Timewave DSP-232, Operating Manual

Page: 26 / 271

Chapter 3 Radio Installation
•
the AEA-supplied radio cable for each radio you want to connect
•
a microphone or accessory-plug connector for your transceiver
•
a pin assignment diagram of your radio’s microphone and/or accessory port
•
a low-wattage (under 40W) soldering iron and solder
•
wire cutters, strippers or a small pocket knife
The lines you’ll be connecting from your radio to the DSP are:
♦
Receive Audio: carries the audio signals from your radio’s internal or external speaker or headphone jack
to the DSP. The audio can usually be tapped from a particular pin in your transceiver’s mike connector or
through your radio’s external speaker jack.
♦
Microphone Audio (AFSK): carries the transmit audio signal from the DSP to your transceiver for
transmission.
♦
Ground: provides an electrical return-path for the DSP’s DC signals.
♦
PTT: when energized—like when you press the button on your mike—it puts your transceiver into
transmit.
If your transceiver has these four lines, then you shouldn’t have any problem getting your radio to work with the
DSP.
Connections for Specific Transceiver Models
Appendix A contains information and diagrams for connecting the DSP to many modern HF and VHF transceivers.
Go there to locate the transceiver model(s) you’ll be connecting to your DSP and at the same time, refer to your
radio’s Operating or Owner’s manual to verify that the pin assignments are correct. (If you don’t find your
transceiver listed there, then locate a model from the same manufacturer that has the same accessory or mike
connector and pinouts as the unit you’ll be connecting—usually each manufacturer has consistent pin assignments
so the hook-ups will be the same.)
!
Very Important: IF YOU HAVE ANY QUESTIONS OR DOUBT ABOUT YOUR MANUAL’S WIRING
DIAGRAM FOR YOUR RADIO OR THERE’S A DIFFERENCE IN THE PIN-OUT DIAGRAMS
BETWEEN YOUR RADIO’S MANUAL AND OURS, CALL OR WRITE YOUR RADIO’S
MANUFACTURER OR AEA FOR ASSISTANCE.
Basic Connections and Adjustments
The following table (3-1) and figure (3-2) will help you identify the connection points to the DSP’s radio cable.
Wire
Pin Signal Name Color Description
4
Receive Audio Green Audio from your radio to the DSP
1 Microphone Audio White Transmit audio from the DSP to your transmitter
5 Squelch Input Black Squelch input from radio ( optional )
2 Ground Brown Audio and PTT common return
3 Push-To-Talk Red Keying line to your transmitter
Shield/Drain Wire Silver Shield of cable / Microphone ground
Radio Port 2 has these 9600bps packet connections also
6 Receive Audio Green Audio from your radio to the DSP
7 Microphone Audio White Transmit audio from the DSP to your transmitter
Table 3-1 Radio Port 1 and 2 and Cable Connections
3-2 September, 05