Lectrosonics T1 - Manual (Page 10)

T1
Operating Notes
The AUDIO LEVEL control should not be used to
control the volume of the associated receiver. This gain
adjustment is used to match the T1 input level to the
incoming signal from the sound source to provide full
modulation and maximum dynamic range.
If the audio level is too high — both LEDs will light
frequently or stay lit. This condition may reduce the
dynamic range of the audio signal.
If the audio level is too low — neither LED will light,
or the -20 LED will glow dimly. This condition may
cause hiss and noise in the audio, or pumping and
breathing in the background noise.
The “-20” LED turns on approximately 20 dB below full
deviation. The “0” LED turns on at full deviation and
Accessories
CH20
Power supply for IFB base transmitters with locking
LZR power jacks; 110 VAC input, 12 VDC regulated
output; 400 mA max.
21586
DC16A Pigtail power cable, LZR to strip & tin
SNA600
Collapsible dipole antenna that adjusts over a wide
frequency range. Ideal for situations where a full
360 degree receiving pattern is required as op­
posed to a directional pattern.
ALP600
Shark Fin style Log Periodic Dipole Array (LPDA)
that provides a useful directional pattern over a
broad frequency bandwidth. Ideal for portable
applications including temporary setups for field
production.
ALPKIT
Stainless steel kit for mounting SNA600 and
ALP600 antennas on photo and video tripods,
lighting equipment, and standard microphone
stands.
ARG15/ARG100
Coaxial cables for remote antennas available from
Lectrosonics in a variety of lengths from 2 to 100 ft.
RMP195
4 channel rack mount for up to four T1 IFB
receivers. Rocker switch installed to work as a
master power switch if desired.
indicates that the input shunt compressor is operating.
The input limiter will handle peaks over 15 dB above full
modulation, regardless of the gain control setting. The
limiter uses a true absolute value circuit to detect both
positive and negative peaks. The attack time is 5
milliseconds and the release time is 200 milliseconds.
Occasional limiting is desirable, indicating that the gain
is correctly set and the transmitter is fully modulated for
optimum signal to noise ratio. Different voices will
usually require different settings of the AUDIO LEVEL
control, so check this adjustment as each new person
uses the system. If several different people will be using
the transmitter and there is not time to make the
adjustment for each individual, adjust it for the loudest
voice.
CH20
SNA600
ALP600
ARG15/ARG100
RMP195
LECTROSONICS, INC. 10