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BevFlex-4X Installation Manual Rev 2.23 November 2019
Figure-7 Proper Wire and Cable Routing. Note picture also this shows the wire attachment for loop
configurations. Beverage and BOG configurations would only have the coax and wire to the ground rod on one
of the screw terminals.
10, Connect the two RG-6 coaxial cables to the feed point box,
making note of which cables connect to the “A” and “B”
labels on the box. Mark the cable ends on both
cables and connect them to the corresponding “Forward” and “Reverse”
labels on the indoor Switch Unit. (Note: these connections are reversed in the EWE and FLAG configurations)
11. Connect a user provided, 50 Ohm coaxial cable (impedance not critical) from
the “RX” terminal on the Switch Unit to
the RECEIVE input on your radio. (User provided RCA phono or BNC adapters may be required to mate with the control
unit and the appropriate input on your transceiver)
DO NOT CONNECT THE BevFlex-4X TO ANY TERMINAL CAPABLE OF TRANSMITTING, AS YOU MAY DAMAGE
THE BevFlex-4X ANTENNA COMPONENTS!
If your receiver or transceiver does not have a separate “receiver antenna”
input terminal, you will need to provide an external transmit/receive relay that is controlled by the PTT function on your
transceiver such as:
DX Engineering RTR-2 Receive Antenna Interface
MFJ-1707 AUTOMATIC RF SENSE ANTENNA SWITCH
Notes of caution:
As stated at the beginning of this document, the BevFlex-4X is a RECEIVE ONLY antenna system and must be
protected from accidental application of RF power to the Rx output “F” connector or any of the other system RF
connectors. The BevFlex-4X antenna should be located as far as possible from transmitting antennas ( 50 ft
minimum separation from a 1500W transmitting antenna) to provide best receive performance and to protect the
receiver from damage. The BevFlex-4X antenna switching and termination unit has RF limiting diodes to protect
the receiver from nearby transmitted signals up to a fairly high level of 100 mW (0.1 Watt) or +20dBm, but the
