[OZAPRS] Low cost HF Modem

[Richter, Mike W]

Steve

I don't understand why you believe the TinyTrak at 300baud will not be
compatible with the existing practice - Tigertronics being one example.

My intent is to have total compatibility - 300 Baud with 200Hz shift.

Does the Tigertronics use the compressed MicE format - if not then the
full-length format will be more error-prone on HF.

Mike Richter   VK2BMM


-----Original Message-----
From: Steve Davis [mailto:steve at zl2ucx.gen.nz]
Sent: Wednesday, 22 October 2003 04:42 pm
To: ozaprs at marconi.ics.mq.edu.au
Cc: zlaprs at nzart.org.nz
Subject: Re: [OZAPRS] Low cost HF Modem


Mike, and others that have responded on this thread.

(copied to ZLAPRS list for interest)

We need to keep the same as existing HF 300bps packet, as there is 
already a reasonable amount of gear being used out there.

Have a look at the Tigertronics TM-1 Tracker. At $US90 it is not as 
cheap as a TT3, but in general is cheaper and smaller than buying a 
new GPS capable HF TNC.

   http://www.gpstracker.com/tm1.htm

I believe that there are a few in use in VK and ZL already.

I just have become a dealer for Tigertronics equipment here in NZ, 
and will have some in stock shortly.

73
Steve

> To get more people operating on HF, it would help to have low cost 
> APRS encoder and Modulator.
> 
> Byon is currently looking at reviewing the TinyTrak 3 design. It
> wouldn't be hard to have a configuration option to send the data at
> 300baud rather than the usual 1200 baud.
> 
> Byon will only add this option if there is a demand for it - if you
> want to see it add your comments to TinyTrak at yahoogroups.com
> 
> Mike VK2BMM


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