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Re: [Discuss-gnuradio] Modem and/or ADSL Daughter card
From: |
Lamar Owen |
Subject: |
Re: [Discuss-gnuradio] Modem and/or ADSL Daughter card |
Date: |
Thu, 4 May 2006 16:48:47 -0400 |
User-agent: |
KMail/1.9.1 |
On Thursday 04 May 2006 14:01, Michael Milner wrote:
> It shouldn't be too difficult to design a daughter board for the USRP to
> sample phone line voltage (with an appropriate line interface circuit of
> course). After that it should be rather easy in GNURadio to generate DTMF
> tones for dialing, and modem tones for data communication.
> Any thoughts?
Yeah, just one: 47 CFR Part 68. As in FCC regulations on items that can be
connected to the PSTN. A part 68 interface card that could be used to
provide an interface to an LFRX/LFTX pair would be ideal.
Marcus can elaborate, being that he is employed in that field.
--
Lamar Owen
Director of Information Technology
Pisgah Astronomical Research Institute
1 PARI Drive
Rosman, NC 28772
(828)862-5554
www.pari.edu