Swann CUBIC ASTRO 102 BX Service Manual page 153

OPERATING MANUAL
MODEL PSU-G POWER SUPPLY
1. The Swan PSU-G fixed station power supply-speaker provides
a regulated D.C. voltage for operation of all Swan solid
state transceivers, but is intended particularly to match
the Swan ASTRO-102BX Transceiver.
2. The PSU-G is designed to operate from nominal 117 volts A.C.,
SO-GO
Hz or 230 volts ·A.C. SO-GO Hz.
All assemblies are
factory wired for 117 v.a.c. operation, however, they may
easily be re-wired for 230 v.a.c. operation.
3. The PSU-G is conservatively rated at 20 amps at l3.G volts
for intermittant operation and 10 amps semi-continuous opera-
tion.
*
Intermittant operation: Operated under a cycle of one
minute on and four minutes off.
*
Semi-continuous: Eight hours continuous in 24 hours.
The output voltage is factory set to l3.G v.d.c. and is
adjustable over a range of approximately 10 to 23 volts.
The output regulation at full load is 3%, ripple is less
than 1%. The heatsink is adequate for operation under the
above operating conditions, however, under prolonged operation,
the heatsink will reach temperatures too hot to touch. The
supply should not be positioned so.that circulation of air
around the heatsink is inhibited. If operation is intended
over a long period of time or under environmental conditions
of high ambient temperature, it is recommended that a small
fan be used to direct air against the heatsink.
4. The PSU-G is styled to match the Swan transceivers and is
complete with A.C. line cord, D.C. power cable with connector
for the transceiver. The front panel contains ON-OFF switch
and indicator light. The PSU-G also has a speaker for external
speaker operation, and a jack for low impedance headphone? -~
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5. A two conductor connector at the end of the D.C. power cable
is provided to power certain accessories (i.e., Pilot Lights
of Antenna Tuner) and is fused by fuse in transceiver.
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Specifications:
Average Power Consumption:
Input:
Dirnensions:
Weight:
117 watts receive
700 watts transmit
117/230 VAC
SO-GO Hz
9 3/4" W
x
5 3/4" H
x
10 3/4 0
19 Ibs, 12 oz.: 8.9G Kg