Lectrosonics UCR210d - Manual (Page 6)

FRONT PANEL CONTROLS AND FUNCTIONS
AUX MAIN
PILOT
TONE
BYPASS
RF LEVEL
MOD
LEVEL
TX
BAT 0° 180°
INT
PWR
EXT
PWR
OFF
AUDIO
LEVEL PT
RCVR
B A T
PT LED (Pilot Tone)
The audio output muting (squelch) function of the UCR210D is
controlled by a 32kHz tone modulation of the RF carrier. The
audio output is muted until this tone is present. This LED shows
three conditions:
Off - No pilot tone detected
Green - Pilot tone detected
Red - Pilot tone bypassed - press pilot tone
bypass button to engage
TRANSMITTER MOD LEVEL METER
The two audio level LED’s are bi-colored (red/.green) and indicate
5 levels ­
off - off no audio modulation
Green - off low audio
Green - green moderate audio
Red - off full audio
Red - Red limiting
RF LEVEL INDICATORS
The RF (radio frequency) level meter has three tri-colored LED’s
which can indicate 10 levels
off off off no RF level
red off off
red red off
red red red
yellow red red
yellow yellow red
yellow yellow yellow
green yellow yellow
green green yellow
green green green Strongest RF level
RCVR BAT LED
This tri-color LED will indicate the battery condition in the re­
ceiver as follows
Green
Yellow
Red - battery good
- battery getting low
- battery very low - change now
Blinking Red - battery critical failure imminent
Note: When using external power, this LED will only show
GREEN as a power indicator. It doesn’t monitor the level of the
external voltage. (Later versions of this receiver do monitor the
external voltage as well as the internal battery voltage.)
TX BAT LED
This tri-color LED will indicate the condition of the battery in the
transmitter as follows:
Blinking Green - condition unknown - checking
level - wait for one of the
following indications:
Green - battery good
Yellow - battery getting low
Red - battery very low - change now
Blinking Red - battery critical - failure imminent
POWER SWITCH
This switch turns on the receiver - when switched to the left INT
PWR the unit will run on the internal batteries. When switched to
the right EXT PWR the unit operates on the external power connec­
tion - the power source could be an external battery, a camera
battery or the AC adpater.
PILOT TONE BYPASS
Pressing the pilot tone bypass switch over-rides the pilot tone
circuitry to allow you to listen to an interfering signal for determine
its source or for diagnostic purposes. Be careful when bypassing
pilot tone. Gross audio noise may come through if the radio is
receiving severe interference. To re-engage pilot tone, press the
button again.
AUDIO OUTPUT LEVEL CONTROL
The front panel Audio Output Level control will adjust the audio
output within the range set by the Lo/Mid/Hi range switch (located
on the rear panel.) In the Low position the adjustment range is
from –50dBm to –20dBm, the High position (center) allows an
adjustment from –30dBm to 0dBm, and the Fixed position sets the
audio output to a fixed +8dBm with no front panel control.
ANTENNA CONNECTORS
These are standard 50 Ohm BNC type jacks for the RF input to the
receiver. The left jack is the main antenna and the right jack is for
the diversity antenna.
ANTENNA PHASE LEDs
These two LEDs labeled “0 o ” and “180 o ” indicate the Smart Diver­
sity circuitry is active. If one stays off constantly, double check
antenna position. In typical operation, the lights will change back
and forth as the signal changes.
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