Timewave DSP-232, Operating Manual

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Chapter 3 Radio Installation
Chapter 3
Radio Installation
Overview
This chapter describes how to connect the DSP-232 to your radio receiver or transceiver.
If You Just Want to Listen
If you’re a short-wave listener or are only interested in receiving and not transmitting signals, the audio connection
to the DSP is simple—just plug one end of the supplied audio cables into either the RX AUDIO 1 or AUDIO 2
jacks on the rear of the DSP (as shown in Figure 3-1 below) and the other end of the cable is into the external
speaker/earphone jack of your radio.
Note : some short-wave receivers come with low-level outputs designed for use with a tape recorder. These
outputs typically don’t have enough power to drive the DSP circuitry—the DSP needs at least 200 mVp-p
for it to operate correctly.
Figure 3-1 Receive audio connections to the DSP.
If You Want to Transmit. . .
. . . you’ll need to make the proper connections to your radio’s speaker, microphone and the Push-To-Talk (PTT)
circuits.
The best way to connect the DSP to your transceiver is through its rear panel accessory port, if it has one—it’ll free
up the mike jack so you don’t have to swap connectors with your mike and the DSP when you want to use either
device. If your radio doesn’t have an accessory port, use its microphone connector for hook-up.
Note : if your controller is connected to your radio’s Accessory port and you leave your mike plugged in, if
you accidentally key the mike it’ll cause your radio to transmit whatever it hears from the DSP.
Radio Connection Requirements
!
Very Important: MAKE SURE THAT YOU REMOVE POWER FROM YOUR DSP AND RADIO
BEFORE MAKING ANY OF THE FOLLOWING CONNECTIONS.
You’ll need the following items to make a radio cable to connect the DSP to your transceiver:
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