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4

West Mountain Radio

Operating Manual

an appropriate supply for 117 VAC.  The CLRstereo will operate 

correctly with any voltage from 9VDC to 15VDC.  A quiet source 

will reduce noise in the audio.

USB Power:

 This is one of two possible sources of power for 

the CLRstereo.  The USB jack may be connected to a PC or 

standard USB charger to power the CLRstereo.

USB Data:

 This is the same connector as “USB Power.”  When 

connected to a PC two COM ports will appear at the PC.  If they do 

not appear (usually due to an older version of Windows) you will 

need to install the WMR drivers. The USB drivers can be installed 

by using the WMR Device Diagnostic Utility. This utility can be found 

on the West Mountain Radio website under Support > Downloads  

(www.westmountainradio.com/content.php?page=wmr-downloads)

 

The CLRstereo has two CLRmodule units inside.  The two COM 

ports can be used to monitor and control the two units.  This is not 

required for normal operation.  One use would be to update the 

firmware.  The CLRmod PC Utility program can be downloaded 

from the aforementioned download page to monitor and control 

the CLRmodule.  A hardware interface must be provided to 

interface the 0-3.3V signals on 

the CLRmodule to the PC RS232 

port or a USB port.

The West Mountain Radio 

CLRstereo has two CLRmodules 

inside and it has a USB interface 

connected to those modules.  

This provides an easy-to-use 

development platform for the 

CLRmodule.

Summary of Contents for CLRstereo ClearSpeech

Page 1: ...ty Drive Waukesha WI 53186 262 522 6503 sales westmountainradio com 2019 West Mountain Radio All rights reserved All trademarks are the property of their respective owners CLRstereo ClearSpeech Dual N...

Page 2: ...t nature of CW and allows it to pass noise free The CLRstereo uses the same Clearspeech algorithm as the CLRdsp product The CLRstereo can process two channels at once for use with two radios or a radi...

Page 3: ...mode when the transmit is complete the CLRstereo may take an additional second to learn the receive noise before suppressing it AUDIO OUT 1 8 stereo jack that contains both audio signals It can drive...

Page 4: ...byusingtheWMRDeviceDiagnosticUtility Thisutilitycanbefound on the West Mountain Radio website under Support Downloads www westmountainradio com content php page wmr downloads The CLRstereo has two CL...

Page 5: ...onditions When fully counter clockwise no filtering is done and music may be listened to Clip LED Red on indicates the incoming audio level is too high Reduce the input just below flashing Clipping di...

Page 6: ...s hum and heterodynes while passing voice and CW signals The adaptive nature of the noise reduction is apparent by observing its convergent time A single audible tone will vanish in about 1 second Whi...

Page 7: ...Dimensions 7 25 x 3 5 x 1 5 Power Requirements USB power or 9 to 15VDC 212mA typical Maximum Audio Output 2Vpp into a high impedance load 560mVpp into 8 Ohms Input Clipping Level 585mVpp volume contr...

Page 8: ...l be charged for repair or replacement of the CLRstereo or accessory made after the expiration of the warranty period West Mountain Radio shall have no liability or responsibility to customer or any o...

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