User guide

Mounting Instructions | 21
To attach the included adapters to the Model 3143B:
Model 3143B
mounted onto 4-TR
using included
100989 Polarizing
Mounting Adapter
and 105861
1/4–20 Thread
Insert
1. If required, insert the 1/4–20 thread insert into the mounting adapter.
2. Remove the mounting knob from the mounting bracket on the antenna.
3. Slide the mounting bracket onto the mounting adapter with the adapter
placed between the shoulders of the mounting bracket.
4. Thread the mounting knob through the mounting bracket, then through
the mounting 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 and
thread insert could occur.
6. Attach the mounting adapter and antenna to tripod or tower, as
required.