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BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - INSTALLATION
Cooling Fan
The cooling fan is an optional extra which may be added to the PRC-4090 trans-
ceiver for situations where high volumes of data or Digital Voice transmissions
may cause the transceiver’s internal temperature to rise above 65
o
C.
The cooling fan requires no user input as it is temperature controlled by soft-
ware, automatically activating when necessary.
Installing the Cooling Fan
Attach the cooling fan to the transceiver by carefully aligning the connector
pins located beneath the cooling fan with the socket on top of the transceiver
as shown below.
Four screws (located in the four corners of the cooling fan) are used to secure
the cooling fan to the SDR.
To uninstall the cooling fan, reverse the installation procedure.