Data Sheet

DNR-1
Digital Background
Noise Reducer
Electronic Technical Services Inc.
211 Conchas SE
Albuquerque, NM 87123
PH 505-888-3923 FAX [phone]
Website: www.etsnm.com
Description
The DNR-1 is a DSP (Digital Signal
Processor) based background noise
reduction unit. It is designed to digitally
screen out voice from other (back
ground) sounds picked up by
microphones. The DNR-1 is also
effective in eliminating microphone
pre-amplifier noise. The DNR-1is
directly compatible with ETS
microphones, base stations, other "line
level" audio sources and connects
directly to DVRs, I/P cameras, etc.
Includes
• DNR-1 Processor
• 12 VDC AC adapter.
• 2 each 3’ RCA or 3.5mm patch
cables.
• Installation instructions.
Options
• SPECIFY: RCA OR 3.5mm output
connectors.
Wiring Requirements
• Microphone cable run: Stranded 22-
gauge, 2-conductor shielded cable.
Distances up to 1500 feet.
• Outputs: Audio coaxial cable, 1500
feet max each.
Warranty : 1 year parts and labor.
Made in USA
Caution
It is the responsibility of the installation company and end
user to comply with state and federal privacy laws regard-
ing the use of audio surveillance equipment. If you are
unfamiliar with these laws, consult a qualified attorney. In
most cases, posting the provided warning labels in plain
view is all that is required.
DNR-1 Specifications
• Standard RCA or 3.5mm jacks for
connection to DVRs etc.
• Adjustable input and output “line Level”
level controls.
• ETS microphone or RCA line level input.
• ETS base station or RCA line level
outputs.
• Euro-style connectors makes cable
terminations fast and clean.
• 500-4Khz Frequency response
• Up to -40db noise reduction (depending on
type of noise)
• LED power indicator.
• Power: 12 VDC @ 100mA
• Reverse polarity protected.
• All power circuitry and cable runs
protected with auto-reset type fuse.
• Black plastic ABS housing.
• Dimensions: L 5.3 x W 3.3 x H 1.6
Sound Surveillance
tm