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User's Manual | ACOM 04AT | Remote Automatic Antenna Tuner and Switch
2.6. Grounding, Additional Information
Ground the tuner and install the cables from the antennas and from the tuner obeying safety requirements
in Section
1.9 Safety Considerations, Explicit Definitions
grounding according to its function!
2.6.1. Lightning Protection Grounding
See the instructions provided in Section
. This kind of grounding is used for lightning protection of people, buildings and
Lightning Protection
equipment, but does not protect you from voltages or currents with AC mains frequency or emitted/induced
RF signals.
2.6.2. Grounding for Protection from Electric Shock
This grounding (or neutralizing in some cases) is used for protection from electric shock from currents with
AC mains frequency. It will not protect you from a possible lightning or emitted/induced RF signals.
To ensure that your installation complies with the requirements consult a qualified electrician to find out if
simultaneous grounding and neutralizing, according to the recommendations of Section
Considerations, Explicit Definitions
shock protection.
2.6.3. Radio Frequency Grounding or Counterpoise
This grounding is used for protection from transmitted/induced RF signals, and possible radio frequency
interferences. It will not protect you from a possible lightning strike or currents with AC mains frequency.
These may be e.g., RF counterpoises (radials), which, in particular, could even be isolated from the ground.
When they are placed at the required height and have the proper length, they can resonate and be much
more effective for RF emission and protection than a direct connection to the ground.
However, this only applies to radio frequencies. They have no protective functions against electric shock
from currents with AC mains frequency, or lightning.
2.7. Connecting RF Cables, Additional Information
All connections between the tuner and the radio station should be executed in the sequence described
below, before the tuner is powered from the amplifier.
Before you start connecting the coaxial cable from the radio station to the tuner, ensure
that its two ends are not connected to anything and take all necessary precautions that
no one has access to them! Place warning signs at both ends reading:
October 2023
. You need to distinguish between different kinds of
1.9 Safety Considerations, Explicit Definitions
, is allowed by the applicable standards and local regulations for electric
WARNING
WARNING! DO NOT TURN ON - PEOPLE WORKING!
and in
S e c t i o n INSTALLATION | Page 41 of 88
APPENDIX 1 |
1.9 Safety
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