertical polarizations are easily accomplished when the Model 3144 is mounted onto a tower or tripod. Due to the length of the low frequency elements, verify element clearance prior to switching the antenna to vertical polarization. - Page 22 For immunity testing, the electric field strength generated at a distance d can be approximated by: V / m = = distance, in meters G[dB]/10 = numeric gain (10 = antenna net input power, in watts An estimate of the power required for any field strength E can be obtained from Typical Data on page 23.
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Page 23: Typical Data
6.0 Typical Data Model 3144 Antenna Factor Model 3144 Gain... -
Page 24: Model 3144 Vswr
Model 3144 VSWR Model 3144 Half-Power Beamwidth... -
Page 25: Model 3144 Forward Power 1M
Model 3144 Forward Power 1M Model 3144 Forward Power 3M... - Page 26 This page intentionally left blank.
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Page 27: Appendix A: Warranty
Appendix A: Warranty See the Product Information Bulletin included with your shipment for the complete ETS-Lindgren warranty for your Model 3144. 3144 URATION OF ARRANTIES FOR ODEL All product warranties, except the warranty of title, and all remedies for warranty failures are limited to two years.
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