5
West Mountain Radio
Operating Manual
Specifications
Enclosure
Aluminum, powder coat painted
Dimensions
5.75 x 4.25 x 1.25 inches
Power Requirements
9 to 16 Vdc; 1.1A typical before onset
of clipping
Audio Input
High impedance, 0.01 VAC
Voltage Gain
46 dB
Audio Output Power
11 watts RMS into 4 ohms @ 13.8 VDC
Maximum Audio Output Voltage
7.75 Vrms
Input Clipping Level
0.04 volts RMS
Noise Reduction Characteristics
Adaptive, single tone greater than 50 dB
Powerpole® is a registered trademark of
Anderson Power Products
ClearSpeech Adaptive Speech Filter
The ClearSpeech Adaptive Speech Filter is an algorithm designed to filter noise
from audio signals containing both speech and noise. It is implemented in a
circuit board containing DSP circuitry and a small audio power amplifier.
Immunity from RF Interference
CLRdsp contains circuitry to reduce interference from the transmitted radio
signal. There are filters on all input wires, and decoupling capacitors at key points
throughout the electronics. There is a ferrite inductor in series with the positive
power lead.
Speaker level input is via a coupling transformer. The speaker level input ground
is not connected to the power return. This helps reduce any ground loops.
