2264ALB Limiter / Compressor
Issue 1
Front Panel Controls
LIM THR, REC, LIM I/O (Limiter Section)
This is a 3-function group of controls comprising the following functions:
LIM
it
THR
eshold
The inner grey knob, variable from +4dBm to +15dBm, controls the
threshold at which the limiting effect takes place.
Limit
REC
overy
The outer metal knob, a switched attenuator with notched settings from
50ms to 800 ms, controls the recovery time of the Limiter. There are
also two
Auto
settings,
A1
and
A2
.
LIM
it
I
n/
O
ut
Push the inner grey knob to place the Limiter in/out of circuit. The
LIM
I/O
LED lights when the Limiter is in circuit.
COMP THR, REC, COMP I/O (Compressor Section)
This is a 3-function group of controls comprising the following functions:
COMP
ressor
THR
eshold
The inner grey knob, variable from -20dBm to +10dBm, controls the
threshold at which the compression effect takes place.
Compressor
REC
overy
The outer metal knob, a switched attenuator with notched settings from
100ms to 1500 ms, controls the recovery time of the Compressor. There
are also two
Auto
settings,
A1
and
A2
.
COMP
ressor
I
n/
O
ut
Push the inner grey knob to place the Compressor in/out of circuit. The
COMP I/O
LED lights when the Compressor is in circuit.
COMP GAIN, RATIO, LINK (Compressor Section)
This is a 3-function group of controls comprising the following functions:
COMP
ressor
GAIN
The inner grey knob, variable from 0dB to +20dB, controls the make-up
gain applied to compensate for level lost due to the compression
process.
Compression
RATIO
The outer metal knob, a switched attenuator, runs from 1.5:1 to 6:1 in
notched increments, controlling the ratio of the Compressor section.
Control Voltage
LINK
Push the inner grey knob to select whether the control voltage is derived
internally or externally via Pin 6 of the Lunchbox
TM
rack buss to allow
linking with other 2264A LB units. The LINK LED lights when external
control is selected.
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