Lectrosonics R400a - Manual (Page 12)

R400A
LECTROSONICS, INC. 12
matching with other externally connected equipment
without actually going “on the air.”
The Tone level has a range of -55dBu to 0dBu and is
adjusted in 1dB increments by rotating the menu con-
trol. The test tone has 1% distortion and is intended for
confirmation of output levels only. Pressing the PREV
MENU button exits the setup screen.
Warning: There is only one audio output level
setting for both received audio and the setup
tone. The level set here will be retained in the
receive mode (superseding settings made in
the Level-U setup screen).
PilotBP
The R400A always powers up with the pilot tone bypass
mode disabled (a pilot tone is required from the trans-
mitter to unsquelch the receiver). To enable pilot tone
bypass mode, in the PilotBP window, rotate the MENU
control to select BYPASS, then press the PREV MENU
button.
To return to normal operating mode (pilot tone bypass
mode disabled), rotate the MENU control to select
NORMAL, then press the PREV MENU button Exit this
setup screen by pressing the PREV MENU button.
Note: No pilot tone is used in 100 Series or Mode
3 Compatibility Modes, so therefore this function is
not offered for those modes.
Phase-B
By default, the balanced audio output is driven IN
PHASE in regard to the audio signal from the trans-
mitter. To invert the receiver’s balanced audio output,
enter the Phase-B setup screen, rotate the MENU
control to select INVERT. The phase of the audio signal
is inverted at the balanced XLR jack. To restore the
receiver’s balanced audio output to “In Phase,” select
NORMAL. Exit this setup screen by pressing the PREV
MENU button.
Phase-U
By default, the unbalanced audio output is driven IN
PHASE in regard to the audio signal from the transmit-
ter. To invert the receiver’s unbalanced audio output,
enter the Phase-U setup screen, rotate the MENU con-
trol to select INVERT. The phase of the audio signal is
inverted at the unbalanced 1/4-inch jack. To restore the
receiver’s unbalanced audio output to “In Phase,” select
NORMAL. Exit this setup screen by pressing the PREV
MENU button.
TxBatt
The TxBatt setup screen allows the selection of the ex-
act battery type being used in the transmitter to provide
more accurate battery level monitoring. Four different
types of batteries are commonly used in Lectrosonics
transmitters: 9 Volt alkaline, 9 Volt lithium, AA alkaline,
and AA lithium. Rechargeable NiMH batteries can also
be used in the transmitters (see TIMER below). Cor-
rectly set, this feature will ensure that adequate warning
will be provided in advance of battery failure.
In 400 Series and 200 Series compatibility modes, the
TxBatt menu offers five choices:
9V ALK - Transmitter using a 9V alkaline battery.
Monitors voltage with battery icon in main window.
The battery voltage is displayed in the TxBatt setup
screen.
9V LTH - Transmitter using a 9V lithium battery.
Monitors voltage with battery icon in main window.
The battery voltage is displayed in the TxBatt setup
screen.
AA ALK - Transmitter using a AA alkaline battery.
Monitors voltage with battery icon in main window.
The battery voltage is displayed in the TxBatt setup
screen.
AA LTH - Transmitter using a AA lithium battery.
Monitors voltage with battery icon in main window.
The battery voltage is displayed in the TxBatt setup
screen.
TIMER - Transmitter using any battery. Displays
the cumulative time that the communications link is
active. The time is displayed in two locations: the
lower left corner of the TxBatt setup screen and the
upper left corner of the Main Window display. No
battery icon is displayed in TIMER mode.
The colon blinks when the TIMER is running, and
also indicates that the communications link is
active. When either the transmitter or the R400A
receiver is powered OFF, the timer will retain the
accumulated time and resume counting only when
a signal is detected from the transmitter.
To reset the timer, navigate to the TIMER setup
screen and quickly press and release the PREV
MENU button and the MENU control simultane-
ously. The TIMER mode is most useful for NiMH
batteries as they do not exhibit reliably identifiable
voltage drops as they discharge.
For compatibility modes other than 400 Series and
200 Series, no battery telemetry information is
available so the TxBatt setup screen offers TIMER
as the only choice.
Exit this setup screen by pressing the PREV MENU
button.
SmartNR
Available in 400 Series Compatibility Mode only, the
SmartNR setup screen is used to select one of three
noise reduction modes:
OFF - No noise reduction is performed and com-
plete transparency is preserved. All signals pre-
sented to the transmitter’s analog front end, in-
cluding any faint microphone hiss, will be faithfully
reproduced at the receiver.
NORMAL (factory default) - Enough noise reduc-
tion is applied to remove most of the hiss from the