that they serve.
Thus, long-range enemy artillery fire, missiles, or aerial
bombardment, directed at the stations as a result of enemy direction finding,
will not strike the command post area.
Cover and concealment.
The location selected should provide the
best cover and concealment possible, consistent with good transmission and
Perfect cover and concealment may impair transmission and
The amount of permissible impairment depends upon the range
required, the power of the transmitter, the sensitivity of the receiver, the
efficiency of the antenna system, and the nature of the terrain. When a set is
being used to communicate over a distance that is well under the maximum range,
some sacrifice of communications efficiency can be made to permit better
concealment of the set from enemy observation.
Pack sets have sufficiently long cordage to permit operation
from cover, while the radio set is below the surface of the surrounding terrain
Some sets can be controlled remotely from distances of 100
feet or more.
Sets of this type can be set up in a relatively exposed
position, while the operator remains concealed.
Antennas off all radio sets must extend above the surface of
the ground to permit normal communications.
Small tactical set antennas are usually of the whip type.
These antennas are difficult to see from a distance, especially if they are not
silhouetted against the sky.
Open crests of hills and mountains must be avoided.
slightly defiladed position just behind the crest gives better concealment and
sometimes provides better transmission.
All permanent and semipermanent positions should be properly
camouflaged for protection against both aerial and ground observation.
However, the antenna should not touch trees, brush, or camouflage material.
set and the message center at all times, either by local messenger or field
telephone. The station should also be readily accessible to the unit commander
and his staff.
It is almost impossible to select a site that will satisfy all
technical and tactical requirements for a radio set. Therefore, a compromise
is usually necessary and the best site