Wideband Hand Held Transmitter
Rio Rancho, NM
9
Gain
This setting is very important since it will determine the
audio signal to noise ratio and dynamic range that the
wireless system will deliver. Gain must be set accord-
ing to the individual voice, the mic capsule in use and
the handling technique of the user. LEDs in the control
panel facilitate accurate gain adjustment.
Gain
Freq.
ProgSw
Rolloff
-40
-20
0
Gain
25
IMPORTANT: See the section
Input Gain
Adjustment
on page 10 for details.
Freq.
The operating frequency is normally determined using
the scanning function in the receiver or with coordina-
tion software. The frequency is shown on the transmit-
ter LCD display in MHz and with a hexadecimal code
that is used on most Lectrosonics receivers.
Gain
Freq.
ProgSw
Rolloff
-40
-20
0
Freq
8A
955.300
ProgSw
The
Programmable Switch
on the housing can be set
to provide several functions, or it can be bypassed.
Functions:
TalkBack
Power
Cough
Mute
(none)
See page 11
for details
Gain
Freq.
ProgSw
Rolloff
Rolloff
A low frequency roll-off filter can be set for a -3dB
point at 35, 50, 70, 100 or 125 Hz. Roll-off slopes are
12.2 dB/octave at 35 Hz and 10.1 dB/octave at 70 Hz
through 125 Hz.
Gain
Freq.
ProgSw
Rolloff
Rolloff
70 Hz
The roll-off frequency is normally adjusted by ear to
suit personal preferences.
Compat
The HHa can be used with Lectrosonics IFB systems
by selecting the correct
Compatibility Mode
. The
receiver must be set to the same mode.
Compat
StepSiz
TxPower
Phase
Compat
NU HYBR
The available modes are as follows:
•
NU HYBR
Digital Hybrid (ETSI compliant)
•
IFB
Lectrosonics IFB
StepSiz
The frequency can be adjusted in 100 kHz or 25 kHz
steps to match the receiver. 100 kHz is the standard
increment for Lectrosonics wireless systems, but 25
kHz increments may be needed for use with systems
from other manufacturers or when frequency coordina-
tion requires it.
Compat
StepSiz
TxPower
Phase
StepSiz
100 kHz
25 kHz
The Hex Code on the Main Screen will be smaller in
the 25 kHz mode and a fraction will appear next to the
characters if a frequency in between even 100 kHz
steps is selected.
8
954.300
-40
-20
0
0
954.325
-40
-20
0
80.25
Hex Code in
25 kHz mode
TxPower
Output power can be set to 100 mW to extend operat-
ing range (which can also suppress noise and drop-
outs to some extent) or set to 50 mW to slightly extend
the operating life of the batteries.
Compat
StepSiz
TxPower
Phase
TxPower
50 mW
100 mW
