Specifications

SETUP AND CONNECTIONS
UNPACKING
Unpack all units and parts of the Wireless Microphone
System. If possible, retain packaging in the event of
returning a unit for repair. Check all boxes and inner
packaging; if any damage or shortage is discovered,
refer to the Warranty Service section of this manual.
RECEIVER
Place the W25DR receiver in its operating location and
connect the supplied power converter to the rear panel
POWER Jack. Connect the power converter to a 105 to
125 Vac, 60 Hz power source.
Assemble the two 5/8-wave whip antennas by screw-
ing the three sections of each antenna together. IMPOR-
TANT: Do not use either antenna with one or two sec-
tions; all three sections must be connected for proper
operation. Attach the right-angle UHF adapter to one
ANTENNA connector. Attach one antenna to the
upward-facing end of the UHF adapter. Connect the sup-
plied 7.6m (25 ft) coaxial cable to the other ANTENNA in-
put. NOTE:
For more information on antenna spacing
for optimum reception, refer to the Antenna section of
this manual.
Connect the second antenna to the other end of the
coaxial cable. The L-bracket and three screws supplied
with the receiver permit the second antenna to be
mounted on a wall or other vertical surface. After the
bracket is fastened to the surface with the screws, insert
the antenna base in the circular cutout of the bracket
and tighten the hex nut and washer to secure the anten-
na.
The coaxial cable allows distance of 7.6m (25 ft) for
optimum diversity operation. A second cable can be ob-
tained (WA280) to provide greater antenna separation of
15.2m (50 ft) for use in extremely difficult operational en-
vironments. Note that the insulated hook at the top of
the antenna can be used to suspend the antenna from
any convenient non-metallic object (hook, bracket, rope,
etc.).
IMPORTANT:
Make certain both antennas are within
the line-of-sight of the transmitter’s operating area. This
will facilitate the best use of the receiver’s DIVER-
SIPHASE™ circuit for clean, clear, dropout-free opera-
tion.
If desired, the receiver can be installed in a single
(WA220) or double (WA230) rack panel kit for mounting in
a standard 19-inch audio equipment rack. Note that
receiver rack-mounting requires remote location of both
antennas.
For Microphone Level Use
Obtain an XLR-type balanced low-impedance audio
connecting cable and connect between the W25DR OUT-
PUT Connector and the mixer or amplifier microphone-
level input. Make certain the receiver MlC/LlNE Switch is
in the MIC position. Adjust the levels as described under
Level Adjustment.
For Line Level Use
Obtain an XLR-phone plug unbalanced audio connec-
ting cable and connect it between the W25DR OUTPUT
Connector and the mixer or amplifier line input jack (see
Figure 1). Make certain the MlC/LlNE Switch is in the
LINE position. No adjustments are necessary.
CABLE WIRING
FIGURE 1
Audio Output Connections
The front-panel 1/4-inch phone jack permits feeding
the W25DR output signal to:
• An 8-ohm headphone (stereo or mono)
• A 600-ohm headphone or line input
• A 10-kilohm input to a guitar amplifier or the auxiliary
input of an amplifier, mixer or tape recorder.
The IMPEDANCE Switch adjacent to the phone jack
selects the desired impedance, and the adjacent LEVEL
Control sets the appropriate level for the input to be us-
ed.
TRANSMITTER
With the transmitter POWER ON/OFF Switch in the
OFF position, slide the battery compartment access
cover down and off the transmitter case. Insert a new
9-volt transistor-radio-type battery (Duracell MN1604 or
equivalent) in the compartment. Observe the proper
polarity: the large (negative) terminal in the large chan-
nel and the small (positive) terminal in the small channel.
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