Antenna Placement And Orientation; Frequency Selection - Lectronics D4 Instruction Manual

D4T/D4R
Antenna Placement and
Orientation
The supplied antenna is a center fed half-wave type
with a right angle elbow and rotating mount. For most
applications, the whip antennas should be vertically
oriented to provide a circular coverage pattern. In other
orientations, the transmitter antenna should be paral-
lel with and not directly above or below the receiver
antennas.
DIGITAL 4 CHANNEL TRANSMITTER
FUNC
BACK
1 2 3 4
OFF
D4T Transmitter
DIGITAL 4 CHANNEL RECEIVER
FUNC
PHONES
BACK
1 2 3 4
OFF
D4R Receiver
10
ON
ON

Frequency Selection

For a single system, any of the four frequencies can be
used for normal operation. With multiple systems oper-
ating in the same location, select a different frequency
for each system.
Walk test each system through the area where it will
be operating and listen for dropouts while observing
the RF level indicator on the receiver LCD. It is best to
have all equipment in the location turned on to check
for interference and short operating range.
If the RF level on the receiver LCD indicates a weak
overall level, try re-positioning the antennas. Re-ori-
enting the antennas or moving them even a few inches
away from nearby surfaces can also make a difference.
If dropouts are experienced during the walk test, but
the RF level at the receiver remains strong, there could
be interference on that frequency band. Switch the
system to another frequency and walk test the system
again to check for adequate operating range.
LECTROSONICS, INC.