ETS-Lindgren 7-TR, User Manual

Page: 11 / 49

www.ets-lindgren.com Introduction 11
Boom Options
A variety of booms for the 7-TR are available, depending on your antenna
model(s) and polarization requirements. For additional information see
Replacement and Optional Parts on page 18.
Boom Type Function
Straight (109042) For general antenna mounting on a 7-TR.
Offset (108983) For general antenna mounting on a 7-TR
with pneumatic or manual polarization. Can
also be used to mount stinger-type
antennas.
Stinger Only (118947) For stinger mount antennas only.
Centerline Rotation (108507) For Model 3106 Series antennas only; when
changing polarization, maintains centerline
rotation.
For mounting information, see Mounting a
Model 3106 Series Antenna on page 29.
Polarization Options
The 7-TR is available with no polarization, with pneumatic polarization, or with
manual polarization; the following sections describe each option. Additionally, a
kit is available to upgrade an existing 7-TR from no polarization or manual
polarization to pneumatic polarization. See Pneumatic Polarization Upgrade Kit
on page 35 for more information.