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Take a Spin

iSDR artworkiSDR
Digital Confections

Price: Free
Release Date: June 05, 2010

iSDR is a software defined radio application designed for experimenters, shortwave listeners, and amateur radio enthusiasts looking for a truly portable software-defined radio receiver.

Note: receiving live on-air signals will require purchasing or constructing a "quadrature sampling detector (QSD)" and connecting it between an antenna and the microphone input jack. Without the QSD device iSDR will only play an internal audio file recording of actual radio signals. Please see the support web site for more information.

iSDR is not a streaming audio application. It is designed to let the listener experience actual on-air radio reception of signals snagged from the ether by an honest-to-goodness wire antenna! iSDR can also play an internal audio file so that everyone can experience the thrill of software defined shortwave reception, even with no accessory attached.

iSDR works best on iPhone 3Gs, iPod touch 3rd Gen., iPad and later generation products.

© Charles E. Scharlau


Take a Spin

Latest News

iSDR - Google News


Mon, 23 May 2016 14:53:30 GMT


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Fri, 03 Jun 2016 04:16:53 GMT

Is Dr M a defining, turning point for Malaysia?
Malaysiakini (subscription)
At at helm of this fast gaining disapproval of Umno's present political reign is Dr Mahathir Mohamad talking to the entire nation. And that is increasingly putting Najib and his coterie nudged into the defensive corner. And silencing Dr Mhathir will ...

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Sat, 14 May 2016 02:28:11 GMT

KRNV My News 4

Ask Joe: Where is Dr. Robert Rand?
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Tue, 31 May 2016 21:34:37 GMT

Who Is Dr. Syd Jennings On 'The Night Shift'? That's Jennifer Beals
In the two-part Season 3 premiere of The Night Shift, the overnight crew gets involved in a strange car accident/rescue while Dr. Drew Alister (Brendan Fehr) serves overseas in Afghanistan. There he teams up with a colleague, Dr. Syd Jennings, to treat ...

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Mon, 30 May 2016 14:46:28 GMT

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Thu, 12 May 2016 15:04:44 GMT

Daily Mail

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Daily Mail
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Wed, 25 May 2016 15:35:05 GMT

Who Is Dr. Theo Yedlin On 'Wayward Pines'? That's Jason Patric
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Wed, 18 May 2016 18:41:24 GMT

7500 To Holte (blog)

Who is Dr. Tony Xia, Aston Villa's new owner?
7500 To Holte (blog)
I think you'll all join me in saying a huge Néih Hóu to Dr. Tony Xia, the new owner of Aston Villa FC. There's a lot to worry about, though. Villa are in the hands of someone from far away, from a different culture with different principles. It's never ...
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Sun, 22 May 2016 22:41:40 GMT


Is Dr. Luke Watching The 2016 Billboard Awards? He Probably Wouldn't Miss It
The road to the Billboard Music Awards has been a rough one for Kesha, whose life and career has been marked by major upheaval in the last two years. When rumors began to fly that Kesha was performing at the Billboard Music Awards, it was also part of ...

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Mon, 06 Jun 2016 02:05:18 GMT

Malaysia Chronicle
Pakatan Harapan, in particular Parti Amanah Negara, is trying to avoid talking about the Private Member's Syariah Amendment Bill issue in the Sungai Besar and Kuala Kangsar by-election campaigns. This is because Amanah cannot afford to declare that ...

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