6 of 31
About this Guide
The main purpose of this guide is to provide you with all the information you require to ensure optimum
performance from your 2018 Mobile magnetic loop HF antenna.
The Guide explains in detail how to operate the 2018 antenna once it has been installed by an
authorised Barrett Communications representative.
The Guide also covers the basic principles of installation. However, we recommend that the
installation of your 2018 be carried out by a qualified Barrett Communications representative.
Glossary of Terms
ATU
Antenna Tuning Unit
HF High
Frequency
kHz
Kilohertz (measure of frequency)
km Kilometre
MHz
Megahertz (measure of frequency)
PEP
Peak envelope power
PTT
Press To Talk
Selcall Selective
Call
Telcall
Selective Call with Telephone Call facility
VSWR
Voltage standing wave ratio
W Watt