[aprssig] 9k6 Packet SDR
wb8skp at gmail.com
Thu Mar 13 13:56:29 CDT 2014
The dongles BW is about 2.4Mhz.
----- Original Message -----
From: "Bill Vodall" <wa7nwp at gmail.com>
To: "TAPR APRS Mailing List" <aprssig at tapr.org>
Sent: Thursday, March 13, 2014 1:07 PM
Subject: Re: [aprssig] 9k6 Packet SDR
> On Fri, Mar 7, 2014 at 6:00 AM, John Langner WB2OSZ <wb2osz at comcast.net>
>> Dire Wolf version 1.0 has two types of "software audio cables" for use
>> gqrx and rtl_fm.
> Still thinking about how cool this is going to be - decoding 9600
> packet at a wide range of frequencies with the HDTV dongle SDR. Hope
> to get to try it soon.
> A couple more ideas...
> * It will probably possible to create a CD or file image of raw data
> (audio) captured off the air. Does anything like this currently
> exist for testing? A stock sound card setup probably won't work as
> it doesn't have the bandwidth and discriminator audio. Capturing
> from the RT dongle should work???
> * The next step - if we can decode 9600 packet from a dongle - why not
> 19200? The Kantronics data radios would generate that. Why not
> 56K? More? What is the bandwidth limit of the dongle receivers?
> Since they're for TV I'd image it's 6 MHz...
> Bill, WA7NWP
> aprssig mailing list
> aprssig at tapr.org
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