20
RX ANT
(toggle switch center)
Place the switch in this position for reception with a receive antenna. This position connects
the
RADIO
to the
RX ANT
for receive mode on a receive antenna and allows automatic
switching of the
RADIO
to the
MAIN ANT
during transmit. The mode LED will illuminate
blue only during receive with the receive antenna and will change to red when the
transceiver keying switches the RTR-2 to transmit mode.
MAIN ANT
(toggle switch momentary down)
Manually switches
RADIO
to
MAIN ANT
momentarily for a fast check of reception on the
transmitting
MAIN ANT
. The mode LED changes to red.
Receiving Antenna Spacing Guidelines
The overall benefits that receiving antenna offer is less noise. Weak signals can be heard on a
dedicated receive antenna because it rejects noise and strong stations by virtue of its design, size,
directivity and lower sensitivity.
Therefore, placement of a receiving antenna is very important. Normally, excellent results are
achieved by placing a receive antenna in a low noise environment. If possible, receive antennas
should be located at least 1/2-wavelength away from noise sources and noise re-radiating antennas.
Houses, other metal or structures containing metal, metal fencing, towers and transmitting antennas
can introduce noise into a receive antenna by proximity which may reduce the effectiveness of a
receive antenna.
However, in many cases, the physical space required for the ideal receive antenna installation is not
available in the average back yard. In the
Connection Diagrams
section there are typical and special
system configurations showing absolute minimum spacing between transmitting and DX
Engineering Active Receive Antennas. For optimal performance, greater spacing is recommended
for better reception results.
