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Re: [Discuss-gnuradio] On USRP and transmitting voice
From: |
Chris Albertson |
Subject: |
Re: [Discuss-gnuradio] On USRP and transmitting voice |
Date: |
Sun, 29 Apr 2007 14:35:17 -0700 (PDT) |
I was thinking the same. But then I thought that the USRP is overkill
if you are doing ham type waveforms as they are only 3Khz wide at
mosy. A studio quality computer "sound card" can take 192K samples
per second at 24 bits per channel.. GNU radio software can interface
to a high-end sound card
After the sound card you only need a mixer and a VFO. There are a
number of projects that are suplying simple SDR front ends like these.
I may buy smething like USRP later but for now I want to get
on the air for a lot less, About $40 is all you need for a very
limited front end -- RX and TX on a crystal bound frequency
once this works my plan is to replace the crystal with a
VFO and then figure out how to switch in filters.
Don't get me wrong a USRP would be great.
--- "Michael C. Menefee" <address@hidden> wrote:
> Hi folks,
> I'm a ham that has become interested in SDR in general, and GNU
> Radio/USRP. I'm looking to build an SDR that can TX voice (FM & SSB)
> on
> HF/2m/70cm
Chris Albertson
Home: 310-376-1029 address@hidden
Office: 310-336-5189 address@hidden
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