Monthly Archives: January 2013

Android Meets the RTL2832U

Editors Note – Apparently SDR Touch is temporarily off the Google Play Store. Martin hopes to have it back soon. You can still get SDR Touch directly from Martin, until the issue has been resolved. (See Martins comment below). In the meantime, you can download SDR Touch from Martin’s Website.

Ok, this was bound to happen sooner later. With the introduction of some very powerful Android tablets last year in the $199 price range like the Nexus7, Kindle Fire, and the Samsung Galaxy Tab, combined with the availability of the inexpensive RTL2832U SDR dongles, it was inevitable that some would do a “mashup” of the two sooner or later. The result is an application called SDR Touch by Martin Marinov. At this time the application is still in the development phase, but is now available  from the Martin’s Website. For that reason, any thing we say here may change in the next 5 minutes.  We contacted Martin and he kindly sent us out the current fully functional version of SDR Touch to take a look at. We were impressed with Martins’ work.…

Per Vices Noctar SDR Card First Look

Recently, the good folks at Per Vices sent us out a Noctar SDR radio card to take a look at. The Noctar card began shipping earlier this month. Normally we discuss cheap SDR radio gear at HRS, but we felt that the Noctar is a break through SDR product that would be worth investigating further. In some respects the Noctar does qualify as cheap SDR when compared to its competition in the wide coverage SDR radio category. The Noctar card has a receiver range of  100KHz through 4GHz, with the a bandwidth up 250MHz. The Noctar card alone is sold for $749 or as a kit for $849 which includes two circuit board type log periodic antennas that cover 650MHz to 6500MHz and SMA cables. The other very interesting fact about the Noctar is that it can also transmit from 100KHz to 4GHz up to a bandwidth of 250MHz. The nearest competition in this category of SDR radios can cost easily two to three times more than the Noctar. …

Using the RTL2832U on the Macintosh

Mac users may have felt a little left out of the RTL2832U SDR revolution since there has not been a really easy way to get the RTl2832U to run with one of the SDR software programs like HDSDR. If you are a pretty hardcore Mac user, you know that OSX is basically a custom version of Linux. So, if you really wanted to dig in to the Linux side of OSX you can get a RTL2832U running under OSX. The simplest way to get a RTL2832U stick running on a Mac is to just install Windows under Bootcamp and away you go. However, thanks to Alain de Carolis, there is now a fast easy way to get the RTL2832U going on your Mac. You don’t even have to install anything on your Mac. You can even run the software from a USB stick. Alan has created a custom version of the BorIP server and HDSR that is wrapped in some “linux magic” that will allow both the RTL2832U and HDSDR to run on your Mac. You simply download the DMG file from Alains’ website and unpack the DMG file. …

Studio1 SDR Software Review

Introduction
As you know, SDR radio basically consists of two components, the radio hardware and the software used to process the signal. As SDR radio hobbyists we typically spend a lot of time looking into the specs of the hardware, but we don’t but as much consideration into the software side of things. The software can be just as important as the hardware we choose to get good performance from a SDR radio system. We often turn to some of the free software offerings to get started in SDR hobby. While there is absolutely nothing wrong with that and we greatly appreciate the work these authors has put into their efforts. However, you have to keep in mind that some of these programs use DSP (Digital Signal Processing) engines developed for SDR use that have been handed down for many years and have only been improved slightly over their original incarnations.  With that in mind, the developers at  SDR Applications set out to create a new high performance DSP engine for better SDR performance from your SDR hardware. That product is now called Studio1 and is distributed by Woodbox Radio. Studio1 is not a free application. However, this is …