ETS-Lindgren 3142B BiConiLog Antenna (Archived) User Manual

Page 9

MODEL 3142B BICONILOG™ ANTENNA

Assembly & Mounting Instructions

Step 3. Connecting the optional end plates to

create the T bow-ties. The Model 3142B

has a black end cap on each of the bow-

tie elements to protect them. In order to

utilize the optional end plates that create

the T bow-ties, the black end caps must

first be removed. Using a Phillips head

screwdriver carefully remove the four

screws in each of the bow-tie end caps.

Store the end caps and the screws in a

safe place, as they should be reinstalled

when you are done using the optional end

plates.

Align the four holes on the wide end of the bow-tie element

with the four holes on the end plate. Insert and slowly

tighten each of the 4 small knobs in the receptacle holes. Be

careful not to cross-thread this connection or permanent

damage to bow-tie could occur. Repeat Step 3 for the other

optional end plate.

Contact with any metal or non-metallic structure can

capacitively load the antenna, which may cause

unrepeatable results. Therefore, care must be taken to

ensure that no part of the dipole elements or bow-ties are in

contact with the tripod or tower, particularly in vertically-

polarized tests. Where possible, run the feed cable straight

at least 1 meter or more back from the Model 3142B before

dropping vertically.

Both horizontal and vertical polarization is easily

accomplished when the Model 3142B with the optional end

Bow-tie element receptacle hole

and optional end plate with

screw knob.

REV C – PN 399229

Archived 09/23/10