2
West Mountain Radio
Operating Manual
Thank you for choosing the CLRmodule ClearSpeech
®
Digital Signal
Processor Noise Reduction Board. The CLRmodule unit connects
directly to the radio. The unit is extremely effective in improving
communication clarity. QSO’s will be more enjoyable without the
fatigue of background noise. In many cases, there will be a noticeable
improvement in understanding weaker signals, making contacts, and
general listening.
CLRmodule is ideal for mobile radio operation as noise reduction is
superb due to the Digital Signal Processor (DSP) passing voice and
CW sounds, while attenuating noise, such as atmospheric noise,
hum, hiss, whistles, and static. It effectively removes heterodynes,
ignition noise, lightning crashes and power line noise. The process
is dynamic and changes with the interference and the signal, but the
effect is rewarding. Mobile voice operation is more fun without all of
the background noise. The DSP recognizes the intermittent nature of
CW and allows it to pass noise free.
Mechanical Mounting
Horizontal:
Mount with 4-40 hardware. Include a 0.2” (or 5mm) spacer
between CLRmodule and your PCB.
Vertical:
Solder a Keystone 8190 bracket onto the CLRmodule. Then
use a 4-40 bolt to attach CLRmodule to a 0.75” F-F standoff on your
PCB. For the electrical connector use a 2x7 F straight connector.
2.00 in
1.19 in
