Modulation ................... FM
Output Power ................. 15 W (minimum)
Pulse Type ................... Binary pulse
12-channel .............. 576 kHz
24-channel .............. 1152 kHz
One 2 1/2-ton truck
the flexibility and mobility to meet the demands of the mission.
paragraphs describe some of these in greater detail.
a. Shelters. Equipment shelters provide a secure mobile capsule
for multichannel radio assemblages.
They can provide insulation,
weatherproofing, and air conditioning to protect the electronic
Their design includes equipment racks, electrical and
signal wiring, and storage space. Constructed of aluminum, they are
lightweight for transportation by land or air.
form standard ATACS multichannel assemblages.
(1) Electrical equipment shelter S-250. The S-250 is a medium
sized shelter capable of storing loads up to 1 1/4 tons. It houses
equipment generally used at the division or corps levels.
shelter measures 85" X 79" and 70" in height (exterior), and weighs
transportable by air.
Figure 1-36 shows the S-250 mounted on a
mobile multipurpose vehicle with a power unit trailer.
(2) Electrical equipment shelter S-280.
The S-280 is a large
shelter capable of transporting 2 1/2 tons of equipment. It stores
the larger assemblages found at the corps level. The shelter is 146"
X 87" and 83" in height (exterior), and weighs 1200 pounds.
requires a 2 1/2 ton truck as a prime mover on the ground.
its size, the S-280 has limited air transport capability.