Astatic 220VP プリント

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220VP/220VPW
Continuously-variable Pattern Condenser Boundary Microphone 
Description
The 220VP/220VPW is an inconspicuous, continuously-variable 
polar pattern, button-style, condenser boundary microphone 
designed for surface installation. Special attention has been 
given to design the 220VP to resist interference from cell 
phones, two-way communication, and other RF devices. The 
integral 80Hz, 12dB/octave high-pass filter removes unwanted 
low-frequency energy to improve intelligibility. The all metal, 
threaded body and shock-absorbing bushings make for easy 
installation in surfaces up to 3" thick.
When mounted on a hard surface, the 220VP will take 
advantage of the “boundary effect” signal-to-noise ratio 
increase. The 220VP is terminated with a standard 3-pin  
XLRM-type connector recessed in the body of the microphone.
The 220VP features a continuously-variable polar pattern so 
it can shorten the list of products an audio system designer 
needs to consider when boundary condenser microphones 
are specified. The installer can precisely tailor the polar pattern 
for the best performance depending upon the application 
or environment. The 220VP is primarily designed for speech 
and vocal pickup in governmental, institutional, religious and 
business applications.
Features
•  Continuously-variable polar pattern control
•  Securable polar-pattern control
•  All-metal housing suitable for commercial applications
•  Mounting hardware included
•  RF (radio frequency) Resistant Architecture
•  Integrated high-pass filter for elimination of  
  unwanted low-frequency energy
•  Shock-absorbing polymer bushings included
•  Inconspicuous design
1.  Refer to dimensional drawing for dial orientation.
2.  Adjust dial to desired polar pattern using a 1/8"  
  [3mm] flat-head precision screwdriver.
3.  Install microphone.
Installation Note:
The mounting hole should be 15/16" [24mm]  
in diameter to accommodate microphone  
and polymer bushings.
Polar Pattern Adjustment