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Version 1.73 Copyright © 1997 Link Communications Inc. 1/18/97
Connecting the Receiver Audio
- 2 types of audio can be used on the RLC-Club controller:
Type 1: De-emphasized audio (Speaker Audio)
Type 2: Discriminator audio (Raw Unsquelched Audio)
- If type 1 audio is used, remove configuration jumper (Labeled J3 "-6dB Filter"). This
removes the de-emphasis filter from the circuit. If you are using discriminator audio, connect
J3. The filter will not allow PL to pass through the controller. Contact Link Communications
Inc. if you need to pass PL through the controller.
- The audio input is connected to pin #5 of the male DB-9 connector
- The audio adjustments will be described in Step #5.
- Prefered audio input level to the controller is 100mV - 500mV peak-peak audio
Summary of Jumpers Settings
• J1 - Port 1 and/or Port 2 RLC-MOT squelch module interface connector. This
connector allows direct connection to the squelch module. If the module is not used,
pins 2,3 must be jumpered (Default). When using the RLC-MOT module remove the
jumper and simply install the module.
• J2 - Port 1 and/or Port 2 RLC-ADM digital audio delay module interface connector.
This connector allows direct connection to the digital audio delay module. If the
module is not used, pins 1,2 must be jumpered (Default). When using the module make
sure the RLC-ADM's connector labeled RLC-3 is the one that is loaded, not the
connector at the other end. When using the RLC-ADM module remove the jumper and
simply install the module.
• J3 - Port 1 and/or Port 2 -6dB deemphasis switch. When this jumper is off, flat audio is
required. When this jumper is across the 2 pins, pre-emphasis audio is used.
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