SDR# (read SDR Sharp) is a PC-based DSP application for Software Defined Radio. The code is mostly in C#, but can achieve reasonable performance. The main purpose is to offer a simple proof of concept application to get hands into DSP techniques.

Download a copy or view sources at GoogleCode website:

http://sdrsharp.googlecode.com

// Youssef

I have a half dozen excess kits available from a group buy for my radio club.  I will ship them for $23.  Paypal to alan.r.hill@gnail.com.

Hello,
I'm looking for a Softrock v6.2 Lite rx kit or already assembled & properly working for VLF experiment.
After buying it, we will try to modify it together.

TNX.
ik8xoo (a*t) amsat.org
TNX and 73's.
Paolo.

This blog will show some experiments around the two SoftRock RXTX ( Ref. [1], [2]) built so far. A SI570 oscillator (Ref. [3]) and an Elecraft T1 ATU (automatc antenna match box) (Ref. [4]) were also built and wait for their application to the SoftRock RXTXs. So this blog will show some modifications of SoftRock RXTXs and the addition of some accessories. If everything goes well I would like to end up with a multi-band transceiver  :)

Practical tests will be done at our local clubstation DK0SU and sure -- I would like to meet other "SoftRockers" on the air.

73

Thomas, DF7TV

References:

• [1] DF7TV's notes on RXTXv6.2 - 40m/30m
• [2] DF7TV's notes on RXTXv6.2 - 20m/30m
• [3] DF7TV's notes on SI570/PICAXE experiments
• [4] Elecraft T1 ATU (automatc antenna match box)

Hi Everybody;
I'm really curious, What is the Freescale processor used on?
73's Bob K7HBG

Dear Anyone,

I want to understand more about the $60 sdr transceiver platform. Sent these questions to Tony on the contact page of his site but no reply. Also neither email contact nor specs page anywhere.

Admin: please remove if not for blog space.

I would like to understand the following:

1.Does the hardware work with software like GNU radio?

2.Does the platform have an API? Open source?

3.What is the bit length of I/Q?

4.Can I / Q be parsed into bins for later processing with software like GNU radio?

5.What waveforms can be programmed on the platform?

6.For Rx (hardware), what are sensitivity, loss, and noise?

7.For Tx (hardware), what is loss, noise?

8.For Tx/Rx what is isolation between two?

9.At ADC/DAC entry/exit, what is the voltage? If Tx signal generated, what is strength?

10. As sound card being used, the bandwidth will be limited to 20KHz? At what stage is the down/up conversion done? Wouldn’t the decimation take place after the down conversion(after digital conversion)?
Where is the decimation of signal done? At what factor? Is this programmable?

I actually keep a blog here http://m1kta-qrp.blogspot.com/ that details all my qrp and construction activities.

I have SDR RX build for many/most of the amateur frequencies and I am also working on a few other SDR activities.

Take a look at the blog for details  I update it reasonably regularly. Note that I tend to update project blogs so the older posts can be updated whenever work on a project progresses.

Hi All,

Playing catch in the the shack, building all the kits I had for a while.

I need a 14.333Mhz xtal HC49, pref low profile/SMD for a softrock-lite for use on a ICOM  with a 10.75 MHz IF.

As it being used after a roofing filter it needs to be somewhere close to center frequency,

digi-key have 14.3359MHz as a stock item, good price less than $1 and $25 p+p.

That would give a center freq of 10.7519 MHz, maybe pull it 5 KHz lower, but not sure if its  too far out of the passband of the roofing filter. I can sample at 96KHz.

I have lost the instructions etc for my SR-v6.0, 80 metre rx. Having bought it some time ago and only just started to build it. Has any one got a copy they could email me please? At I only have a pile of very nice components with no pictures, circuit, or distructions. HELP would be much appreciated. thank you.

Stuart M0RXX

http://zunkworks.com/node/5/

I've posted lots of high resolution photos and some descriptions of the build.  I've finally gotten around to testing the TX. So  I'll probally be posting more info when I get some time.  I had my first partial QSO on PSK/40m @~2Watts into a gutter/antenna with a station about 500mi away.  I say partial as he was having trouble getting clear text, and I never sent his signal report...  I plan on posting some screen shots, I/Q and mp3 recordings, and misc info/details.