Selecting Frequency; Selecting Programmable Switch Functions; Selecting The Low Frequency Roll-Off; Selecting Audio Polarity (Phase) - Lectrosonics DBa Instruction Manual

6) If the audio output level of the receiver is too high or
low, use only the controls on the receiver to make
adjustments. Always leave the transmitter gain ad-
justment set according to these instructions, and do
not change it to adjust the audio output level of the
receiver.

Selecting Frequency

The setup screen for frequency selection offers two
ways to browse the available frequencies.
Freq.
Gain
Freq.
ProgSw
Rolloff
Press the MENU/SEL button to select each field. Use
the and arrow buttons to adjust the frequency.
Each field will step through the available frequencies in
a different increment.

Selecting Programmable Switch Functions

The programmable switch on the top panel can be con-
figured using the menu to provide several functions:
• (none) - disables the switch
• Mute - mutes the audio when switched on; LCD will
blink a message and -10 LED will glow solid red.
• Power - turns the power on and off
Gain ProgSw
Freq.
ProgSw
Rolloff
NOTE: The programmable switch will continue
to operate whether or not keypad changes are
locked.

Selecting the Low Frequency Roll-off

The low frequency audio roll-off is adjustable to op-
timize performance for ambient noise conditions or
personal preference.
Low frequency audio content may be desirable or
distracting, so the point at which the roll-off takes place
can be set to 35, 50, 70, 100, 120 and 150 Hz.
Rolloff
Gain
Freq.
ProgSw
Rolloff
Rio Rancho, NM
Freq.
494.500 494.500
Use the
(none)
arrow buttons to
select the desired
Mute
function or disable
the switch
Power
70 Hz
Digital Hybrid Wireless Belt-Pack Transmitter

Selecting Audio Polarity (Phase)

Audio polarity can be inverted at the transmitter so the
audio can be mixed with other microphones without
comb filtering. The polarity can also be inverted at the
receiver outputs.
Phase
BatType

BatTime

Locked?

Selecting Battery Type

The voltage drop over the life of different batteries var-
ies by type and brand. Be sure to set the correct battery
type for accurate indications and warnings. The menu
offers alkaline or lithium types.
Phase
BatType
BatTime
Locked?
If you are using rechargeable batteries, it is better to
use the timer function on the receiver to monitor the
battery life rather than the indicators on the transmitter.
Rechargeable batteries maintain a fairly constant volt-
age across the operating time on each charge and stop
working abruptly, so you will have little or no warning as
and they reach the end of operation.
BatTime
A built-in timer can be used with any battery type, but it
is especially valuable with rechargeable batteries such
as NiMH types. The voltage remains fairly constant
across the discharge time of a rechargeable battery,
then drops quickly near the end of the operating time.
The most accurate way to determine runtime status
is by testing the time provided by a particular battery
brand and type, then using the timer to determine re-
maining runtime. Rechargeable batteries lose capacity
over their life, so it is good to run the battery down and
note the runtime on older or unfamiliar batteries.
Phase
BatType
BatTime
Locked?
Phase
Normal
Inver t
BatType
Alk.
Lith.
Bat 3:30
Bat 0:00
Reset?
Reset?
No
No
Yes
Yes
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