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8
when connecting the UM1 to consumer (-10) audio equipment. Wiring is as follows: tip hot, sleeve
ground. If your video camera has stereo audio inputs, you'll need to use a Y-adapter that has a 1/8"
(3.5 mm) mini-phone plug at one end and dual male RCA-type plugs at the other end.
11: Audio Output Level switch - Sets the audio output level of both the balanced and unbalanced
outputs (see #10 above and #14 below) to -30 dBm (mic level), -20 dBm, or -10 dBm (line level). See
the "Setting Up and Using the UM1 System" section on page 9 in this manual for more information.
12: Level control - This knob sets the level of the audio signal being sent to the headphones out-
12
13
PHONES LEVEL
(see #12 above). Maximum output is 240 mW @ 30 ohms).
14: Balanced output* - Use this electronically balanced low impedance (600 Ohm) mini-XLR jack
when connecting the UM1 to professional (+4) audio equipment. Pin wiring is as follows: Pin 1
ground, Pin 2 high (hot), and Pin 3 low (cold).
15: Meter switch - This three-position switch determines the function of the front-panel UM1
meter (see page #2 on previous page). In the left "RF" position, the meter indicates the strength
of the incoming RF signal. In the center "BATTERY" position, the meter indicates relative battery
power, showing whether the installed battery is at low (red), mid (yellow) or high (green) strength.
(Note: When the red "low" indicator lights, performance is degraded and the battery needs to be
replaced). In the right "OFF" position, the meter is disabled altogether, thus conserving battery
power.
* If required, both the unbalanced and balanced outputs can be used simultaneously.
UM1 Frequency Conversion Chart
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9
10
11
DC INPUT
OUT UNBAL
LEVEL
30 20 10
14
METER
15
BATT.
RF
OFF
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5
Guided Tour - UM1
9: DC input - This jack will accept a DC input volt-
age of 6 - 13 volts (inner connection [tip] positive,
outer connection [sleeve] ground) from your video
camera, if available. Connect the optional Samson
AC300R adapter here to charge a rechargeable 9-
volt Ni-Cad battery.
10: Unbalanced output* - Use this unbalanced
(1K Ohm max.) 1/8" (3.5 mm) mini-phone jack
put (see #13 below).
13: Headphones output - Connect a stereo
headphone to this standard 1/8" (3.5 mm) mini-
phone jack in order to monitor the signal being
output by the UM1. We recommend the use of
30 ohm headphones. The level of the headphone
signal can be set by adjusting the Level control
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