ETS-Lindgren 3143B BiConiLog Antenna - Manual (Page 22)

22 | Mounting Instructions
Using the Stinger to Mount to a Model 2175 MiniMast
Do not use the stinger to mount the Model 3143B onto a 4-TR tripod.
The stinger mount provides on-axis rotation during 90 ° horizontal or vertical
polarization. The stinger enables you to mount 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.
 Attach the included mounting adapter to the Model 3143B as
instructed in Using Included Mounting Adapters on page 20.
 You will need one of the optional mounting knobs described in
7-TR and Mast Mounting Options on page 26. To order
optional mounting hardware, contact the ETS-Lindgren Sales
Department
1. Thread the antenna
feed or receiving
cable through the
center of the boom
so that the antenna
connector emerges
a few inches out of
the clamp end of
the boom.