SRa5P and SRa Dual Receivers
LECTROSONICS, INC.
18
MIXTRIM and MIXMODE
Since this is a dual receiver that can be used with cam-
eras that offer only a single input in the slot, special op-
tions are available to allow the audio from the receivers
to be mixed to either one or both audio output channels.
The
MIXMODE setting determines which audio signal
appears at which output channel:
•
MIXBOTH mixes the audio and delivers the mix to
both output channels.
•
MIXTO 1 mixes the audio and delivers the mix to
output channel 1.
•
MIXTO 2 mixes the audio and delivers the mix to
output channel 2.
•
DIRECT keeps the audio separated and delivers
receiver 1 audio to output channel 1, and receiver 2
audio to output channel 2.
The
MIXTRIM
setting applies attenuation up to 20dB in
1 dB steps to adjust the ratio of the two audio signals in
the mix. This adjustment takes effect only when a mix
mode is Selected (it is ignored when the mix mode is
set to DIRECT).
IMPORTANT: The LEVEL setting in the other
setup screen (see previous page) is hardware-
based and affects the output level regardless
of which mix mode is selected. MIXTRIM then
applies attenuation to that level setting resulting in
the final level delivered to the output channel. It is
good practice to set the LEVEL of both receivers
to the same value when using a mix mode.
When a MIXMODE is Selected, each audio signal is au
-
tomatically attenuated by 6 dB prior to the mixing. This
is done to avoid overload and potential distortion since
mixing increases the level by 6 dB. The same input gain
on the camera or mixer can generally be used regard-
less of whether or not a mix mode is being used in the
receiver.
TONE
The
TONE setup screen enables an audio test tone at
the receiver output for precise level matching with other
equipment. The first screen prompts you to press the
UP or DOWN button to enable the tone at the receiver
output.
The first screen prompts you
to press the UP or DOWN
button to start the tone.
RECEIVER 2
TONE?
00
+05
Once the button is pressed, a 1 kHz tone is enabled,
and its level can be adjusted with additional presses on
the UP or DOWN buttons.
T
he level set here will be retained in the regular oper-
ating mode (it will supersede the setting made in the
LEVEL setup screen). The test tone has 1% distortion
and is intended for confirmation of output levels only.
To exit the test tone screen and stop the tone press the
BACK button.
Front Panel Shortcuts
A convenient shortcut is available from any setup
screen that displays the receiver selection option
(switching diversity mode with two separate receivers).
Once the value has been set on one receiver, the same
value can be copied to the other receiver with a simple
button push combination.
For example, in the Setup Levels screen, holding the
MENU button and pressing the UP arrow will copy the
value from Receiver 2 to Receiver 1. The arrow key
determines the “destination” of the value setting. UP
sets the value on Receiver 1, and DOWN sets the value
on Receiver 2.
+05
00
00
LEVEL
LEVEL
00
Hold MENU and
press UP arrow
To copy the value from Receiver 1 to Receiver 2, hold
the MENU button and then press the DOWN arrow.
NOTE: It does not matter which receiver is
selected (highlighted).
Locking and Unlocking the
Front Panel Controls
The front panel controls can be “LOCKED” to prevent
accidental changes being made during operation and
handling.
Note: Whether locked or unlocked, the setting
persists when the unit is off and even when the
power is turned off.
From the Main Window, press and hold the UP and
DOWN arrows at the same time and observe the
display. The current state is displayed as LOCKED or
UNLOCKED, and numerals appear as a “3, 2, 1” count
-
down takes place. When the countdown is complete
the state is reversed and the new state is displayed as
LOCKED or UNLOCKED.
