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Antenna Placement
for Optimum Range and Rack Mounting
For maximum range and when rack mounting,
the antennas must be remotely located.
The ALP-450 and ALP-600 antennas come com-
plete with a variety of mounting hardware and
10 feet (3 meters) of low loss coaxial cable. A
combination mounting bracket with 10 feet of
coaxial cable is available for the 1/2 wave an-
tenna (Model No. AB-2).
Antennas should be placed in a location with a
clear “signal path” to the transmitter. This
“path” should be as short and free of obstruc-
tions as possible. Obstructions, such as walls
ceilings, and metal objects, will reduce range
and performance.
Rack Mounting
NOTE: The SC-600 should always be
mounted on the bottom of the rack to fully
support the chassis. Failure to do this may re-
sult in damage to the SC-600.
Rack mount brackets are supplied with the
SC-600. To attach the brackets, proceed as fol-
lows:
· Align the rack bracket with the holes on
the side of the unit. See Figure 7.
· Install flat head machine screws in two
holes. Tighten securely. Repeat on the
other side of the unit. For best alignment,
perform the above steps while the unit and
rack brackets are setting on a flat surface.
· Insert the unit into a 19" rack enclosure
and insert four #10-32 x 3/8" Phillips pan
head screws (supplied) in each corner of
the rack mount brackets and secure.
Coax Cable
For best results, it is recommended that cable
losses be kept under 4 dB. (Every 3 dB of signal
loss results in a system operating distance reduc-
tion of 25%.
See the accessories section of this manual for
special low loss cable assemblies.
-5-
Figure 7
Rack Mounting