Optogate Model PB-05
The PB-05 is an automatic microphone gate unit which is based on the latest optical
technology. The PB-05 is plugged between microphone and cable. It's
equipped with an infrared sensor. The PB-05 senses if someone is in
front of the microphone and will switch on the microphone. The distance
can be adjusted between 15cm and 120cm with the help of a Trim Pot.
The microphone will be switched off automatically if nobody is in
front of it. A red status LED indicates if the microphone is switched
on. The PB-05 works with 48 Volt phantom power. Condensor microphones
can be used in connection with the PB-05. The phantom power passes
the microphone. A small push button on the top allows the user to
toggle between "Mic On" and "Optogate Enable".
The PB-05 is ideal for lead and backing voval mics, acoustical instruments
and talk back mics. The PB-05 ist the best and easiest solution for
the most common problems in live applications. It eleminates unwanted
backgound noise of other instruments into unused microphones on stage.
So, the clarity of the mix and the dynamics will be increased due
to less phase cancellation and backgound noise. It reduces the possibility
of feedback from unused mics. Just plug & Play...
Specifications:
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Physical dimensions:
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69mm length x 35mm height x 21mm width
|
Connectors: |
XLR 3-pin (1 = gnd, 2 = plus, 3 = minus) |
Case construction: |
Aircraft-aluminium, black galvanizedl |
Distance: |
Adjustable between 15 - 120 cm (depending of the type of reflection surface) |
Angle: |
+ / - 10 degrees |
Switching noise: |
Immeasurable |
Frequency response: |
0 Hz - 30kHz, - 3 dB in connection with 150 Ohm microphone impedance |
Signal noise ratio: |
-114 dB / -122 dB, Mic on / off with 150 Ohm Mic. |
Distortion: |
< 0,05 % with 100mV signal |
Delaytime Mic on: |
< 0 ,2 Seconds |
Delaytime Mic off: |
About 1 second (Other times on request) |
Attenuation "mic on": |
0 dB |
Attenuation "mic off": |
42 dB in connection with 150 Ohm microphone impedance |
Usuable mic. types:
|
All type of dynamic - and phantom
powered mics.
up to 10 mA current consumption
|
Maximum input level: |
3 dB (1.1V) |
Operating temperature: |
0 - 55 degrees Celsius |
Background light range: |
0 - 20000 Lux daylight and 0 - 12000 Lux electric bulblight |
Distance measurement: |
Active infrared reflection principle with 3 bit code |
Power: |
24-48 V Phantompower (passes phantompower to the microphone) |
Current consumption: |
Ca. 3.7 mA
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