Argent Data Systems OpenTracker USB Bedienungsanleitung PDF herunterladen

G6GVI’s guide to getting

started with your Tracker

Different models

There are two US-based companies currently producing APRS Trackers:

Byonics in Las Vegas make the TinyTrak range;

Argent Data Systems in California make the OpenTrackers.

Their two product lines are very similar, and their interfaces are identical, so once you’ve made

up suitable patch-leads for your radios and GPS, they are interchangeable.

Patch leads

There are only two interfaces to the Tracker:

The Radio port (9-way D-type socket), which connects to the transceiver;

The Data port (9-way D-type plug), which connects to the GPS or PC COM-port.

Radio port

This includes connections for DC power input, PTT, and audio in and out to/from the radio.

The Tracker includes a 5V linear regulator, so an input of a least 7.5V (anywhere between 7.5

and 15V) is required. +Vcc is applied to pin 7, with ground on pin 6.

The audio output from pin 1 on the Tracker needs to be connected to the microphone input

on the radio.

The PTT output from pin 3 on the Tracker needs to be connected to the radio’s PTT line.

Note that most Trackers are supplied with an internal resistor (usually 2.2k) fitted between pins 1

and 3 (R3 in the OT, or R8 in the TT). This is designed to operate the combined PTT/mic input

on most handheld transceivers, but must be disconnected for radios with a separate PTT line.

Since I use my Tracker with both handie and mobile radios, I’ve removed the internal resistor,

but fitted 2K2 inside the D-type plug of the patch-lead I’ve built for use with the handies only.

The audio (loudspeaker) output from the radio needs to connect to pin 5 on the Tracker.

Note that the Tracker can’t actually decode incoming packets, but it uses a simple noise-detector

on the audio to determine whether or not the channel is busy. This is used to prevent the Tracker

from transmitting until the channel is clear, to reduce the chance of interference.

Full wiring diagrams for connections between the Trackers and most radios are published here:

http://www.byonics.com/cables/tinytrak3.php

Data port

This handles bi-directional serial data at 4800 baud on an “RS-232” interface. The voltage levels

are bipolar (typically between ±5V and ±9V). See the following Configuration and GPS

Interface sections for more details.

1 2 3 4 5

Inhaltsverzeichnis

Seite 1 - G6GVI’s guide to getting

G6GVI’s guide to getting started with your Tracker Different models There are two US-based companies currently producing APRS Trackers: Byonics in La

Seite 2 - Setting

Configuration Before it can be used on-air, the Tracker needs to be connected to a PC, to set up its configuration (once these are s

Seite 3 - TinyTrak

Once all the parameters are set to your preferences, Write the configuration to the unit, and also Save it to a file on your hard-disk. Note that b

Seite 4 - GPS interface

OpenTracker The OpenTracker configuration window looks like this: Since the SmartBeaconing mode has been selected, the “TX Interval” has been greye

Seite 5 - Burst-after-voice (PTT mode)

In order for the Tracker to work, it must be connected to a GPS receiver producing live data, so the receiver must have good visibility of the sky. Bo

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Argent Data Systems OpenTracker USB Bedienungsanleitung

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Weitere Dokumente für Navigatoren Argent Data Systems OpenTracker USB

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