ETS VNF-1 Specsheet

Sound Surveillance tm

Description

Single channel, low cost background noise
reduction module for use with ETS
microphones and a DVR, I/P camera, etc.
Provides boost of frequencies in the
human voice band (1.7Khz) and 10db
per octave attenuation on both sides of the
band pass. The result is significantly
reduced background noise and increased
intelligibility of speech.

VNF-1

Voice Notch Filter

Microphone Interface

Includes

• VNF-1 Filter / interface

• 12 VDC AC adapter.

• 1 each 3’ RCA or 3.5mm patch

cables.

• Installation instructions.

Options

• SPECIFY: RCA OR 3.5mm

input / output connectors.

Wiring Requirements

• Microphone cable run: Stranded 22-

gauge, 2-conductor shielded cable.
Distances up to 1500 feet.

VNF-1 Specifications

• RCA or 3.5mm audio output connector
(specify upon ordering).

• Provides X2 gain at 1.7Khz and 10db /
Octave attenuation above and below
center frequency.

• Adjustable output level control.

• Euro-style connector makes cable

terminations fast and clean.

• Power: 12VDC @ 20mA.

• Reverse polarity protected and fused.

• Dimensions: L 3.3 x W 2.0 x H 1.6