[aprssig] Re: Agw tracker and Agw packet engine

(SV2AGW)George Rossopoulos sv2agw at raag.org
Mon Jan 15 14:19:26 CST 2007


Baycom does NOT work on XP or WIN200 unless you have a legacy serial port.
Then you MAY be able to use it with PEPRO.(its not for sure)
In brief its better to use the Soundcard modem which outperforms the Baycom.

In any case use first AGW PAcket Engine (Freeware) for Soundcard. Then setup
AGWTracker use it and if ok then you can register (if you wish). Trial
version of AGWTracker has no timelimit.Its full fuctional but does not
calculate the Password for the APRS server. But you can ask me to send you a
password for APRS server login.

(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: Monday, January 15, 2007 10:25 AM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] Re: Agw tracker and Agw packet engine

sparkfel at qwest.net wrote:
> At 11:31 AM 1/14/2007, Stephen H. Smith wrote:
>> 1)   You will have to purchase the Packet Engine Pro.  The freeware 
>> version won't work with the Baycom modem on Win 2K or XP .
>> 2)  Even the Pro version (which you can try free for 30 days to "test 
>> drive")may not work,   since any laptop modern enough to run XP 
>> probably either a) doesn't have serial ports at all or b) has ACPI 
>> [power managed] serial ports which won't work with AGW.
>> The Baycom isn't really a modem at all.  It's a high-gain audio amp 
>> that feeds clipped and saturated receiver AUDIO (not demodulated 
>> serial data) into one of the hand shaking lines of the serial port 
>> (not the data-in line).  Software on the PC counts how many 
>> times/second the pin is flipped up and down to determine what audio 
>> tone freq is being heard.
>> In other words, the "modem" is in software inside the PC. This 
>> requires that the program running on the PC have direct access to the 
>> serial port HARDWARE, bypassing Windows' overhead.  This can be done 
>> in DOS, Win 3.x  and Win 95/98 but is nearly impossible to do in Win 
>> 2K or XP.
>> You will be better off trying to use AGW's soundcard mode instead.
> Interesting.  It's funny how so many people say serial ports don't 
> work under XP in DOS, but I've run Trunker (in a DOS Box) on several 
> XP machines, using a very simple two-level data slicer.  It also works 
> with other DOS-based decoder software for ACARS, POCSAG, etc.
> I will admit, most soundcard based decoders work well and are 
> generally easier to set up.

I'm just requoting what the AGW website says about  the Baycom -- that 
it won't work on the virtualized power-managed serial ports in 2K or XP. 


Stephen H. Smith    wa8lmf (at) aol.com
EchoLink Node:      14400    [Think bottom of the 2M band]
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