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softrock40 · Softrock-40 Interest Group
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Group Information

  • Members: 4937
  • Category: Shortwave
  • Founded: Sep 11, 2005
  • Language: English
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Activity within 7 days:

207 New Messages - 12 New Files

Description

The SoftRock-40 is a small, low-cost, good performing 40-meter "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio.

This is the place to express your enthusiasm, ideas, experiences, modifications, extensions and maybe more ?

Announcements

Jul 12, 2008 RXTX+Xtall v6.3 transceiver [docs, proto]
May 2, 2008 SoftRock Kits availability
May 1, 2008 Lite+Xtall v8.3 [docs, notes]
March 31, 2008 Beta Lite+Xtall v8.0 and v8.1 [docs, pics]

Most Recent Messages

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Re: Sound cards
... It's not accurate to say that "nobody looks at noise above 20KHz". Many audio interfaces do something called noise shaping
Posted - Sun Jul 20, 2008 12:34 am
 Mark J. Dulcey
mdulcey
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Re: Delta 44 Distortion at 96khz sampling rate
Paul, Increase the "DMA Buffer Size" in the Delta 44. Your PC may be a little taxed at 96 kHz. Bill WA9PWR
Posted - Sat Jul 19, 2008 11:47 pm
 Bill Dumke
billspiro1
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BlockSchematic?
Hi Can I find a Block-schematic of the Softrock V6.2 or V6.3 RXTX telling the principes of how it works. How can I find some descrption how SDR works in
Posted - Sat Jul 19, 2008 11:32 pm
 filledilleolle
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Re: Sound cards
... I don't have one but I have seen reports from those that have tested it. You forgot to add "with added noise" The audiophile card has more noise than the
Posted - Sat Jul 19, 2008 10:47 pm
 k5nwa
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Sound cards
I am just getting started with SDR's and the Softrock radios and was looking at getting a good sound card. I know the Delta 44 is highly recommended but I was
Posted - Sat Jul 19, 2008 10:36 pm
 Peter W. Borders
tcbordp
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Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2008 908 921 985 1067 840 769 602
2007 693 655 807 866 675 787 980 830 678 806 892 600
2006 467 506 766 544 551 399 336 331 372 614 511 466
2005 178 691 655 531

Group Email Addresses

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