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© Copyright 2007 - ZARES (ZL1CVD Amateur Radio Equipm ent Supplies) – all rights reserved
Page 17
Receiving and Decoding APRS Data
This section describes one way of setting up a Windows PC to receive and decode APRS data. Be aware that there are
quite a few applications that will do the job however the author is only familiar with the details presented herein. Also note
an in depth step by step guide is beyond the scope of this manual so only a brief overview is presented. For an in depth
step-by-step guide, please visit
http://patmedia.net/ralphmilnes/soundcardpacket/index.html
.
What you will need
1. PC running Windows 98, NT, 2000, ME or XP with a built in sound card
2. 2m or 70cm receiver tuned to the same frequency as your ZTrak / Zares transceiver
3. An audio cable to connect the Zares to your PC
Download and install AGWPE
The key to sound card packet is a free program called AGWPE, a program written by George Rossopoulos, SV2AGW. It
can encode and decode packet tones using your computer's sound card. It is particularly valuable since it can act as a
"host" program for several good packet programs that do not have sound card packet capabilities of their own like
Tumonz, Etc.
•
Download from
http://www.elcom.gr/sv2agw/agwpe.htm
•
Once installed, you need to set up a Sound Card Radio Port
Download and install AGWTracker
AGWTracker is a program that will display APRS packet data from the Sound Card Radio Port you set up. Among other
things, it allows you to receive and send APRS data to or from the radio port or Internet. You can monitor the decoded
APRS packets, view a list of stations received, send and receive APRS messages and view station location (globally) with
the stunning on-line VirtualEarth or GoogleMaps. You can even load in your own maps!
•
Download from
http://www.elcom.gr/sv2agw/tracker.htm
Here are a few AGWTracker screen shots..
Weather Station View
Tracking objects
Multiple maps (including satelite images!)
Distance calculator
Station details
Station cov erage
Eagle ey e mode
Содержание ZTrak
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