Page-15
BevFlex-4X Installation Manual Rev 2.23 November 2019
Figure-11 Typical Antenna Pattern for a 175 ft. BevFlex-4X Beverage on Ground Antenna
(BOG @ 1.9 MHz)
Figure-12 Beverage-On-Ground Antenna Block Diagram
Receiver
Control Unit
Coax
RG-6 Coax
RG-6 Coax
Ground Rod
Ground Rod
Ham Shack
Terminator Unit
Terminator Unit
Feed Unit
Ant
Rev
Ant
Fwd
A OUT
B OUT
RX
Forward
Reverse
BevFlex-4X Block Diagram - Beverage On Ground (BOG) Configuration
RG-6 feed lines to shack
Any length, do not need
to be the same length
Typical BOG length: 100 ft to 300 ft, on ground or buried 1-2" deep
FWD IN
REV IN
Feed unit may be placed at
any point between terminators
REV END
FWD END
Direction refers to direction
of main receive lobe.
Terminal
2 to GND
Terminal
2 to GND
Installation of this antenna configuration is similar to the classic, above ground Beverage described above except
different studs on the termination units are used to connect to the ground rods. See Figure-12 above for details.
The Terminal Units come factory configured for Beverages and Beverage on Ground. See Table-3, and Figure-19 and
Figure-20 for more information on setting the internal jumpers.
3 dB Beam-width: 98.6°
Front to Back Ratio: 15.1 dB
Elevation Angle 35.0 deg.
Outer Ring -21.6 dB ref.
NEC-4 EZNEC Pro/4
