Contesting & SDR

Compiling PowerSDR with Visual Studio 2008

Tobias — Sun, 21 Feb 2010 02:33:06 +0000

I decided to have a deeper look into Flexradio’s SDR Software PowerSDR. PowerSDR is published as open source under the GPL license and was written under Visual Studio 2003 against the old .NET 1.1 Framework. Unfortunately, the code was never migrated to a higher Version of Visual Studio. The last couple of days I had [...]

Let’s build a computer!

Tobias — Sun, 14 Feb 2010 14:09:16 +0000

While the average users mainly use the PC to surf the web and to order every now and a book on Amazon, we, the Amateur Radio community are using PCs much more intensively. Especially in Software Defined Radio appliances, the PC is a central part of the system. So are you aware what DMA, ASM [...]

Do you truly understand the SDR concept?

Tobias — Thu, 04 Feb 2010 10:41:25 +0000

A lot of magazine and articles have already covered the principles of software defined radio. Most of them contain mathematical equations which require a greater level of math. Certainly, without math there would be no SDR, but I believe, that the concept of SDR can also be explained without. Let me show you the SDR [...]

Vintage style Ham Radio video

Tobias — Sun, 31 Jan 2010 21:49:09 +0000

Just found a cool vintage style video Ham Radio video on You Tube. Lately Ham Radio Operators had again some press attention (even on CNN) about assisting in communications after the terrible earthquake in Haiti. After having seen the video below, I must admit that the way and the mission haven’t changed much over the [...]

Contest station KH7XS for sale!

Tobias — Wed, 27 Jan 2010 21:26:30 +0000

Are you looking for an awesome new property with a “ready-to-go” contest station? Should it be in a DX location, but with western standards? If you just answered these questions with “yes”, then you’ll be interested in this offer! Today, Bill, KH7XS / KH7B announced the sale of his hawaiian property. Bill is selling a 3 [...]

2009: More SDR kits sold than commercial Transceivers?

Tobias — Wed, 27 Jan 2010 13:14:27 +0000

Did you know that in 2009 more than 6000 Softrock kits have been ordered? Isn’t this an impressive number? Even having no concrete figures how many HF transceivers have been sold this year by the major brands like Yaesu and Icom, the trend is unoverseeable. The popularity of Software Defined Radio has increased significantly in [...]

FA-SDR-TRX part #3 – the Transmitter

Tobias — Fri, 25 Dec 2009 15:38:03 +0000

In the third article we will have a deeper look into the TX path of the FA-SDR-TRX. All components will be discussed, including the optional 1 Watt amplifier. Earlier Posts I wrote: FA-SDR-TRX, and allband & low budget SDR TRX First pictures of FA-SDR-TRX FA-SDR-TRX – part #1 – a Systems View FA-SDR-TRX – part #2 – the Receiver [...]

FA-SDR-TRX part #2 – The Receiver

Tobias — Wed, 09 Dec 2009 00:18:27 +0000

After a systems view on the FA-SDR-TRX, it’s time to go into more detail. This post is dedicated to FA-SDR-TRX’s receiver. Related Posts: FA-SDR-TRX part #1 – Systems View FA-SDR-TRX part #3 – The Transmitter First pictures of FA-SDR-TRX FA-SDR-TRX, and allband & low budget SDR TRX Block diagram Let’s recap shortly the block diagram. I think it’s useful to have [...]

FA-SDR-TRX part #1 – Systems View

Tobias — Tue, 08 Dec 2009 21:18:25 +0000

The FA-SDR-TRX is an allband low cost software defined radio. The FA-SDR-TRX was created by Harald DL2EWN an described in an article series in the German Ham Radio Magazine Funkamateur. After the big success of the single band kits like Softrock, SDR4080 or Genesis, the FA-SDR-TRX is the next step in the evolution of SDR [...]

My (bad) experiences with Audible.com

Tobias — Sun, 06 Dec 2009 00:47:57 +0000

I’m a fan of Audio Products. I’m daily listening to Music and Podcasts produced by both, amateurs and professionals. In preparation of the upcoming vacations, I decided to finally make a step out of the Itunes store and to signup for an Audible.com account. 24 Hours later I’m deeply disappointed up and I just canceled my [...]