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Mounting Instructions 

 

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21

 

5.0   Mounting Instructions 

 

Before connecting any components, follow the 

safety information in the ETS-Lindgren 

Product Information Bulletin included with your 

shipment. 

 

The Model 3142D is a precision measurement 

device. Handle with care. 

Contact with any metal or non-metallic structure can capacitively load the 
antenna, which may cause unrepeatable results. Therefore, make sure that no 
part of the dipole elements or bow ties is in contact with the tripod or tower, 
particularly in vertically-polarized tests. Where possible, run the feed cable 
straight one meter or more back from the Model 3142D BiConiLog™ Antenna 
before dropping vertically. 

Both horizontal and vertical polarization is easily accomplished when the 
Model 3142D with the optional end plates is mounted onto a tower, but vertical 
polarization on a tripod requires special consideration. Because immunity power 
requirements are many dB lower for vertical polarization, the optional end plates 
can be removed when mounting vertically on a standard tripod. A special tripod is 
available from ETS-Lindgren for vertical polarization with optional end plates 
intact. Please contact ETS-Lindgren for the recommended mounting scheme. 

Summary of Contents for BiConiLog 3142D

Page 1: ...Model 3142D BiConiLog Antenna User Manual ...

Page 2: ...sing out of the application or use of any product or circuit described herein ETS Lindgren L P does not convey any license under its patent rights or the rights of others Copyright 2000 2009 by ETS Lindgren L P All Rights Reserved No part of this document may be copied by any means without written permission from ETS Lindgren L P Trademarks used in this document The ETS Lindgren logo BiConiLog and...

Page 3: ...t update June 2003 E Update bowtie antenna knob information November 2006 F Updated content to Model 3142D rebrand December 2008 G Updated Specifications updated Additional Mounting Options illustrations May 2009 H Added part numbers for optional end plate kit October 2009 I Added Typical Gain With and Without End Plates to Typical Data updated Using the Stinger to Mount to a Model 2175 MiniMast D...

Page 4: ...iv This page intentionally left blank ...

Page 5: ...embly Instructions 17 Attach Bow Tie Elements 18 Attach Optional End Plates 19 5 0 Mounting Instructions 21 Using Included Mounting Adapters 22 Using the Stinger to Mount to a Model 2175 MiniMast 24 Additional Mounting Options 29 4 TR Mounting Options 29 7 TR and Mast Mounting Options 30 2x2 Boom Mounting Options 33 6 0 Application 35 Without Optional End Plates 35 With Optional End Plates 36 7 0 ...

Page 6: ...vi This page intentionally left blank ...

Page 7: ...ctions could result in minor personal injury and or property damage Included text gives proper procedures 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 ...

Page 8: ...viii This page intentionally left blank ...

Page 9: ...ions testing immunity measurements and medical equipment testing The Model 3142D includes a stinger mount it also includes a mounting bracket and 1 4 20 thread knob to attach to an ETS Lindgren tripod or tower adapter For the variety of mounting options available for the Model 3142D see Mounting Instructions on page 21 Optional End Plates Optional end plates are available to improve gain for immun...

Page 10: ...decreases resonant frequency and increases efficiency in the 20 MHz to 60 MHz range Similarly the regular bow tie has a lower resonant frequency than an equal length single wire dipole The optional end plate 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 meters long...

Page 11: ... manual or pneumatic polarization Quick height adjustment and locking wheels provide ease of use during testing Maximum height is 2 17 m 85 8 in with a minimum height of 0 8 m 31 8 in This tripod can support a 13 5 kg 30 lb load Model 4 TR Constructed of linen phenolic and delrin designed with an adjustable center post for precise height adjustments Maximum height is 2 0 m 80 0 in and minimum heig...

Page 12: ...uct Information Bulletin included with your shipment for the following Warranty information Safety regulatory and other product marking information Steps to receive your shipment Steps to return a component for service ETS Lindgren calibration service ETS Lindgren contact information ...

Page 13: ...uded with your shipment Maintenance of the Model 3142D is limited to external components such as cables or connectors If you have any questions concerning maintenance contact ETS Lindgren Customer Service Annual Calibration See the Product Information Bulletin included with your shipment for information on ETS Lindgren calibration services WARRANTY ...

Page 14: ...g Mounting Adapter 100989 Thread Insert 105861B Optional End Plate Kit includes 113031 End Plate 1 106364 Thumbscrew M4x12 4 113032 2 each required For additional optional mounting hardware see Additional Mounting Options on page 24 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 15: ...Range 26 MHz 6 GHz Input Impedance Nominal 50 Ω VSWR Average 2 1 above 50 MHz Maximum Continuous Power 1 kW Peak Power 1 3 kW Pattern Type Directional Polarization Linear Connector Type N female Physical Specifications Height 76 2 cm 30 0 in Length 166 1 cm 65 39 in Width 133 0 cm 52 72 in Weight Without End Plates 7 7 kg 17 0 lb ...

Page 16: ...16 Specifications This page intentionally left blank ...

Page 17: ... The Model 3142D BiConiLog Antenna consists of the following Antenna Bow tie elements 2 10 32 thumbscrew knobs to attach bow tie elements 2 Mounting bracket and mounting knob Protective end caps for bow tie elements 2 Screws to attach protective end caps to bow tie elements 8 The optional end plate package consists of End plates 2 Thumbscrew knobs to attach end plates to bow tie elements 8 ...

Page 18: ...narrow end of one of the bow tie elements into the receptacle hole on the antenna boom and then align the bow tie with the receptacle on the boom Do not cross thread this connection or permanent damage to the bow tie element could occur 3 Insert one of the 10 32 thumbscrew knobs into the opposite side of the antenna boom from where you inserted the bow tie Slowly tighten the knob taking care not t...

Page 19: ... reinstalled when you are done using the optional end plates so store the end caps and the screws in a safe place Do not cross thread this connection or permanent damage to the bow tie element could occur 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 thumbscrew knobs in the holes and slowly tighten taking care not to cros...

Page 20: ...20 Assembly Instructions This page intentionally left blank ...

Page 21: ... vertically polarized tests Where possible run the feed cable straight one meter or more back from the Model 3142D BiConiLog Antenna before dropping vertically Both horizontal and vertical polarization is easily accomplished when the Model 3142D with the optional end plates is mounted onto a tower but vertical polarization on a tripod requires special consideration Because immunity power requireme...

Page 22: ...el 3142D ships with these mounting adapters 100989 Polarizing Mounting Adapter with 7 8 14 thread receptacle If you need to convert the polarizing adapter to a 1 4 20 receptacle insert the 1 4 20 thread insert into the polarizing adapter 105861B 1 4 20 Thread Insert ...

Page 23: ...ounting bracket on the antenna 3 Slide the mounting bracket onto the polarizing adapter with the polarizing adapter placed between the shoulders of the mounting bracket 4 Thread the mounting knob through the mounting bracket then through the polarizing adapter and finally through the hex nut 5 Tighten the mounting knob to secure the antenna Do not cross thread or permanent damage to the adapter an...

Page 24: ...the antenna directly to an ETS Lindgren 7 TR Tripod or mast Before you begin Install the center rotate boom part 108197 for rear mount stinger type antennas onto the 7 TR Attach the included mounting adapter to the Model 3142D as instructed in Using Included Mounting Adapters on page 22 You will need one of the optional mounting knobs described in 7 TR and Mast Mounting Options on page 30 To order...

Page 25: ... the center of the boom so that the antenna connector emerges a few inches out of the clamp end of the boom 2 Attach the cable to the Type N connector at the end of the stinger 3 Slide the cable and stinger into the clamp on the boom carefully guiding the cable out the other end ...

Page 26: ... balun box align it with the boom receptacle and then slide the smaller portion of the balun box into the boom This will prevent rotation of the antenna unless the boom is being polarized 5 Tighten the clamp knobs on the boom to secure the antenna into place ...

Page 27: ...Mounting Instructions 27 6 Secure the antenna by inserting the antenna mount knob through the boom and into the mounting adapter ...

Page 28: ...28 Mounting Instructions Model 3142D mounted horizontally on Model 2175 Model 3142D rotated vertically on Model 2175 ...

Page 29: ...nal Mounting Options 4 TR MOUNTING OPTIONS Following are additional options for mounting the Model 3142D onto an ETS Lindgren 4 TR tripod Contact the ETS Lindgren Sales Department for information on ordering optional mounting hardware ...

Page 30: ...tenna directly to an ETS Lindgren 7 TR Tripod Positioner However following are additional options for mounting the Model 3142D onto an ETS Lindgren 7 TR Tripod Positioner Contact the ETS Lindgren Sales Department for information on ordering optional mounting hardware Non stinger method to mount Model 3142D to 7 TR ...

Page 31: ... TR refers to 109042 106328 and 108197 booms 109042 boom Straight boom for general antenna mounting on a 7 TR 106328 boom Offset boom for general antenna mounting on a 7 TR with pneumatic or manual polarization 108197 boom Center rotate boom for rear mount stinger type antennas only ...

Page 32: ...32 Mounting Instructions Model 3142D mounted horizontally on 7 TR Model 3142D mounted vertically on 7 TR ...

Page 33: ...NTING OPTIONS Following are additional options for mounting the Model 3142D 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 34: ...34 Mounting Instructions This page intentionally left blank ...

Page 35: ...distance d can be approximated by E Pg d V m 30 d distance in meters g numeric gain 10 G dB 10 P antenna net input power in watts An estimate of the power required for any field strength E can be obtained from the forward power graphs in Typical Data beginning on page 39 which shows power required in watts to generate 1 V m For any other field strength not shown multiply the power in watts by the ...

Page 36: ...he field uniformly or to conduct the immunity test in a fully lined anechoic room In general closer distances require less power to create a given field strength With Optional End Plates For emissions testing it is recommended that the Model 3142D BiConiLog Antenna be used without the optional end plates The coupling of the endplates to ground will create higher uncertainty values particularly in ...

Page 37: ...ny distance between one and three meters from the EUT as long as the front face plane is illuminated according to the 0 6 dB uniform field specifications It is usually necessary to place RF absorbing material between the EUT and antenna to suppress ground plane reflection to ensure the field uniformly or to conduct the immunity test in a fully lined anechoic room In general closer distances requir...

Page 38: ...38 Application This page intentionally left blank ...

Page 39: ...3 meter 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 ...

Page 40: ...40 Typical Data Typical Gain ...

Page 41: ...1 Typical Gain With and Without End Plates For frequencies above 60 MHz use the Model 3142D BiConiLog Antenna without the end plates additional gain is provided only when using end plates for frequencies below 60 MHz ...

Page 42: ...42 Typical Data Typical VSWR ...

Page 43: ...omplete ETS Lindgren warranty for your Model 3142D BiConiLog Antenna DURATION OF WARRANTIES FOR MODEL 3142D 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 3142D BiConiLog Antenna 2 Years ...

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