Omnicron Electronics - Professional Voice Logging Recorders and Accessories - since 1975 
OMNICRON ELECTRONICS
 Professional Voice Logging Recorders  and  Accessories

    

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Omnicron Electronics - Professional Voice Logging Recorders and Accessories - since 1975

 

RSA-M3 TWO-WAY RADIO
SUPERVISORY ADAPTER

RSA-M3 Two-Way Radio Supervisory Adapter
  

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DESCRIPTION
      The RSA-M3 is used to provide a simple and inexpensive method of connecting voice logging recorders to two-way radios that are not remote controlled (with remote controlled radios most digital logging recorders can be directly connected to the control pair). It combines receive and transmit audio at levels matched to the line input of voice logging recorders. It also provides transformer isolation and RF bypass.
         For use only with two-way radios that have switched transmit audio (about 300 mv of transmit audio that is muted by the radio when not transmitting). Many radios no longer mute the transmit when not transmitting. If your radio does not mute the transmit audio when not transmitting, see: Omnicron RSA-M4 or RSA-U5 adapters.
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INSTALLATION
      The RSA-M3 is supplied with cables and connectors which have been wired to meet most standard applications. It can also be customized to meet unusual requirements. Consult your place of purchase if cables are required with non-standard lengths, connections, or circuitry.

1. The short three wire gray cable connects to the two-way radio audio.

a) Connect the BLACK lead to radio common (chassis ground).

b) Connect the GREEN lead to receive audio (about 0.5 vAC when active).

c) Connect the RED lead to transmit audio (about 0.1 vAC when active).

2. The RJ-11 telephone style jack on the RSA-M3 connects to your recorderís audio input. Receive and transmit audio are mixed together on the center two pins of this RJ-11 jack. Use the eighteen-foot phone cable supplied with each RSA-M3 or other suitable wiring to connect from this jack to your recorder.

3. Locate a convenient spot on your radio to mount the RSA-M3. Ensure that there is enough slack in the cables so that they can be easily un-plugged, if required, and that it will not interfere with the operation of the radio. Use the double stick foam pad and cable ties which are included with each RSA-M3 to attach it to your radio.

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IN CASE OF DIFFICULTY
      If the unit fails to work properly, recheck all connections and test your recorder to see that it is operating properly. Make sure that the microphone is only active when transmitting, otherwise you could record room sounds between transmissions (set radio jumpers, or program for switched transmit audio). Assistance is available from your place of purchase, or directly from Omnicron Electronics at the phone numbers listed below and via this web site.

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NOTE
      Federal law 90-351 title 18, section 2511, sub section 2D, requires that at least one participant in a recorded conversation be informed of the recording. Check your state and local regulations for further guidelines.

bulletContact your Omnicron representative for assistance in the selection of the products that are best suited to your application.

 

 

                          Prevent costly mistakes - record all important phone and two-way radio conversations. Compact, economical recorders that document every word of your important conversations.    
                                   OMNICRON ELECTRONICS 
                        554 Liberty Highway Unit 2,  Putnam, CT  06260

Phone:
(860) 928-0377

 Fax:
(860) 928-6477
E-mail: 
omnicron@snet.net  
 

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