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BARRETT 4050 HF SDR TRANSCEIVER - OPERATING AND INSTALLATION MANUAL
Power Supply
When 12 V DC is supplied to the 4050 Transceiver, the PEP Voice output power
will be restricted to 125 W. Conversely, when 24 V DC is supplied to the 4050
Transceiver, the PEP Voice output power will achieve 150 W.
Power output regulation is done automatically based on the DC voltage pre-
sented to the Transceiver DC input connector. The Barrett 4022 Power Supply is
available in two versions, the BC402200 (12 V DC) and the BC402201 (24 V DC)
version. Each power supply version is capable of operation with AC mains input
voltage between 88 and 256 V AC.
In base station installations where no mains supply is available, various Barrett
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tion requirement.
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This noise causes a static type of interference in the receiver. It may be necessary,
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charging of batteries is required for installations with unreliable AC power supply,
it is recommended that a Barrett BC402200 or BC402201 be used as each pro-
vides a three stage charge facility to maintain a battery without the noise problem
described above.
Voltage Drop
The average current consumption of the Transceiver is low but during transmis-
sion of voice peaks, high current is needed for short intervals. This means that
the power supply cable must be heavy enough to supply these short duration
current peaks without excessive voltage drop. Preferably, only use the power
cable supplied with the Transceiver. If extra cable is required, use a cable with a
conductor square area of no less than 8 mm
2
. Unwanted voltage drop will also
occur if incorrect wiring techniques such as poor choice of connection points
and incorrect use of terminal lugs are used.
Protection Fuse
The Transceiver is provided with adequate internal protection. However, the
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risk does not exist. The fuse used must be installed in the active wire as close as
possible to the battery, and must be of a type which has a low voltage drop at
the peak currents expected.
Summary of Contents for 4050 HF SDR
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