Lectrosonics R172 - Manual (Page 7)

If the system will be installed with dual antennas - Attach both antennas to the dual BNC connectors
on the back of the receiver. Set the ANTENNA MODE switch to the DUAL position. If a telescoping whip
is used, fully extend the whip. DO NOT USE TWO TELESCOPING WHIPS ATTACHED SIDE BY SIDE
AT THE RECEIVER. There is little to no benefit of placing the antennas side by side. Place the coaxial
antennas in the same manner as described above. The two antennas should be placed at least 6 ft apart
for best reception. This will put each antenna into a different signal path (diversity) and reduce the
possibility of dropout.
Figure 4 Dual Antenna Options
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