ETS-Lindgren BiConiLog 3142C, User Manual

Page 1: ...Model 3142C BiConiLog Antenna User Manual Archived 01 19 11 ...

Page 2: ...g are trademarks of ETS Lindgren L P Revision Record MANUAL MODEL 3142 Part 399229 Rev E Revision Description Date A Initial Release November 2000 B Update to new format add Model 3141 information January 2001 C Edit update February 2003 D Edit update June 2003 E Update bowtie antenna knob information November 2006 Internet Address http www ETS Lindgren com USA 1301 Arrow Point Drive Cedar Park TX...

Page 3: ...ptional End Plates 19 6 1 Model 3142C Typical 26 3000 MHz VSWR 19 6 2 Model 3142C Typical 26 3000 MHz Antenna Factor 19 6 3 Model 3142C Typical 26 3000 MHz Gain 20 7 0 Typical Data with Optional End Plates 21 7 1 Model 3142C Typical 26 3000 VSWR 21 7 2 Model 3142C Typical 26 3000 MHz Antenna Factor 22 7 3 Model 3142C Typical 26 3000 MHz 1M Forward Power 23 7 4 Model 3142C Typical 26 3000 MHz 3M Fo...

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Page 5: ...ons Safety Symbol Definition WARRANTY BEFORE SERVICING CONTACT ETS LINDGREN 1 512 531 6400 Servicing or modifying the unit without ETS Lindgren authorization may void your warranty If an attempt to service the unit must be made disconnect all electrical power prior to beginning Voltages exist at many points within the instrument that could if contacted cause personal injury Only trained service pe...

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Page 7: ...n that acts as a common mode choke to keep unbalanced current off the coaxial feed cable outer shield Though the Model 3142C is highly balanced in vertically polarized measurements cable position can effect results so it is recommended that the cable be suspended horizontally back from the antenna at least one meter before any vertical drop The antenna has a mounting bracket and 20 UNC thread knob...

Page 8: ... single wire dipole The T end plate option has its first resonance at a frequency where its length is about 0 22 λ a regular bow tie at a length of 0 3 λ and a tuned dipole at about a length of 0 48 λ Thus at 50 MHz the 1 4 meter long end plate option behaves as if a 2 8 meter tuned dipole Cross polar radiation is minimized because current flow on one of the T end frames is almost completely cance...

Page 9: ...d with the contents and condition of your order prior to placing the product into service 2 2 Return Procedures To return a system or system component Step 1 Contact ETS Lindgren Customer Service to obtain an SRO Service Request Order Step 2 Briefly describe the problem in writing Give details regarding the observed symptom s or error codes and whether the problem is constant or intermittent in na...

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Page 11: ...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 visit our website at http www ETS Lindgren com Maintenance 11 Archived 01 19 11 ...

Page 12: ...12 Maintenance This page intentionally left blank Archived 01 19 11 ...

Page 13: ...ements The optional end plate package consists of 2 T bow tie endplates 8 Thumbscrew knobs to attach endplates to bow tie elements 4 2 Mount the Bow tie Elements 1 Without the bow tie elements attached mount the Model 3142C on a tripod or tower adapter 2 Slide the narrow end of one of the bow tie elements into the receptacle hole on the boom and then align the bow tie with the receptacle on the bo...

Page 14: ...llips head screwdriver to carefully remove the four screws in each of the bow tie end caps The end caps should be reinstalled when you are done using the optional end plates so store the end caps and the screws in a safe place 2 Align the four holes on the wide end of the bow tie element with the four holes on the end plate Insert each of the four small knobs in the receptacle holes and slowly tig...

Page 15: ...rtically Both horizontal and vertical polarization is easily accomplished when the Model 3142C with the optional end plates is mounted on a tower but vertical polarization on a tripod requires special consideration Because immunity power requirements are many dB lower for vertical polarization the T end frames can be removed when mounting vertically on a standard tripod A special tripod is availab...

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Page 17: ...any field strength E can be obtained from Model 3142C Typical 1 V m Power Required on page Error Bookmark not defined Error Bookmark not defined Error Bookmark not defined which shows power required in watts to generate 1 V m Power shown is calculated from the measured gain and corrected for VSWR For any other field strength multiply the power in watts by desired E field squared or P E V m E2 P 1 ...

Page 18: ...roximated by the formula E Pg d V m 30 d distance in meters g numeric gain 10G dB 10 P antenna net input power in watts An estimate of the power required for any field strength E can be obtained from Model 3142C Typical 26 3000 MHz 1M Forward Power on page 23 or Model 3142C Typical 26 3000 MHz 3M Forward Power on page 24 which shows power required in watts to generate 1 V m For any other field str...

Page 19: ...and 10 meter calibrations is measured from the antenna midpoint and for SAE 1 meter calibrations the distance is measured from the antenna tip Midpoint is defined as half the distance between the small elements and the bow ties which is about 45 cm from the small end tip 20 100 1000 3000 5 10 15 20 25 30 35 40 45 10m 3m 1m dB 1 m Frequency MHZ Typical Data Without Optional End Plates 19 Archived 0...

Page 20: ... Typical 26 3000 MHz Gain This data is derived from the 3 antenna method antenna factors 20 100 1000 3000 25 20 15 10 5 0 5 10 10m 3m 1m Frequency M z H dB 20 Typical Data Without Optional End Plates Archived 01 19 11 ...

Page 21: ...e power required typically less power is required for vertical polarization In practice many users place ferrite tiles on the ground between the antenna and probe to reduce reflected ray interference For any other field strength E multiply the power in watts for 1 V m by E2 7 1 Model 3142C Typical 26 3000 VSWR 100 1000 1 10 3000 20 Frequency MHz Typical Data with Optional End Plates 21 Archived 01...

Page 22: ...t and for SAE 1 meter calibrations the distance is measured from the antenna tip Midpoint is defined as half the distance between the small elements and the bow ties which is about 45 cm from the small end tip 20 100 1000 3000 5 10 15 20 25 30 35 40 45 10m 3m 1m Frequency M z H dB 1 m 22 Typical Data with Optional End Plates Archived 01 19 11 ...

Page 23: ...lustrates the typical 26 3000 MHz forward power required for 1 3 and 10 V m at 1 meter from the tip of the antenna 100 1000 0 01 0 1 1 10 100 1000 3000 20 1 V m 80 AM 3 V m 80 AM 10 V m 80 AM Watts Frequency MHz Typical Data with Optional End Plates 23 Archived 01 19 11 ...

Page 24: ... illustrates the typical 26 3000 MHz forward power required for 1 3 and 10 V m at 3 meters from the antenna tip 100 1000 0 01 0 1 1 10 100 1000 3000 20 1 V m 80 AM 3 V m 80 AM 10 V m 80 AM Watts Frequency MHz 24 Typical Data with Optional End Plates Archived 01 19 11 ...

Page 25: ...1kW600 MHz 1GHz750W1 GHz 3 GHz500 W 26 MHz 60 MHz500 W60 MHz 600 MHz1kW600 MHz 1GHz750W1 GHz 3 GHz500 W Symmetry 0 5 dB 0 5 dB Connector N female N female 8 2 Physical Specifications With Standard Bow tie Elements With Optional End Plates Height bow tie 75 cm 29 5 in 75 cm 29 5 in Width bow tie 135 cm 53 1 in 136 cm 53 5 in Depth boom length 90 cm 35 4 in 132 cm 51 9 in Weight 4 kg 8 8 lb 6 8 kg 1...

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Page 27: ...ty period shall commence on the date the product is delivered to Buyer however if Seller assembles the product or provides technical direction of such assembly the warranty period for such product shall commence on the date the assembly of the product is complete Notwithstanding the foregoing in the event that the assembly is delayed for a total of thirty 30 days or more from the date of delivery ...

Page 28: ...r riot or any other causes beyond the reasonable control of Seller This warranty does not cover 1 contact fingers or replacements unless loss is caused by a defect in material or manufacturing workmanship within the scope of this warranty 2 items designed to be consumable and 3 removal and reconstruction of walls partitions ceilings and other facility costs arising from repair or replacement of th...

Page 29: ...EGLIGENCE ON BEHALF OF THE SELLER IN NO EVENT SHALL SELLER S LIABILITIES UNDER ANY CLAIM MADE BY BUYER EXCEED THE PURCHASE PRICE OF THE PRODUCT IN RESPECT OF WHICH DAMAGES ARE CLAIMED This agreement shall be construed in accordance with laws of the State of Illinois In the event that any provision hereof shall violate any applicable statute ordinance or rule of law such provision shall be ineffect...