b. NETS ALLOWED IN REUSE (Continued)
Nets selected for
Air Defense Artillery (ADA) nets
Other combat support or combat service support command
reuse are grourped into classes and zones.
A zone is a
group of nets in which a freqency cannot be assigned to more than one net for
the same time period.
Classes are groups of zones. The total number of
frequencies needed for a class equals the number of nets in the largest zone
(frequencies reused between zones).
An SOI database may contain a maximum of
10 classes and a maximum of 20 zones per class. A maximum of 200 nets can be
in one zone.
d. REUSE RULES OF THUMB
The following is a list of the rules to design a reuse plan:
WARNING: Neither a RETRANS nor the CORRESPONDING net can be
placed in a reuse plan. See section G-7.a.
All nets within the same class must have the same
The class with the largest number of restrictions should be
Frequencies are selected based on the restriction(s)
assigned to the nets.
If nets have NO restrictions,
frequencies may be restricted but still assigned.
Frequencies CANNOT include restriction(s) which are included
in the nets restriction(s).
The zone with the most nets determines the number of
frequencies required to support the entire class.
Single channel nets require one frequency per net;
therefore, if 20 nets is the maximum number in a zone,
then 20 frequencies are required for the entire class.
(b). Frequency hopping nets require two frequencies per net
(manual and cue); therefore, if 20 nets is the maximum
number in a zone, then 40 frequencies are required for
the class for frequency hopping.
All zones within a class will reuse the same frequencies
(Zone 1 uses the same frequencies as Zone 2, Zone 2 uses the
same frequencies as Zone 3 and so on).
Reuse plan for most Army Divisions will contain one class
with three to
provide Direct Support (DS),
engineering must be placed in
Brigade. (No two nets within
to receive identical frequent
provide General Support (GS),
the same zone as
the same zone
cavalry, MI/CEWI, and Signal, should be placed in their own
When selecting nets for reuse, always start at the lowest
possible echelon and work your way up.