3
Output Connections
There are two audio output jacks on the back for each of
the receivers: balanced (4 mV) and unbalanced (40 mV).
Use shielded audio cable for the connection between the
receiver and the mixer. If the input of the mixer is a
1
/
4
" jack,
connect a cable from the
1
/
4
" unbalanced audio output on
the back of the receiver housing to the mixer. If the input
of the mixer is an XLR-type input, connect a cable from the
balanced XLR-type audio output on the back panel to the
mixer. The two isolated audio outputs permit simultaneous
feeds to both unbalanced and balanced inputs. For example,
both a tape recorder and a mixer can be driven by each
receiver.
Antennas
Attach a pair of UHF antennas to the antenna input jacks;
connect one to the main “Antenna A In” jack and one to the
main “Antenna B In” jack. See Figure B. The antennas are
normally positioned in the shape of a “V” (45° from vertical)
for best reception.
The antennas can be remotely located from the receiver.
However, due to signal loss in cables at UHF frequencies,
use the lowest-loss RF cable type(s) practical for any cable
runs over 25 feet. RG-8 is a good choice. Use only copper-
shielded cable, not CATV-type foil-shielded wire.
The two pairs of antenna inputs might be used when
coverage of a split banquet/meeting room is difficult with a
single pair of antennas, or in the case of multipath-prone
areas. Simply connect another set of
remote
antennas to
the alternate “A” and “B” inputs. (Main and alternate
antenna inputs are identical and interchangeable.) The
unique RF nature of each venue normally requires some
experimentation to determine the best locations, if any,
for additional antennas.
All four antenna input jacks also p12V DC output
on their center pins to power in-line RF devices. A combined
total of 20 mA can be drawn from the “A” jacks and 20 mA
from the “B” jacks. While an accidental short-circuit will not
harm the internal 12V supply, make certain that an antenna
cable shield does not contact the center conductor.
Power Connections
The switching power supply is designed to operate properly
from any AC power source 120-240V, 50/60 Hz without
adjustment. Simply connect to a standard AC power outlet,
using an IEC input cordset approved for the country of
operation. Use the included cable clamp to secure the plug
in the chassis connector. Power to the unit is controlled by
the front-panel Power switch.
Headphone Jack
A headphone jack on the front panel provides monitoring
of each receiver’s output. The
1
/
4
" TRS jack is intended for
use with stereo headphones. The “Phones” level control
affects the headphone jack only.
Fig. B Antenna Connections
