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[aprssig] Hidden tracker with laptop access

(SV2AGW)George Rossopoulos sv2agw at raag.org
Wed Dec 1 08:50:30 UTC 2004


Just to inform you about current mUSB TNT (not TNC but Terminal Node &
The new Firmware does APRS digi. New Firmware can be uploaded with the
companion maintenance utility in 30 seconds.
Supports all digi functions RELAY,WIDE,TRACE,WIDEn-n,TRACEn-n, call
substitution , dupe checking etc
The most important is that while in KISS mode everything else works, I mean
you can still send Position packets if a GPS is attached, and the APRS digi
still works.
Also have in mind that while in TRACKER mode (enters it when a GPS is
attached) it hears before transmitting, is not a deaf TRACKER!

For APRS client programs is better to use it in KISS mode. 

We are waiting for new units from the factory which assemblies them, next
So shipping will be next day.

The firmware is constantly in Beta version, users ask for new things and
implement them...

micro USB TNT (A pocket TNC with Build in Tracker and APRS digi with USB and
battery for portable operation)

Check AGWTracker Now! http://www.elcom.gr/sv2agw

(SV2AGW)George Rossopoulos
sv2agw at elcom.gr
George Rossopoulos
Nikanoros 59
-----Original Message-----
From: aprssig-bounces at lists.tapr.org [mailto:aprssig-bounces at lists.tapr.org]
On Behalf Of Stephen H. Smith
Sent: Wednesday, December 01, 2004 9:30 AM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] Hidden tracker with laptop access

Hinton Gary-MCG30554 wrote on 11/30/2004, 2:53 PM:

 > The laptop connector will be placed somewhere on or under the dash.  When
> I need to display APRS in the car or make configuration changes, I will  >
simply plug in the laptop.  When the laptop is not connected, a plug  >
could  > be installed that would select between the UHF or VHF radio.
 > Any suggestions on selection of the tracker?

You will need more than a simple tracker if you want to "display APRS in the
car".  The essence of a tracker is that it is a TRANSMIT-OMLY device. If you
want the ability to receive as well, you will need a full TNC.

You could use a KPC3+ in the standalone tracker mode, and then plug in the
PC when needed, but the KPC tracker doesn't do smart beaconing and doesn't
do Mic-E transmit format.

The new AGW pocket-sized USB-interfaced TNC has the ability to operate as a
stand-alone tracker or digipeater, or act as a full TNC when conected to a
computer.  It's USB interface would be an advantage for newer "legacy-free"
laptops with no serial ports. I don't know anything 
whether it can do smart beaconing or Mic-E format however.   More info here:

The cheap way to get Mic-E and smart beaconing is with the Byonics TinyTrak
which has both but is strictly a transmit-only device -- connect one end to
your GPS serial data output and connect the other end to you radio's mic and
PTT lines. It also features a power control output line which can control a
relay to turn on the GPS/radio before sending a beacon, and then shut them
down again.  A naked board kit (you package it) is  about $35.  Details at:

Stephen H. Smith                wa8lmf (at) aol.com

Home Page:                      http://wa8lmf.com

New/Updated Symbols for         http://members.aol.com/wa8lmf/ham
UI-View and APRSplus:

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