TM 11-5820-803-12
Section II. SITE AND SHELTER REQUIREMENTS
equipment is mounted on extendable slide rails. The
2-12. Siting
mounting has the capability of tilting when extended for
No specific sitting requirements are required since the
access to either the top or bottom of the equipment. A
PSK modem is rack mounted and hardwire connected to
minimum of 30 inches clearance is required to extend
the earth terminal and the digital interface.
and service the equipment in the rack. A side view of the
PSK modem is shown in figure 2-18 for reference
2-13.
Shelter Requirements.
purposes. The air inlet areas are near the font of the
The PSK modem is rack mounted in a standard 19-inch
unit on the top and bottom and the two exhaust fans are
equipment rack. The modem weight is 80 pounds. The
on the rear of the unit. The installation must allow free
dimensions required for installation are: height 12 1/4
air flow through these area.
inches, depth 22 inches in a standard 19 inch rack. The
Figure 2-18. PSK modem overall dimensions.
Section III. SERVICE UPON RECEIPT OF MATERIEL
2-14. Unpacking
b. Check the equipment against the packing slip to
The PSK modem is packaged in cardboard or wooden
see if the shipment is complete. Refer to paragraph 1-10
containers and sealed with tape and no unusual
for listing of PSK modem components. Report all
unpackaging procedures need to be observed; however,
discrepancies in accordance with the instructions in
exercise care when removing the unit from the container
to prevent damage to the equipment.
Retain the
service even though a minor assembly or part that does
packaging material for possible future use.
not affect proper functioning is missing.
c. Check to see whether the equipment has been
2-15. Checking Unpacked Equipment
modified. (Equipment which has been modified will have
a. Inspect the equipment for damage incurred
the MWO number near the nomenclature plate.) Check
during shipment. If the equipment has been damaged,
also to see whether all currently applicable MWO's have
report the damage on DD Form 6 (Packaging
been applied.
(Current MWO's applicable to the
improvement Report) as prescribed in (para 1-1c) AR
equipment are listed in DA Pam 310-1.).
700-58.
Change 2 2-19
