(5) Threat forces will employ electronic warfare (EW) and
electronic counter countermeasures (ECCM)(e.g., radio direction
finding sets and communications jamming equipment) to locate,
destroy, or disrupt friendly command and control systems. To counter
this, the signal officer must know the threat's EW and ECCM
capability.
A main source of information is the Intelligence Annex
prepared by the division G2. The signal annex must contain guidance
on maintaining and reestablishing communications during jamming.
b.
Wire is used to supplement radio and to interconnect the
headquarters elements located at the battalion tactical operations
center (TOC).
Table 3-2 lists planning considerations when using
wire.
Some key planning considerations are discussed below and
additional is in Chapter 4 of FM 24-16, Communications-Electronics
Operations, Order, Records and Reports, and chapters 3, 7, and 9 of
TC 24-20, Tactical Wire and Cable Techniques.
Table 3-2.
Wire Planning Considerations
(1) Routes for wire lines must be carefully chosen because they
are extremely vulnerable to foot troops and vehicles.
The initial
selection of a route for laying wire is made on the basis of a map
study.
The final selection should be made only after a ground
reconnaissance is done.
(2) The range of wire communications varies, depending on the
weather and the condition of the wire (e.g., wet weather, poor
splices, and damaged insulation will degrade communications over
wire). For planning purposes, the range of field wire circuits using
battery operated telephones is 14 to 22 miles and 1 to 4 miles using
sound powered telephones.
The range may be extended by using
attended or unattended repeaters.
3-5
SS0125
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